REFERENCES
1. International Energy Agency. Global Hydrogen Review 2024. Available from: https://www.iea.org/reports/global-hydrogen-review-2024 [Last accessed on 24 Jun 2026].
4. Bhattacharjee, S.; Linley, S.; Reisner, E. Solar reforming as an emerging technology for circular chemical industries. Nat. Rev. Chem. 2024, 8, 87-105.
5. Yue, S.; Zhao, Z.; Zhang, T.; Li, F.; Wang, P.; Zhan, S. Photoreforming of plastic waste to sustainable fuels and chemicals: waste to energy. Environ. Sci. Technol. 2024, 58, 22865-79.
6. Yao, Y.; Zhang, J.; Shi, L.; Wang, S.; Duan, X. Solar fuels production from plastics and biomass photoreforming. Energy. Fuels. 2025, 39, 14455-82.
7. Toe, C. Y.; Tsounis, C.; Zhang, J.; et al. Advancing photoreforming of organics: highlights on photocatalyst and system designs for selective oxidation reactions. Energy. Environ. Sci. 2021, 14, 1140-75.
8. Ashraf, M.; Ullah, N.; Khan, I.; Tremel, W.; Ahmad, S.; Tahir, M. N. Photoreforming of waste polymers for sustainable hydrogen fuel and chemicals feedstock: waste to energy. Chem. Rev. 2023, 123, 4443-509.
9. Atilano-Camino, M. M.; García-González, A.; Olivo-Alanís, D. S.; García-Reyes, R. B. Photoreforming of fermentation byproducts by TiO2 and Pt/TiO2 to enhance hydrogen production: insight into a real perspective. J. Environ. Chem. Eng. 2024, 12, 112017.
10. Karimi Estahbanati, M.; Babin, A.; Feilizadeh, M.; Nayernia, Z.; Mahinpey, N.; Iliuta, M. C. Photocatalytic conversion of alcohols to hydrogen and carbon-containing products: a cleaner alcohol valorization approach. J. Clean. Prod. 2021, 318, 128546.
11. Liu, Y.; Miao, J.; Zhang, W.; Wei, A.; Wang, J. In-situ photodeposition of co-catalyst Ni2P on CdS for photocatalytic conversion of ethanol for synergistic hydrogen production. J. Fuel. Chem. Technol. 2024, 52, 1629-40.
12. Sanwald, K. E.; Berto, T. F.; Eisenreich, W.; Gutiérrez, O. Y.; Lercher, J. A. Catalytic routes and oxidation mechanisms in photoreforming of polyols. J. Catal. 2016, 344, 806-16.
13. Pecoraro, C. M.; Di Franco, F.; Bellardita, M.; Loddo, V.; Santamaria, M. Enhancing H2 production rate in PGM-free photoelectrochemical cells by glycerol photo-oxidation. Int. J. Hydrogen. Energy. 2024, 49, 322-36.
14. Wahab, A.; Idriss, H. Study of the photocatalytic reforming and oxidation of Glycerol over Ag-Pd/TiO2. Int. J. Hydrogen. Energy. 2024, 52, 159-71.
15. Hai, H. T. N.; Nguyen, T. T.; Nishibori, M.; Ishihara, T.; Edalati, K. Photoreforming of plastic waste into valuable products and hydrogen using a high-entropy oxynitride with distorted atomic-scale structure. Appl. Catal. B. Environ. Energy. 2025, 365, 124968.
16. Tam Nguyen, T.; Edalati, K. Efficient photoreforming of plastic waste using a high-entropy oxide catalyst. J. Catal. 2024, 440, 115808.
17. Zhao, H.; Yu, X.; Hu, G.; et al. Confined synthesis of BiVO4 nanodot and ZnO cluster co-decorated 3DOM TiO2 for formic acid production from the xylan-based hemicellulose photorefinery. Green. Chem. 2021, 23, 8124-30.
18. Gaya, U. I. Heterogeneous photocatalysis using inorganic semiconductor solids. Dordrecht: Springer Netherlands; 2014.
19. Shelake, S. P.; Sutar, D. N.; Abraham, B. M.; Banerjee, T.; Sainath, A. V. S.; Pal, U. Emerging photoreforming process to hydrogen production: a future energy. Adv. Funct. Mater. 2024, 34, 2403795.
20. Alsalka, Y.; Al-Madanat, O.; Hakki, A. TiO2-based photocatalytic hydrogen production: how to transfer it to an applicable approach? Appl. Catal. A. Gen. 2023, 662, 119287.
21. Du, M.; Zhang, Y.; Kang, S.; et al. Trash to treasure: photoreforming of plastic waste into commodity chemicals and hydrogen over MoS2-tipped CdS nanorods. ACS. Catal. 2022, 12, 12823-32.
22. Kumai, Y.; Nagata, M. Hydrogen production by photoreforming of organic waste using Cd-ZnS solid solution photocatalyst via MOF precursor. Meet. Abstr. 2024, MA2024-02, 4006.
23. Liang, E.; Cheng, K.; Liu, X.; et al. Zinc cadmium sulphide-based photoreforming of biomass-based monosaccharides to lactic acid and efficient hydrogen production. J. Colloid. Interface. Sci. 2025, 683, 432-45.
24. Song, J.; Rao, C.; Zhang, Z.; Yang, X.; Zhang, Y. CdS quantum dots with sulfur defects for photoreforming plastics into valuable chemicals coupled with hydrogen production. Mol. Catal. 2025, 579, 115049.
25. Yan, J.; Sun, D.; Huang, J. Synergistic poly(lactic acid) photoreforming and H2 generation over ternary NixCo1-xP/reduced graphene oxide/g-C3N4 composite. Chemosphere 2022, 286, 131905.
26. Mohanty, C.; Samal, A.; Kumar, J.; Behera, A. K.; Das, R.; Das, N. Design and first-principles investigation of step-scheme (S-scheme) g-C3N4/α-MnO2 nanojunction for polystyrene photoreforming into value-added chemicals and hydrogen. Int. J. Hydrogen. Energy. 2025, 120, 628-41.
27. Mohanty, C.; Samal, A.; Das, N. Concurrent photoreforming of polyethylene into commercial chemicals and hydrogen generation utilizing g-C3N4/Co3O4 Z-scheme heterostructure: a waste-to-wealth concept. Int. J. Hydrogen. Energy. 2024, 61, 84-93.
28. Munusamy, T. D.; Chin, S. Y.; Tarek, M.; Khan, M. R. Sustainable hydrogen production by CdO/exfoliated g-C3N4 via photoreforming of formaldehyde containing wastewater. Int. J. Hydrogen. Energy. 2021, 46, 30988-99.
29. Sulaiman, N. H. M.; Wang, S.; Yue, H.; Wei, J.; Schmuki, P.; Zhou, X. Hydrogen evolution using alloyed AuPd/TiO2 hollow spheres by photoreforming of polyethylene terephthalate waste. J. Mater. Chem. A. 2025, 13, 12545-52.
30. Umair, M.; Ruiz-Aguirre, A.; Berruti, I.; et al. Biomass derivatives photoreforming in pilot plant scale to obtain H2 under green conditions by using ball milling Cu2O-TiO2 P25 photocatalysts. Chem. Eng. J. 2025, 504, 158585.
31. Hippargi, G.; Anjankar, S.; Krupadam, R. J.; Rayalu, S. S. Simultaneous wastewater treatment and generation of blended fuel methane and hydrogen using Au-Pt/TiO2 photo-reforming catalytic material. Fuel 2021, 291, 120113.
32. Alshehri, A.; Narasimharao, K. PtOx-TiO2 anatase nanomaterials for photocatalytic reformation of methanol to hydrogen: effect of TiO2 morphology. J. Mater. Res. Technol. 2020, 9, 14907-21.
33. Lan, L.; Daly, H.; Jiao, Y.; Yan, Y.; Hardacre, C.; Fan, X. Comparative study of the effect of TiO2 support composition and Pt loading on the performance of Pt/TiO2 photocatalysts for catalytic photoreforming of cellulose. Int. J. Hydrogen. Energy. 2021, 46, 31054-66.
34. Umair, M.; Loddo, V.; Palmisano, L.; et al. Investigating the activity of modified TiO2 photocatalysts used for the photoreforming of biomass derivatives. J. Photochem. Photobiol. A. Chem. 2024, 453, 115654.
35. Iervolino, G.; Vaiano, V.; Sannino, D.; Rizzo, L.; Palma, V. Enhanced photocatalytic hydrogen production from glucose aqueous matrices on Ru-doped LaFeO3. Appl. Catal. B. Environ. 2017, 207, 182-94.
36. Wei, Z.; Liu, J.; Fang, W.; Qin, Z.; Jiang, Z.; Shangguan, W. A visible-light driven novel layered perovskite oxyhalide Bi4MO8X (M = Nb, Ta; X = Cl, Br) constructed using BiOX (X = Cl, Br) for enhanced photocatalytic hydrogen evolution. Catal. Sci. Technol. 2018, 8, 3774-84.
37. López-Vásquez, A.; Delgado-Niño, P.; Salas-Siado, D. Photocatalytic hydrogen production by strontium titanate-based perovskite doped europium (Sr0.97Eu0.02Zr0.1Ti0.9O3). Environ. Sci. Pollut. Res. 2018, 26, 4202-14.
38. Umair, M.; Palmisano, L.; Bellardita, M. Comparison between the efficiency of bare and Pt-loaded TiO2 and ZnIn2S4 for H2 production in the presence of triethanolamine, methanol, furfuryl alcohol used as sacrificial agents. J. Mol. Struct. 2025, 1340, 142567.
39. Eddy, D. R.; Permana, M. D.; Sakti, L. K.; et al. Heterophase Polymorph of TiO2 (Anatase, Rutile, Brookite, TiO2(B)) for efficient photocatalyst: fabrication and activity. Nanomaterials 2023, 13, 704.
40. Chang, L.; Yong, S.; Chai, S.; Putri, L.; Tan, L.; Mohamed, A. A review of methanol photoreforming: elucidating the mechanisms, photocatalysts and recent advancement strategies. Mater. Today. Chem. 2023, 27, 101334.
41. Barba-Nieto, I.; Caudillo-Flores, U.; Gómez-Cerezo, M. N.; Kubacka, A.; Fernández-García, M. Boosting Pt/TiO2 hydrogen photoproduction through Zr doping of the anatase structure: a spectroscopic and mechanistic study. Chem. Eng. J. 2020, 398, 125665.
42. Musso, M.; Veiga, S.; De León, M. A.; Quevedo, A.; Bussi, J. Hydrogen production from pure and crude glycerol photoreforming using platinum supported on TiO2 and N-TiO2. Mater. Lett. 2024, 357, 135714.
43. Yang, G.; Yan, Z.; Xiao, T. Preparation and characterization of SnO2/ZnO/TiO2 composite semiconductor with enhanced photocatalytic activity. Appl. Surf. Sci. 2012, 258, 8704-12.
44. Wang, W.; Ye, Y.; Li, G.; et al. High-efficiency photocathodic protection performance of novel MnIn2S4/TiO2 n-n heterojunction films for Q235 carbon steel in chloride-containing simulated concrete pore solution. J. Alloys. Compd. 2023, 941, 168957.
45. Kumari, M. A.; Devi, L. G.; Maia, G.; Chen, T.; Al-zaqri, N.; Ali, M. A. Mechanochemical synthesis of ternary heterojunctions TiO2(A)/TiO2(R)/ZnO and TiO2(A)/TiO2(R)/SnO2 for effective charge separation in semiconductor photocatalysis: a comparative study. Environ. Res. 2022, 203, 111841.
46. Ding, M.; Jia, M.; Wang, J. Insights into performance and mechanism of improving methanol photoreforming on the ternary catalysts with p-n junction. Int. J. Hydrogen. Energy. 2025, 98, 67-77.
47. Drobná, H.; Meinhardová, V.; Dubnová, L.; et al. Partially reduced Ni-NiO-TiO2 photocatalysts for hydrogen production from methanol-water solution. Catalysts 2023, 13, 293.
48. Caudillo-Flores, U.; Barba-Nieto, I.; Muñoz-Batista, M. J.; Motta, Meira. D.; Fernández-García, M.; Kubacka, A. Thermo-photo production of hydrogen using ternary Pt-CeO2-TiO2 catalysts: a spectroscopic and mechanistic study. Chem. Eng. J. 2021, 425, 130641.
49. Li, W. L.; Zhang, Q. Q.; Dong, L.; Zhang, W. J.; Lin, L. L.; Chen, Z. P. Selective photosynthesis of imines from biomass-derived aldehydes over Ni/TiO2. Rare. Metals. 2023, 43, 1116-24.
50. Afrin, M. F.; Furukawa, M.; Tateishi, I.; Katsumata, H.; Uzzaman, M.; Kaneco, S. Enhanced photocatalytic hydrogen generation from methanol solutions via in situ Ni/Pt Co-deposition on TiO2. J. Compos. Sci. 2025, 9, 68.
51. Jakimińska, A.; Spilarewicz, K.; Macyk, W. Phototransformations of TiO2/Ag2O composites and their influence on photocatalytic water splitting accompanied by methanol photoreforming. Nanoscale. Adv. 2023, 5, 1926-35.
52. Platero, F.; López-Martín, A.; Caballero, A.; Rojas, T. C.; Nolan, M.; Colón, G. Overcoming Pd-TiO2 deactivation during H2 production from photoreforming using Cu@Pd nanoparticles supported on TiO2. ACS. Appl. Nano. Mater. 2021, 4, 3204-19.
53. Silvaino, P. F.; Ferreira, J. C.; Carminati, S. A.; Vaz, J. M.; Spinacé, E. V. Vinasse photoreforming for hydrogen production using Pt/TiO2 as catalyst under UV irradiation. RSC. Adv. 2025, 15, 5795-800.
54. Piątkowska, A.; Janus, M.; Szymański, K.; Mozia, S. C-,N- and S-doped TiO2 Photocatalysts: a review. Catalysts 2021, 11, 144.
55. Rani, S.; Singh, S.; Pal, B. Core-shell structure of reduced graphene oxide@Ag-TiO2 for photocatalytic H2O splitting and CH3OH dehydrogenation under UV light irradiation. Int. J. Hydrogen. Energy. 2024, 49, 910-24.
56. Bu, E.; Chen, X.; López-Cartes, C.; et al. Effect of the TiO2-carbon interface on charge transfer and ethanol photo-reforming. Catal. Today. 2023, 422, 114220.
57. De Souza Niero, A. L.; Mozzaquatro Pasini, S.; Daguer, P. H.; et al. Structured macroporous Brown TiO2-SiC catalysts for ethanol-water photoreforming under visible light for hydrogen production. Int. J. Hydrogen. Energy. 2025, 140, 26-35.
58. Šalipur, H.; Fronczak, M.; Prašnikar, A.; et al. Metal doped TiO2 decorated carbon nanostructured materials as an emerging photocatalysts for solar fuels production. Catal. Today. 2024, 436, 114724.
59. Mansoor, S.; Hu, Z.; Zhang, Y.; et al. Simultaneous hydrogen production with photo reforming of lactic acid over MXene derived MoS2/TiO2/Ti3C2 nanowires. Chin. J. Catal. 2025, 71, 234-45.
60. Lang, M.; Klahn, M.; Strunk, J. Supported titanium oxide species as photocatalysts in 2-propanol oxidation: linking selectivity to structural and electronic properties. Appl. Surf. Sci. 2023, 611, 155623.
61. Shi, C.; Eqi, M.; Shi, J.; Huang, Z.; Qi, H. Constructing 3D hierarchical TiO2 microspheres with enhanced mass diffusion for efficient glucose photoreforming under modulated reaction conditions. J. Colloid. Interface. Sci. 2023, 650, 1736-48.
62. Al-madanat, O.; Curti, M.; Günnemann, C.; Alsalka, Y.; Dillert, R.; Bahnemann, D. W. TiO2 photocatalysis: impact of the platinum loading method on reductive and oxidative half-reactions. Catal. Today. 2021, 380, 3-15.
63. Chen, W.; Dong, Y.; Yadav, P.; Aughterson, R. D.; Sun-Waterhouse, D.; Waterhouse, G. I. Effect of alcohol sacrificial agent on the performance of Cu/TiO2 photocatalysts for UV-driven hydrogen production. Appl. Catal. A. Gen. 2020, 602, 117703.
64. Cwieka, K.; Bojarska, Z.; Czelej, K.; et al. Zero carbon footprint hydrogen generation by photoreforming of methanol over Cu/TiO2 nanocatalyst. Chem. Eng. J. 2023, 474, 145687.
65. Piedra-López, J.; Calzada, L. A.; Guerra-Blanco, P.; et al. Enhancing photocatalytic H2 production and dye degradation: comparative analysis of gold reduction techniques on Au/TiO2 nanocomposites. Catal. Today. 2024, 432, 114610.
66. Courtois, C.; Walenta, C. A.; Tschurl, M.; Heiz, U.; Friend, C. M. Regulating photochemical selectivity with temperature: isobutanol on TiO2(110). J. Am. Chem. Soc. 2020, 142, 13072-80.
67. Wu, W.; Liu, B.; Qiu, X.; et al. Modulating oxygen vacancy in Pt/TiO2 for thermo-photo reforming lignin and its derivatives to H2 and value-added product. ACS. Sustain. Chem. Eng. 2024, 12, 9027-36.
68. Eqi, M.; Shi, C.; Xie, J.; et al. Synergetic effect of Ni-Au bimetal nanoparticles on urchin-like TiO2 for hydrogen and arabinose co-production by glucose photoreforming. Adv. Compos. Hybrid. Mater. 2022, 6, 5.
69. Zhao, H.; Liu, P.; Wu, X.; et al. Plasmon enhanced glucose photoreforming for arabinose and gas fuel co-production over 3DOM TiO2-Au. App. Catal. B. Environ. 2021, 291, 120055.
70. Zhao, H.; Li, C.; Liu, L.; et al. n-p Heterojunction of TiO2-NiO core-shell structure for efficient hydrogen generation and lignin photoreforming. J. Colloid. Interface. Sci. 2021, 585, 694-704.
71. Ding, M.; Wang, J. Photocatalytic reforming of ethanol to produce hydrogen: effect of anatase doped with NiO on products and reaction pathways. Int. J. Hydrogen. Energy. 2024, 56, 92-101.
72. Pecoraro, C. M.; Bellardita, M.; Loddo, V.; Di Franco, F.; Palmisano, L.; Santamaria, M. A facile way to synthesize noble metal free TiO2 based catalysts for glycerol photoreforming. J. Ind. Eng. Chem. 2023, 118, 247-58.
73. Liu, R.; Yin, H.; Guo, P.; Liu, X.; Yin, Z. Photoreforming light alcohols for value-added resources: a mini review. Energy. Technol. 2024, 13, 2301708.
74. Walenta, C. A.; Tschurl, M.; Heiz, U. Introducing catalysis in photocatalysis: what can be understood from surface science studies of alcohol photoreforming on TiO2. J. Phys. Condens. Matter. 2019, 31, 473002.
75. Garcia-Muñoz, P.; Fresno, F. Oxidation of alcohols in photocatalytic hydrogen production: from sacrifice to valorization. Curr. Opin. Chem. Eng. 2025, 49, 101146.
76. Yao, Y.; Gao, X.; Li, Z.; Meng, X. Photocatalytic reforming for hydrogen evolution: a review. Catalysts 2020, 10, 335.
77. Zhu, B.; Dong, B.; Wang, F.; et al. Unraveling a bifunctional mechanism for methanol-to-formate electro-oxidation on nickel-based hydroxides. Nat. Commun. 2023, 14, 1686.
78. Miyake, M. An electrochemical study of the photocatalytic oxidation of methanol on rutile. J. Catal. 1979, 58, 22-7.
79. Kawai, T.; Sakata, T. Photocatalytic hydrogen production from liquid methanol and water. J. Chem. Soc. Chem. Commun. 1980, 694-5.
80. Kruczynski, L.; Gesser, H. D.; Turner, C. W.; Speers, E. A. Porous titania glass as a photocatalyst for hydrogen production from water. Nature 1981, 291, 399-401.
81. Kawai, M.; Naito, S.; Tamaru, K.; Kawai, T. The mechanism of photocatalytic hydrogen production from gaseous methanol and water: IR spectroscopic approach. Chem. Phys. Lett. 1983, 98, 377-80.
82. Lindan, P. J. D.; Harrison, N. M.; Gillan, M. J.; White, J. A. First-principles spin-polarized calculations on the reduced and reconstructed TiO2(110) surface. Phys. Rev. B. 1997, 55, 15919-27.
83. Chrétien, S.; Metiu, H. Electronic structure of partially reduced rutile TiO2(110) surface: where are the unpaired electrons located? J. Phys. Chem. C. 2011, 115, 4696-705.
84. Ichihara, F.; Pang, H.; Kako, T.; Bahnemann, D. W.; Ye, J. Photogenerated charge carrier dynamics on Pt-loaded SrTiO3 nanoparticles studied via transient-absorption spectroscopy. Nanoscale 2025, 17, 2567-76.
85. Ma, J.; Miao, T. J.; Tang, J. Charge carrier dynamics and reaction intermediates in heterogeneous photocatalysis by time-resolved spectroscopies. Chem. Soc. Rev. 2022, 51, 5777-94.
86. Qian, R.; Zong, H.; Schneider, J.; et al. Charge carrier trapping, recombination and transfer during TiO2 photocatalysis: an overview. Catal. Today. 2019, 335, 78-90.
87. Park, C.; Cho, K. R.; Fujitsuka, M.; et al. Time-resolved spectroelectrochemical observation of overlayer-induced charge carrier dynamics in water photooxidation. Angew. Chem. Int. Ed. 2025, 64, e202502805.
88. Miao, T. J.; Tang, J. Characterization of charge carrier behavior in photocatalysis using transient absorption spectroscopy. J. Chem. Phys. 2020, 152, 194201.
89. Lai, T. H.; Katsumata, K. I.; Hsu, Y. J. In situ charge carrier dynamics of semiconductor nanostructures for advanced photoelectrochemical and photocatalytic applications. Nanophotonics 2020, 10, 777-95.
90. Tamaki, Y.; Furube, A.; Murai, M.; Hara, K.; Katoh, R.; Tachiya, M. Dynamics of efficient electron-hole separation in TiO2 nanoparticles revealed by femtosecond transient absorption spectroscopy under the weak-excitation condition. Phys. Chem. Chem. Phys. 2007, 9, 1453-60.
91. Hoffmann, M. R.; Martin, S. T.; Choi, W.; Bahnemann, D. W. Environmental applications of semiconductor photocatalysis. Chem. Rev. 2002, 95, 69-96.
92. Kohtani, S.; Kawashima, A.; Miyabe, H. Reactivity of trapped and accumulated electrons in titanium dioxide photocatalysis. Catalysts 2017, 7, 303.
93. Schneider, J.; Matsuoka, M.; Takeuchi, M.; et al. Understanding TiO2 photocatalysis: mechanisms and materials. Chem. Rev. 2014, 114, 9919-86.
94. Tamaki, Y.; Furube, A.; Murai, M.; Hara, K.; Katoh, R.; Tachiya, M. Direct observation of reactive trapped holes in TiO2 undergoing photocatalytic oxidation of adsorbed alcohols: evaluation of the reaction rates and yields. J. Am. Chem. Soc. 2005, 128, 416-7.
95. Walle, L. E.; Borg, A.; Uvdal, P.; Sandell, A. Experimental evidence for mixed dissociative and molecular adsorption of water on a rutile TiO2(110) surface without oxygen vacancies. Phys. Rev. B. 2009, 80, 235436.
96. Muir, J. N.; Choi, Y.; Idriss, H. Computational study of ethanol adsorption and reaction over rutile TiO2(110) surfaces. Phys. Chem. Chem. Phys. 2012, 14, 11910.
97. Panayotov, D. A.; Burrows, S. P.; Morris, J. R. Photooxidation mechanism of methanol on rutile TiO2 nanoparticles. J. Phys. Chem. C. 2012, 116, 6623-35.
98. Hykaway, N.; Sears, W. M.; Morisaki, H.; Morrison, S. R. Current-doubling reactions on titanium dioxide photoanodes. J. Phys. Chem. 2002, 90, 6663-7.
99. Shen, M.; Henderson, M. A. Role of water in methanol photochemistry on rutile TiO2(110). J. Phys. Chem. C. 2012, 116, 18788-95.
100. Asmus, K. D.; Moeckel, H.; Henglein, A. Pulse radiolytic study of the site of hydroxyl radical attack on aliphatic alcohols in aqueous solution. J. Phys. Chem. 2002, 77, 1218-21.
101. Lilie, J.; Beck, G.; Henglein, A. Pulsradiolyse und Polarographie: Halbstufenpotentiale für die Oxydation und Reduktion von kurzlebigen organischen Radikalen an der Hg-Elektrode. Ber. Bunsenges. Phys. Chem. 2014, 75, 458-65.
102. Xia, S.; Wang, T.; Ren, Z.; Yang, X.; Guo, Q.; Zhou, C. Adsorption structure-activity correlation in the photocatalytic chemistry of methanol and water on TiO2(110). Acc. Chem. Res. 2024, 57, 3407-18.
103. Dong, S.; Hu, J.; Xia, S.; et al. Origin of the adsorption-state-dependent photoactivity of methanol on TiO2(110). ACS. Catal. 2021, 11, 2620-30.
104. Setvin, M.; Shi, X.; Hulva, J.; et al. Methanol on anatase TiO2 (101): mechanistic insights into photocatalysis. ACS. Catal. 2017, 7, 7081-91.
105. Liu, H.; Liu, M.; Nakamura, R.; Tachibana, Y. Primary photocatalytic water reduction and oxidation at an anatase TiO2 and Pt-TiO2 nanocrystalline electrode revealed by quantitative transient absorption studies. Appl. Catal. B. Environ. 2021, 296, 120226.
106. Patrocinio, A. O. T.; Schneider, J.; França, M. D.; et al. Charge carrier dynamics and photocatalytic behavior of TiO2 nanopowders submitted to hydrothermal or conventional heat treatment. RSC. Adv. 2015, 5, 70536-45.
107. Kandiel, T. A.; Ivanova, I.; Bahnemann, D. W. Long-term investigation of the photocatalytic hydrogen production on platinized TiO2: an isotopic study. Energy. Environ. Sci. 2014, 7, 1420.
108. Mandelbaum, P. A.; Regazzoni, A. E.; Blesa, M. A.; Bilmes, S. A. Photo-electro-oxidation of alcohols on titanium dioxide thin film electrodes. J. Phys. Chem. B. 1999, 103, 5505-11.
109. Ahmed, A. Y.; Kandiel, T. A.; Ivanova, I.; Bahnemann, D. Photocatalytic and photoelectrochemical oxidation mechanisms of methanol on TiO2 in aqueous solution. Appl. Surf. Sci. 2014, 319, 44-9.
110. Hao, Q.; Wang, Z.; Wang, T.; Ren, Z.; Zhou, C.; Yang, X. Role of Pt loading in the photocatalytic chemistry of methanol on rutile TiO2(110). ACS. Catal. 2018, 9, 286-94.
111. Walenta, C. A.; Courtois, C.; Kollmannsberger, S. L.; Eder, M.; Tschurl, M.; Heiz, U. Surface species in photocatalytic methanol reforming on Pt/TiO2(110): learning from surface science experiments for catalytically relevant conditions. ACS. Catal. 2020, 10, 4080-91.
112. Kollmannsberger, S. L.; Walenta, C. A.; Courtois, C.; Tschurl, M.; Heiz, U. Thermal control of selectivity in photocatalytic, water-free alcohol photoreforming. ACS. Catal. 2018, 8, 11076-84.
113. Kandiel, T. A.; Dillert, R.; Robben, L.; Bahnemann, D. W. Photonic efficiency and mechanism of photocatalytic molecular hydrogen production over platinized titanium dioxide from aqueous methanol solutions. Catal. Today. 2011, 161, 196-201.
114. Eder, M.; Tschurl, M.; Heiz, U. Toward a comprehensive understanding of photocatalysis: what systematic studies and alcohol surface chemistry on TiO2(110) have to offer for future developments. J. Phys. Chem. Lett. 2023, 14, 6193-201.
115. Courtois, C.; Eder, M.; Kollmannsberger, S. L.; Tschurl, M.; Walenta, C. A.; Heiz, U. Origin of poisoning in methanol photoreforming on TiO2(110): the importance of thermal back-reaction steps in photocatalysis. ACS. Catal. 2020, 10, 7747-52.
116. Wang, Z.; Henderson, M. A.; Lyubinetsky, I. Origin of coverage dependence in photoreactivity of carboxylate on TiO2(110): hindering by charged coadsorbed hydroxyls. ACS. Catal. 2015, 5, 6463-7.
117. Yamazaki, Y.; Toyonaga, T.; Doshita, N.; et al. Crystal facet engineering and hydrogen spillover-assisted synthesis of defective Pt/TiOx nanorods with enhanced visible light-driven photocatalytic activity. ACS. Appl. Mater. Interfaces. 2021, 14, 2291-300.
118. Hejazi, S. M. H.; Shahrezaei, M.; Błoński, P.; et al. Defect engineering over anisotropic brookite toward substrate-specific photo-oxidation of alcohols. Chem. Catal. 2022, 2, 1177-90.
119. Eder, M.; Courtois, C.; Petzoldt, P.; Mackewicz, S.; Tschurl, M.; Heiz, U. Size and coverage effects of Ni and Pt Co-catalysts in the photocatalytic hydrogen evolution from methanol on TiO2(110). ACS. Catal. 2022, 12, 9579-88.
120. Kennedy, J.; Hayward, J.; Davies, P. R.; Bowker, M. Hydrogen production by the photoreforming of methanol and the photocatalytic water-gas shift reaction. J. Phys. Energy. 2021, 3, 024007.
121. Chiarello, G. L.; Bernareggi, M.; Selli, E. Redox dynamics of Pt and Cu nanoparticles on TiO2 during the photocatalytic oxidation of methanol under aerobic and anaerobic conditions studied by in situ modulated excitation X-ray absorption spectroscopy. ACS. Catal. 2022, 12, 12879-89.
122. Muscetta, M.; Clarizia, L.; Race, M.; Andreozzi, R.; Marotta, R.; Di Somma, I. Visible-light driven systems: effect of the parameters affecting hydrogen production through photoreforming of organics in presence of Cu2O/TiO2 nanocomposite photocatalyst. Appl. Sci. 2023, 13, 2337.
123. Clarizia, L.; Spasiano, D.; Di Somma, I.; Marotta, R.; Andreozzi, R.; Dionysiou, D. D. Copper modified-TiO2 catalysts for hydrogen generation through photoreforming of organics. A short review. Int. J. Hydrogen. Energy. 2014, 39, 16812-31.
124. Christoforidis, K. C.; Fornasiero, P. Photocatalysis for hydrogen production and CO2 reduction: the case of copper-catalysts. ChemCatChem 2018, 11, 368-82.
125. Shams Ghamsari, Z.; Bashiri, H. Hydrogen production through photoreforming of methanol by Cus/TiO2 nanocatalyst: optimization and simulation. Surf. Interfaces. 2020, 21, 100709.
126. Plascencia-Hernández, F.; Albiter, E.; Mohamed Nawfal, G.; et al. Unraveling the effect of low Cu2O loading on P25 TiO2 and its self-reduction during methanol photoreforming. Inorg. Chem. Commun. 2023, 158, 111541.
127. Khan, A.; Le Pivert, M.; Ranjbari, A.; et al. Cu-based MOF/TiO2 composite nanomaterials for photocatalytic hydrogen generation and the role of copper. Adv. Funct. Mater. 2025, 36, 2501736.
128. Nomikos, G. N.; Panagiotopoulou, P.; Kondarides, D. I.; Verykios, X. E. Kinetic and mechanistic study of the photocatalytic reforming of methanol over Pt/TiO2 catalyst. Appl. Catal. B. Environ. 2014, 146, 249-57.
129. Phillips, K. R.; Jensen, S. C.; Baron, M.; Li, S.; Friend, C. M. Sequential photo-oxidation of methanol to methyl formate on TiO2(110). J. Am. Chem. Soc. 2013, 135, 574-7.
130. Coronado, J. M.; Kataoka, S.; Tejedor-Tejedor, I.; Anderson, M. A. Dynamic phenomena during the photocatalytic oxidation of ethanol and acetone over nanocrystalline TiO2: simultaneous FTIR analysis of gas and surface species. J. Catal. 2003, 219, 219-30.
131. Zhang, J.; Toe, C. Y.; Kumar, P.; Scott, J.; Amal, R. Engineering defects in TiO2 for the simultaneous production of hydrogen and organic products. Appl. Catal. B. Environ. Energy. 2023, 333, 122765.
132. Deas, R.; Pearce, S.; Goss, K.; Wang, Q.; Chen, W.; Waterhouse, G. I. Hierarchical Au/TiO2 nanoflower photocatalysts with outstanding performance for alcohol photoreforming under UV irradiation. Appl. Catal. A. Gen. 2020, 602, 117706.
133. Luo, L.; Zhang, T.; Zhang, X.; et al. Enhanced hydrogen production from ethanol photoreforming by site-specific deposition of Au on Cu2O/TiO2 p-n junction. Catalysts 2020, 10, 539.
134. Esteves, M. A.; Fresno, F.; Fernandes, V. R.; Oropeza, F. E.; De La Peña O’shea, V. A.; Rangel, C. TiO2-reduced graphene oxide-Pt nanocomposites for the photogeneration of hydrogen from ethanol liquid and gas phases. Catal. Today. 2021, 380, 41-52.
135. Shahpal, A.; Strunk, J.; Khare, R.; Lercher, J. A. Enhancing photocatalytic hydrogen production: a systematic approach to improving g-C3N4/TiO2 nano-composites. J. Environ. Chem. Eng. 2024, 12, 114803.
136. Šalipur, H.; ManojloviC, D.; MiloševiC, K.; et al. Unraveling the solar and visible light-induced deactivation mechanism of Pt-decorated carbon/TiO2 nanocomposite in photocatalytic hydrogen production. J. Environ. Chem. Eng. 2024, 12, 112862.
137. Roebuck, L.; Daly, H.; Lan, L.; et al. H2 production from the photocatalytic reforming of ethylene glycol: effect of TiO2 crystalline phase on photo-oxidation mechanism. J. Catal. 2025, 442, 115876.
138. El Hakim, S.; Bathias, M.; Chave, T.; Nikitenko, S. I. Influence of butanol isomerization on photothermal hydrogen production over Ti@TiO2 core-shell nanoparticles. Catalysts 2022, 12, 1662.
139. Courtois, C.; Eder, M.; Schnabl, K.; Walenta, C. A.; Tschurl, M.; Heiz, U. Reactions in the photocatalytic conversion of tertiary alcohols on rutile TiO2(110). Angew. Chem. Int. Ed. 2019, 58, 14255-9.
140. Özdemir, P.; Yıldırım, R. Photocatalytic glycerol reforming on Pt, Au and Cu supported by reduced TiO2 under visible light irradiation. Int. J. Hydrogen. Energy. 2024, 52, 283-94.
141. Herrera-Beurnio, M. C.; López-Tenllado, F. J.; Hidalgo-Carrillo, J.; et al. Glycerol photoreforming for photocatalytic hydrogen production on binary and ternary Pt-g-C3N4-TiO2 systems: a comparative study. Catal. Today. 2024, 430, 114548.
142. Oliveira, M. M. R. D.; Sousa, E. J. R.; Silva, A. M. P. D.; Araújo, R. D. S.; Salgado, B. C. B. Construction of photocatalytic plates for hydrogen production from photoreforming of glycerol. Int. J. Hydrogen. Energy. 2023, 48, 28792-802.
143. Tran, N. H.; Kannangara, G. S. K. Conversion of glycerol to hydrogen rich gas. Chem. Soc. Rev. 2013, 42, 9454.
144. Nascimento, L. L.; Carvalho Souza, R. A.; Zacour Marinho, J.; Wang, C.; Patrocinio, A. O. T. Light-driven conversion of biomass-derived compounds into green fuels and chemicals. J. Clean. Prod. 2024, 449, 141709.
145. Nascimento, L. L.; Souza, R. A. C.; Horta, Nunes. P. H.; et al. Photoreforming of real biomass-derived waste streams using Nb-doped BiVO4 photoanodes for sustainable hydrogen production. RSC. Sustain. 2025, 3, 4504-13.
146. Marinho, J. Z.; Nascimento, L. L.; Santos, A. L. R.; Faria, A. M.; Machado, A. E. H.; Patrocinio, A. O. T. On the influence of hydrothermal treatment pH on the performance of Bi2WO6 as photocatalyst in the glycerol photoreforming. Photochem. Photobiol. Sci. 2022, 21, 1659-75.
147. Nascimento, L. L.; Marinho, J. Z.; Dos Santos, A. L. R.; et al. Photoelectrochemical reforming of glycerol by Bi2WO6 photoanodes: role of the electrolyte pH on the H2 evolution efficiency and product selectivity. Appl. Catal. A. Gen. 2022, 646, 118867.
148. Karimi Estahbanati, M. R.; Feilizadeh, M.; Attar, F.; Iliuta, M. C. Current developments and future trends in photocatalytic glycerol valorization: process analysis. React. Chem. Eng. 2021, 6, 197-219.
149. Kozlova, E. A.; Kurenkova, A. Y.; Gerasimov, E. Y.; et al. Comparative study of photoreforming of glycerol on Pt/TiO2 and CuOx/TiO2 photocatalysts under UV light. Mater. Lett. 2021, 283, 128901.
150. Maslova, V.; Quadrelli, E. A.; Gaval, P.; Fasolini, A.; Albonetti, S.; Basile, F. Highly-dispersed ultrafine Pt nanoparticles on microemulsion-mediated TiO2 for production of hydrogen and valuable chemicals via oxidative photo-dehydrogenation of glycerol. J. Environ. Chem. Eng. 2021, 9, 105070.
151. Pecoraro, C. M.; Mino, L.; Kozyr, E.; et al. Pt-TiO2 catalysts for glycerol photoreforming: comparison of anatase, brookite and rutile polymorphs. Chem. Commun. 2024, 60, 3782-5.
152. Escamilla-Mejía, J. C.; Hidalgo-Carrillo, J.; Martín-Gómez, J.; et al. Biochars from olive stones as carbonaceous support in Pt/TiO2-carbon photocatalysts and application in hydrogen production from aqueous glycerol photoreforming. Nanomaterials 2023, 13, 1511.
153. López-Tenllado, F. J.; Estévez, R.; Hidalgo-Carrillo, J.; López-Fernández, S.; Urbano, F. J.; Marinas, A. Hydrogen photo-production from glycerol on platinum, gold and silver-modified TiO2-USY62 catalysts. Catal. Today. 2022, 390-1, 92-8.
154. Escamilla-Mejía, J. C.; Hidalgo-Carrillo, J.; Martín-Gómez, J.; et al. Pt preferential incorporation onto TiO2 in TiO2-carbon composites for hydrogen production from glycerol photoreforming. Catal. Today. 2023, 413-5, 113943.
155. Chen, W.; Chan, A.; Sun-Waterhouse, D.; Llorca, J.; Idriss, H.; Waterhouse, G. I. Performance comparison of Ni/TiO2 and Au/TiO2 photocatalysts for H2 production in different alcohol-water mixtures. J. Catal. 2018, 367, 27-42.
156. Zhong, W.; Wang, C.; Jiang, B.; et al. Investigation on multifunctional Au/TiO2@n-octadecane microcapsules towards catalytic photoreforming hydrogen production and photothermal conversion. Int. J. Hydrogen. Energy. 2022, 47, 41540-52.
157. Balsamo, S. A.; Fiorenza, R.; Iapichino, M. T. A.; Lopez-Tenllado, F. J.; Urbano, F. J.; Sciré, S. H2 production through glycerol photoreforming using one-pot prepared TiO2-rGO-Au photocatalysts. Mol. Catal. 2023, 547, 113346.
158. Majeed, I.; Arif, A.; Idrees, A.; et al. Synergistic effect of Pd co-catalyst and rGO-TiO2 hybrid support for enhanced photoreforming of oxygenates. Hydrogen 2023, 4, 192-209.
159. Martín-Gómez, J.; Reca-Expósito, S.; López-Tenllado, F. J.; Hidalgo-Carrillo, J.; Marinas, A.; Urbano, F. J. Synthesis of Fe-TiO2 and Cu-TiO2 based materials by olive leaves biotemplating—application to hydrogen production from glycerol photoreforming. Nanomaterials 2023, 13, 664.
160. Wang, M.; Liu, M.; Lu, J.; Wang, F. Photo splitting of bio-polyols and sugars to methanol and syngas. Nat. Commun. 2020, 11, 1083.
161. Clarizia, L.; Vitiello, G.; Pallotti, D. K.; et al. Effect of surface properties of copper-modified commercial titanium dioxide photocatalysts on hydrogen production through photoreforming of alcohols. Int. J. Hydrogen. Energy. 2017, 42, 28349-62.
162. Martín-Gómez, J.; Escamilla, J. C.; Hidalgo-Carrillo, J.; et al. Influence of sacrificial agent on Cu photodeposition over TiO2/MCH composites for photocatalytic hydrogen production. Catal. Today. 2023, 413-5, 113928.
163. Martín-Gómez, J.; Hidalgo-Carrillo, J.; Estévez, R. C.; Urbano, F. J.; Marinas, A. Hydrogen photoproduction on TiO2-CuO artificial olive leaves. Appl. Catal. A. Gen. 2021, 620, 118178.
164. Villachica-Llamosas, J.; Ruiz-Aguirre, A.; Colón, G.; Peral, J.; Malato, S. CuO-TiO2 pilot-plant system performance for solar photocatalytic hydrogen production. Int. J. Hydrogen. Energy. 2024, 51, 1069-77.
165. Martín-Gómez, J.; Hidalgo-Carrillo, J.; Montes, V.; et al. EPR and CV studies cast further light on the origin of the enhanced hydrogen production through glycerol photoreforming on CuO:TiO2 physical mixtures. J. Environ. Chem. Eng. 2021, 9, 105336.
166. Segovia-Guzmán, M. O.; Román-Aguirre, M.; Verde-Gomez, J. Y.; Collins-Martínez, V. H.; Zaragoza-Galán, G.; Ramos-Sánchez, V. H. Green Cu2O/TiO2 heterojunction for glycerol photoreforming. Catal. Today. 2020, 349, 88-97.
167. Villachica-Llamosas, J.; Ruiz-Aguirre, A.; Colón, G.; Peral, J.; Malato, S. H2 production based on a ternary mixture of commercial CuO-NiO-TiO2 in a solar pilot plant. Catal. Today. 2024, 431, 114608.
168. Eisapour, M.; Zhao, H.; Zhao, J.; et al. p-n heterojunction of nickel oxide on titanium dioxide nanosheets for hydrogen and value-added chemicals coproduction from glycerol photoreforming. J. Colloid. Interface. Sci. 2023, 647, 255-63.
169. Eisapour, M.; Huang, R.; Roostaei, T.; Zhao, H.; Hu, J.; Chen, Z. Sandwich-like heterojunction of NiO-Ni-TiO2 for simultaneous production of hydrogen and value-added products from glycerol photoreforming. Environ. Surf. Interfaces. 2025, 3, 46-54.
170. Liu, J.; Zhou, Y.; Fan, Y.; et al. Regulating the local electronic structure by constructing Ni-O-Ni sites confined in TiO2 for selective photocatalytic glycerol reforming. J. Energy. Chem. 2025, 108, 129-37.
171. Falara, P. P.; Antoniadou, M.; Zourou, A.; Sakellis, E.; Kordatos, K. V. Carbon dot-titanium dioxide (CD/TiO2) nanocomposites: reusable photocatalyst for sustainable H2 production via photoreforming of green organic compounds. Coatings 2024, 14, 131.
172. Escamilla, J. C.; Hidalgo-Carrillo, J.; Martín-Gómez, J.; et al. Hydrogen production through glycerol photoreforming on TiO2/mesoporous carbon: influence of the synthetic method. Materials 2020, 13, 3800.
173. Kobayashi, A. Photoredox cascade catalyst for efficient hydrogen production with biomass photoreforming. Angew. Chem. Int. Ed. 2023, 62, e202313014.
174. Panagiotopoulou, P.; Karamerou, E. E.; Kondarides, D. I. Kinetics and mechanism of glycerol photo-oxidation and photo-reforming reactions in aqueous TiO2 and Pt/TiO2 suspensions. Catal. Today. 2013, 209, 91-8.
175. Hu, Y.; Qian, Q.; Wang, J.; Cao, F.; Shen, Y. TiO2-mediated photoreforming of glycerol to formic acid in acetonitrile-free aqueous solutions: mechanism of crystal phase-regulated oxygen radicals influencing photoreforming. Chem. Eng. J. 2025, 524, 169428.
176. Villachica-Llamosas, J.; Sowik, J.; Ruiz-Aguirre, A.; Colón, G.; Peral, J.; Malato, S. Photoreforming of glycerol to produce hydrogen from natural water in a compound parabolic collector solar photoreactor. J. Environ. . Chem. Eng. 2023, 11, 111216.
177. Toledo-Camacho, S.; Rey, A.; Maldonado, M.; Llorca, J.; Contreras, S.; Medina, F. Photocatalytic hydrogen production from water-methanol and -glycerol mixtures using Pd/TiO2(-WO3) catalysts and validation in a solar pilot plant. Int. J. Hydrogen. Energy. 2021, 46, 36152-66.
178. Li, P.; Zhang, B. Photocatalytic conversion of biomass and nitrate into glycine. ACS. Catal. 2024, 14, 18345-53.
179. Granone, L. I.; Sieland, F.; Zheng, N.; Dillert, R.; Bahnemann, D. W. Photocatalytic conversion of biomass into valuable products: a meaningful approach? Green. Chem. 2018, 20, 1169-92.
180. Nwosu, U.; Wang, A.; Palma, B.; et al. Selective biomass photoreforming for valuable chemicals and fuels: a critical review. Renew. Sustain. Energy. Rev. 2021, 148, 111266.
181. Zhao, H.; Liu, J.; Zhong, N.; et al. Biomass photoreforming for hydrogen and value-added chemicals co-production on hierarchically porous photocatalysts. Adv. Energy. Mater. 2023, 13, 2300257.
182. Liu, K.; Ma, J.; Yang, X.; et al. Boosting electron kinetics of anatase TiO2 with carbon nanosheet for efficient photo-reforming of xylose into biomass-derived organic acids. J. Alloys. Compd. 2022, 906, 164276.
183. Lan, L.; Daly, H.; Sung, R.; et al. Mechanistic study of glucose photoreforming over TiO2-based catalysts for H2 production. ACS. Catal. 2023, 13, 8574-87.
184. Zhong, N.; Yu, X.; Zhao, H.; Hu, J.; Gates, I. D. Biomass photoreforming for hydrogen production over hierarchical 3DOM TiO2-Au-CdS. Catalysts 2022, 12, 819.
185. Bahadori, E.; Ramis, G.; Zanardo, D.; et al. Photoreforming of glucose over CuO/TiO2. Catalysts 2020, 10, 477.
186. Belda-Marco, S.; Lillo-Ródenas, M. A.; Román-Martínez, M. C. H2 production by cellulose photoreforming with TiO2-Cu photocatalysts bearing different Cu species. Catal. Today. 2023, 413-5, 113945.
187. Belda-Marco, S.; Lillo-Ródenas, MÁ.; Román-Martínez, M. C. Optimization of active sites in TiO2-Cu photocatalysts for H2 generation via cellulose photo-reforming. ChemCatChem 2025, 17, e202500250.
