From seawater to hydrogen via direct photocatalytic vapor splitting: A review on device design and system integration
Hongxia LI1, Khaja WAHAB AHMED2, Mohamed A. ABDELSALAM3, Michael FOWLER2, Xiao-Yu WU4()
1. Technology Innovation Institute, Masdar City, Abu Dhabi 9639, United Arab Emirates 2. Department of Chemical Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada 3. Department of Mechanical and Nuclear Engineering, Khalifa University of Science and Technology, Abu Dhabi 127788, United Arab Emirates 4. Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada
Solar-driven hydrogen production from seawater attracts great interest for its emerging role in decarbonizing global energy consumption. Given the complexity of natural seawater content, photocatalytic vapor splitting offers a low-cost and safe solution, but with a very low solar-to-hydrogen conversion efficiency. With a focus on cutting-edge photothermal–photocatalytic device design and system integration, the recent research advances on vapor splitting from seawater, as well as industrial implementations in the past decades were reviewed. In addition, the design strategies of the key processes were reviewed, including vapor temperature and pressure control during solar thermal vapor generation from seawater, capillary-fed vaporization with salt repellent, and direct photocatalytic vapor splitting for hydrogen production. Moreover, the existing laboratory-scale and industrial-scale systems, and the integration principles and remaining challenges in the future seawater-to-hydrogen technology were discussed.
. [J]. Frontiers in Energy, 2024, 18(3): 291-307.
Hongxia LI, Khaja WAHAB AHMED, Mohamed A. ABDELSALAM, Michael FOWLER, Xiao-Yu WU. From seawater to hydrogen via direct photocatalytic vapor splitting: A review on device design and system integration. Front. Energy, 2024, 18(3): 291-307.
Energy Agency International. Global hydrogen review 2021. 2023–10–6, available at website of IEA
2
J N Hausmann, R Schlögl, P W Menezes, et al. Is direct seawater splitting economically meaningful? Energy & Environmental Science, 2021, 14(7): 3679–3685 10.1039/D0EE03659E
3
J Guo, Y Zheng, Z Hu. et al.. Direct seawater electrolysis by adjusting the local reaction environment of a catalyst. Nature Energy, 2023, 8: 264–272 https://doi.org/10.1038/s41560-023-01195-x
4
M A Khan, T Al-Attas, S Roy, et al. Seawater electrolysis for hydrogen production: a solution looking for a problem? Energy & Environmental Science, 2021, 14(9): 4831–4839 10.1039/D1EE00870F
5
C X Kronawitter, L Vayssieres, S Shen. et al.. A perspective on solar-driven water splitting with all-oxide hetero-nanostructures. Energy & Environmental Science, 2011, 4(10): 3889–3899 https://doi.org/10.1039/c1ee02186a
6
S XuB Yu. Current development and prospect of hydrogen energy technology in China. Journal of Beijing Institute of Technology (Social Sciences Edition), 2021, 23(6): 1-12 (in Chinese)
7
D M Davenport, A Deshmukh, J R Werber. et al.. High-pressure reverse osmosis for energy-efficient hypersaline brine desalination: Current status, design considerations, and research needs. Environmental Science & Technology Letters, 2018, 5(8): 467–475 https://doi.org/10.1021/acs.estlett.8b00274
A Shaheen, S AlBadi, B Zhuman. et al.. Photothermal air gap membrane distillation for the removal of heavy metal ions from wastewater. Chemical Engineering Journal, 2022, 431(1): 133909 https://doi.org/10.1016/j.cej.2021.133909
10
A Lee, J W Elam, S B Darling. Membrane materials for water purification: Design, development, and application. Environmental Science: Water Research & Technology, 2016, 2(1): 17–42 https://doi.org/10.1039/C5EW00159E
11
T Stoll, G Zafeiropoulos, M N Tsampas. Solar fuel production in a novel polymeric electrolyte membrane photoelectrochemical (PEM-PEC) cell with a web of titania nanotube arrays as photoanode and gaseous reactants. International Journal of Hydrogen Energy, 2016, 41(40): 17807–17817 https://doi.org/10.1016/j.ijhydene.2016.07.230
12
H Döscher, J F Geisz, T G Deutsch. et al.. Sunlight absorption in water-efficiency and design implications for photoelectrochemical devices. Energy & Environmental Science, 2014, 7(9): 2951–2956 https://doi.org/10.1039/C4EE01753F
13
C S Gopinath, N Nalajala. A scalable and thin film approach for solar hydrogen generation: A review on enhanced photocatalytic water splitting. Journal of Materials Chemistry, A.Materials for Energy and Sustainability, 2021, 9(3): 1353–1371 https://doi.org/10.1039/D0TA09619A
14
L Guo, Y Chen, J Su. et al.. Obstacles of solar-powered photocatalytic water splitting for hydrogen production: A perspective from energy flow and mass flow. Energy, 2019, 172: 1079–1086 https://doi.org/10.1016/j.energy.2019.02.050
15
J Zhang, W Hu, S Cao. et al.. Recent progress for hydrogen production by photocatalytic natural or simulated seawater splitting. Nano Research, 2020, 13(9): 2313–2322 https://doi.org/10.1007/s12274-020-2880-z
16
X Pang, S Das, J T Davis. et al.. Membraneless electrolyzers for low-cost hydrogen production. ECS Meeting Abstracts, 2020, MA2020(1): 1587 https://doi.org/10.1149/MA2020-01371587mtgabs
17
Y Yao, X Gao, X Meng. Recent advances on electrocatalytic and photocatalytic seawater splitting for hydrogen evolution. International Journal of Hydrogen Energy, 2021, 46(13): 9087–9100 https://doi.org/10.1016/j.ijhydene.2020.12.212
18
A S Alketbi, A Raza, M Sajjad. et al.. Direct solar vapor generation with micro-3D printed hydrogel device. EcoMat, 2022, 4(1): 12157 https://doi.org/10.1002/eom2.12157
19
F Tao, M Green, A V Garcia. et al.. Recent progress of nanostructured interfacial solar vapor generators. Applied Materials Today, 2019, 17: 45–84 https://doi.org/10.1016/j.apmt.2019.07.011
20
L Zhou, X Li, G W Ni. et al.. The revival of thermal utilization from the Sun: Interfacial solar vapor generation. National Science Review, 2019, 6(3): 562–578 https://doi.org/10.1093/nsr/nwz030
21
L Zhu, M Gao, C K N Peh. et al.. Recent progress in solar-driven interfacial water evaporation: Advanced designs and applications. Nano Energy, 2019, 57: 507–518 https://doi.org/10.1016/j.nanoen.2018.12.046
22
H He, Z Song, Y Lan. et al.. Photocorrosion-based BiOCl photothermal materials for synergistic solar-driven desalination and photoelectrochemistry energy storage and release. ACS Applied Materials & Interfaces, 2023, 15(14): 17947–17956 https://doi.org/10.1021/acsami.3c01277
23
Y Goto, T Hisatomi, Q Wang. et al.. A particulate photocatalyst water-splitting panel for large-scale solar hydrogen generation. Joule, 2018, 2(3): 509–520 https://doi.org/10.1016/j.joule.2017.12.009
24
T Hisatomi, K Maeda, K Takanabe. et al.. Aspects of the water splitting mechanism on (Ga1–xZnx)(N1–xOx) photocatalyst modified with Rh2–yCryO3 cocatalyst. Journal of Physical Chemistry C, 2009, 113(51): 21458–21466 https://doi.org/10.1021/jp9079662
25
S Nishioka, F E Osterloh, X Wang. et al.. Photocatalytic water splitting. Nature Reviews Methods Primers, 2023, 31(3): 1–15
26
J M Herrmann. Heterogeneous photocatalysis: fundamentals and applications to the removal of various types of aqueous pollutants. Catalysis Today, 1999, 53(1): 115–129 https://doi.org/10.1016/S0920-5861(99)00107-8
27
M Gao, C K Peh, L Zhu. et al.. Photothermal catalytic gel featuring spectral and thermal management for parallel freshwater and hydrogen production. Advanced Energy Materials, 2020, 10(23): 2000925 https://doi.org/10.1002/aenm.202000925
28
C J Shearer, T Hisatomi, K Domen. et al.. Gas phase photocatalytic water splitting of moisture in ambient air: Toward reagent-free hydrogen production. Journal of Photochemistry and Photobiology A Chemistry, 2020, 401(1): 112757 https://doi.org/10.1016/j.jphotochem.2020.112757
29
T Suguro, F Kishimoto, N Kariya. et al.. A hygroscopic nano-membrane coating achieves efficient vapor-fed photocatalytic water splitting. Nature Communications, 2022, 13(1): 5698 https://doi.org/10.1038/s41467-022-33439-x
30
J M Spurgeon, N S Lewis. Proton exchange membrane electrolysis sustained by water vapor. Energy & Environmental Science, 2011, 4(8): 2993 https://doi.org/10.1039/c1ee01203g
31
Z Li, B Tian, W Zhen. et al.. Inhibition of hydrogen and oxygen recombination using oxygen transfer reagent hemin chloride in Pt/TiO2 dispersion for photocatalytic hydrogen generation. Applied Catalysis B: Environmental, 2017, 203: 408–415 https://doi.org/10.1016/j.apcatb.2016.10.049
32
F Dionigi, P C K Vesborg, T Pedersen. et al.. Gas phase photocatalytic water splitting with Rh2–yCryO3/GaN:ZnO in μ-reactors. Energy & Environmental Science, 2011, 4(8): 2937–2942 https://doi.org/10.1039/c1ee01242h
33
S Guo, X Li, J Li. et al.. Boosting photocatalytic hydrogen production from water by photothermally induced biphase systems. Nature Communications, 2021, 12(1): 1343 https://doi.org/10.1038/s41467-021-21526-4
34
P Cheng, X Quan, S Gong. et al.. Recent analytical and numerical studies on phase-change heat transfer. Advances in Heat Transfer, 2014, 46: 187–248 https://doi.org/10.1016/bs.aiht.2014.08.004
35
H L Zhang, J Baeyens, J Degrève. et al.. Concentrated solar power plants: Review and design methodology. Renewable & Sustainable Energy Reviews, 2013, 22: 466–481 https://doi.org/10.1016/j.rser.2013.01.032
36
L Zhao, B Bhatia, L Zhang. et al.. A passive high-temperature high-pressure solar steam generator for medical sterilization. Joule, 2020, 4(12): 2733–2745 https://doi.org/10.1016/j.joule.2020.10.007
37
O Neumann, A Urban, J Day. et al.. Solar vapor generation enabled by nanoparticles. ACS Nano, 2013, 7, (1): 42–49 https://doi.org/10.1021/nn304948h
38
Zavoico A B. Solar Power Tower Design Basis Document, Revision 0. Sandia National Laboratory Technical Report SAND2001-2100. 2001
39
R Abbas, M J Montes, M Piera. et al.. Solar radiation concentration features in Linear Fresnel Reflector arrays. Energy Conversion and Management, 2012, 54(1): 133–144 https://doi.org/10.1016/j.enconman.2011.10.010
40
G Ni, G Li, S V Boriskina. et al.. Steam generation under one sun enabled by a floating structure with thermal concentration. Nature Energy, 2016, 1(9): 16126 https://doi.org/10.1038/nenergy.2016.126
41
Y Ito, Y Tanabe, J Han. et al.. Multifunctional porous graphene for high-efficiency steam generation by heat localization. Advanced Materials, 2015, 27(29): 4302–4307 https://doi.org/10.1002/adma.201501832
42
H. Ghasemi H, Ni G, Marconnet A M, et al. Solar steam generation by heat localization. Nature Communications, 2014, 5: 449
43
J Fang, J Liu, J Gu. et al.. Hierarchical porous carbonized lotus seedpods for highly efficient solar steam generation. Chemistry of Materials, 2018, 30(18): 6217–6221 https://doi.org/10.1021/acs.chemmater.8b01702
44
A Raza, J Lu, S Alzaim. et al.. Novel receiver-enhanced solar vapor generation: Review and perspectives. Energies, 2018, 11(1): 253 https://doi.org/10.3390/en11010253
45
X Li, J Li, J Lu. et al.. Enhancement of interfacial solar vapor generation by environmental energy. Joule, 2018, 2(7): 1331–1338 https://doi.org/10.1016/j.joule.2018.04.004
46
C Jia, Y Li, Z Yang. et al.. Rich mesostructures derived from natural woods for solar steam generation. Joule, 2017, 1(3): 588–599 https://doi.org/10.1016/j.joule.2017.09.011
47
S He, C Chen, Y Kuang. et al.. Nature-inspired salt resistant bimodal porous solar evaporator for efficient and stable water desalination. Energy & Environmental Science, 2019, 12(5): 1558–1567 https://doi.org/10.1039/C9EE00945K
48
W Li, F Li, D Zhang. et al.. Porous wood-carbonized solar steam evaporator. Wood Science and Technology, 2021, 55(3): 625–637 https://doi.org/10.1007/s00226-021-01270-0
49
J Liang, X Ji, J Han. et al.. Modeling and experimental investigation on a direct steam generation solar collector with flat plate thermal concentration. Energy Exploration & Exploitation, 2020, 38(5): 1879–1892 https://doi.org/10.1177/0144598720922681
50
O Neumann, C Feronti, A D Neumann. et al.. Compact solar autoclave based on steam generation using broadband light-harvesting nanoparticles. Proceedings of the National Academy of Sciences of the United States of America, 2013, 110(29): 11677–11681 https://doi.org/10.1073/pnas.1310131110
51
J Li, M Du, G Lv. et al.. Interfacial solar steam generation enables fast-responsive, energy-efficient, and low-cost off-grid sterilization. Advanced Materials, 2018, 30(49): 1805159 https://doi.org/10.1002/adma.201805159
52
M H Alhosani, H Li, A S Alketbi. et al.. Enhanced liquid propagation and wicking along nanostructured porous surfaces. Advanced Engineering Materials, 2021, 23(7): 2100118 https://doi.org/10.1002/adem.202100118
53
G Vaartstra, L Zhang, Z Lu. et al.. Capillary-fed, thin film evaporation devices. Journal of Applied Physics, 2020, 128(13): 130901 https://doi.org/10.1063/5.0021674
54
Abdelsalam M A. Bio-inspired solar thermal brine treatment with direct vapor generation. Thesis for the Master’s Degree. Abu Dhabi: Khalifa University, 2023
55
K Xu, C Wang, Z Li. et al.. Salt mitigation strategies of solar-driven interfacial desalination. Advanced Functional Materials, 2020, 31(8): 2007855 https://doi.org/10.1002/adfm.202007855
56
Y Xia, Y Kang, Z Wang. et al.. Rational designs of interfacial-heating solar-thermal desalination devices: Recent progress and remaining challenges. Journal of Materials Chemistry, A. Materials for Energy and Sustainability, 2021, 9(11): 6612–6633 https://doi.org/10.1039/D0TA11911C
57
L Zhang, X Li, Y Zhong. et al.. Highly efficient and salt rejecting solar evaporation via a wick-free confined water layer. Nature Communications, 2022, 13(1): 849 https://doi.org/10.1038/s41467-022-28457-8
58
G Ni, S H Zandavi, S M Javid. et al.. A salt-rejecting floating solar still for low-cost desalination. Energy & Environmental Science, 2018, 11(6): 1510–1519 https://doi.org/10.1039/C8EE00220G
59
S M Shalaby, S W Sharshir, A E Kabeel. et al.. Reverse osmosis desalination systems powered by solar energy: Preheating techniques and brine disposal challenges—A detailed review. Energy Conversion and Management, 2022, 251: 114971 https://doi.org/10.1016/j.enconman.2021.114971
60
G A Gebreslase. Review on membranes for the filtration of aqueous based solution: Oil in water emulsion. Journal of Membrane Science & Technology, 2018, 8(2): 1000188 https://doi.org/10.4172/2155-9589.1000188
61
A Deshmukh, C Boo, V Karanikola. et al.. Membrane distillation at the water-energy nexus: Limits, opportunities, and challenges. Energy & Environmental Science, 2018, 11(5): 1177–1196 https://doi.org/10.1039/C8EE00291F
62
Y Wang, J Lee, J R Werber. et al.. Capillary-driven desalination in a synthetic mangrove. Science Advances, 2020, 6(8): eaax5253 https://doi.org/10.1126/sciadv.aax5253
63
Y Yang, H Zhao, Z Yin. et al.. A general salt-resistant hydrophilic/hydrophobic nanoporous double layer design for efficient and stable solar water evaporation distillation. Materials Horizons, 2018, 5(6): 1143–1150 https://doi.org/10.1039/C8MH00386F
64
W Xu, X Hu, S Zhuang. et al.. Flexible and salt resistant Janus absorbers by electrospinning for stable and efficient solar desalination. Advanced Energy Materials, 2018, 8(14): 1702884 https://doi.org/10.1002/aenm.201702884
65
R Hu, J Zhang, Y Kuang. et al.. A Janus evaporator with low tortuosity for long-term solar desalination. Journal of Materials Chemistry, A. Materials for Energy and Sustainability, 2019, 7(25): 15333–15340 https://doi.org/10.1039/C9TA01576K
66
S Gao, X Dong, J Huang. et al.. Bioinspired soot-deposited Janus fabrics for sustainable solar steam generation with salt-rejection. Global Challenges, 2019, 3(8): 1800117 https://doi.org/10.1002/gch2.201800117
67
G Liu, T Chen, J Xu. et al.. Salt-rejecting solar interfacial evaporation. Cell Reports. Physical Science, 2021, 2(1): 100310 https://doi.org/10.1016/j.xcrp.2020.100310
68
T A Cooper, S H Zandavi, G W Ni. et al.. Contactless steam generation and superheating under one sun illumination. Nature Communications, 2018, 9(1): 5086 https://doi.org/10.1038/s41467-018-07494-2
69
A K Menon, I Haechler, S Kaur. et al.. Enhanced solar evaporation using a photo-thermal umbrella for wastewater management. Nature Sustainability, 2020, 3(2): 144–151 https://doi.org/10.1038/s41893-019-0445-5
70
K Domen, S Naito, M Soma. et al.. Photocatalytic decomposition of water vapour on an NiO–SrTiO3 catalyst. Journal of the Chemical Society. Chemical Communications, 1980, (12): 543–544 https://doi.org/10.1039/C39800000543
71
A Fujishima, K Honda. Electrochemical photolysis of water at a semiconductor electrode. Nature, 1972, 238(5358): 37–38 https://doi.org/10.1038/238037a0
72
X Chen, S Shen, L Guo. et al.. Semiconductor-based photocatalytic hydrogen generation. Chemical Reviews, 2010, 110(11): 6503–6570 https://doi.org/10.1021/cr1001645
73
A K Wahab, H Idriss. Study of the photocatalytic reforming and oxidation of Glycerol over Ag–Pd/TiO2. International Journal of Hydrogen Energy, 2024, 52(Part B), 159−171.DOI: 10.1016/j.ijhydene.2023.05.344
74
A K Wahab, M A Nadeem, H Idriss. Hydrogen production during ethylene glycol photoreactions over Ag-Pd/TiO2 at different partial pressures of oxygen. Frontiers in Chemistry, 2019, 7: 476835 https://doi.org/10.3389/fchem.2019.00780
75
W Zhang, K Banerjee-Ghosh, F Tassinari. et al.. Enhanced electrochemical water splitting with chiral molecule-coated Fe3O4 nanoparticles. ACS Energy Letters, 2018, 3(10): 2308–2313 https://doi.org/10.1021/acsenergylett.8b01454
76
J Leduc, Y Goenuellue, P Ghamgosar. et al.. Electronically-coupled phase boundaries in α-Fe2O3/Fe3O4 nanocomposite photoanodes for enhanced water oxidation. ACS Applied Nano Materials, 2019, 2(1): 334–342 https://doi.org/10.1021/acsanm.8b01936
77
F Amano, E Ishinaga, A Yamakata. Effect of particle size on the photocatalytic activity of WO3 particles for water oxidation. Journal of Physical Chemistry C, 2013, 117(44): 22584–22590 https://doi.org/10.1021/jp408446u
78
F Wang, C DiValentin, G Pacchioni. Rational band gap engineering of WO3 photocatalyst for visible light water splitting. ChemCatChem, 2012, 4(4): 476–478 https://doi.org/10.1002/cctc.201100446
M Ni, M K H Leung, D Y C Leung. et al.. A review and recent developments in photocatalytic water-splitting using TiO2 for hydrogen production. Renewable & Sustainable Energy Reviews, 2007, 11(3): 401–425 https://doi.org/10.1016/j.rser.2005.01.009
81
Y Hong, Z Fang, B Yin. et al.. A visible-light-driven heterojunction for enhanced photocatalytic water splitting over Ta2O5 modified g-C3N4 photocatalyst. International Journal of Hydrogen Energy, 2017, 42(10): 6738–6745 https://doi.org/10.1016/j.ijhydene.2016.12.055
82
R Marschall. Semiconductor composites: Strategies for enhancing charge carrier separation to improve photocatalytic activity. Advanced Functional Materials, 2014, 24(17): 2421–2440 https://doi.org/10.1002/adfm.201303214
83
R Qian, H Zong, J Schneider. et al.. Charge carrier trapping, recombination and transfer during TiO2 photocatalysis: An overview. Catalysis Today, 2019, 335: 78–90 https://doi.org/10.1016/j.cattod.2018.10.053
84
C F Fu, X Wu, J Yang. Material design for photocatalytic water splitting from a theoretical perspective. Advanced Materials, 2018, 30(48): 1802106 https://doi.org/10.1002/adma.201802106
85
F Dingenen, S W Verbruggen. Tapping hydrogen fuel from the ocean: A review on photocatalytic, photoelectrochemical and electrolytic splitting of seawater. Renewable and Sustainable Energy Reviews, 2021, 142: 110866 https://doi.org/10.1016/j.rser.2021.110866
86
C C Zhu, T Jiang, H C Yang. et al.. ZnFe2O4 nanoparticles with iron-rich surfaces for enhanced photocatalytic water vapor splitting. Applied Surface Science, 2023, 636: 157842 https://doi.org/10.1016/j.apsusc.2023.157842
87
T Daeneke, N Dahr, P Atkin. et al.. Surface water dependent properties of sulfur-rich molybdenum sulfides: Electrolyteless gas phase water splitting. ACS Nano, 2017, 11(7): 6782–6794 https://doi.org/10.1021/acsnano.7b01632
88
F A Chowdhury, M L Trudeau, H Guo. et al.. A photochemical diode artificial photosynthesis system for unassisted high efficiency overall pure water splitting. Nature Communication, 2018, 9: 1707 https://doi.org/10.1038/s41467-018-04067-1
89
Q Wang, T Hisatomi, Q Jia. et al.. Scalable water splitting on particulate photocatalyst sheets with a solar-to-hydrogen energy conversion efficiency exceeding 1%. Nature Materials, 2016, 15: 611–615 https://doi.org/10.1038/nmat4589
90
K Maeda, K Teramura, D Lu. et al.. Noble-metal/Cr2O3 core/shell nanoparticles as a cocatalyst for photocatalytic overall water splitting. Angewandte Chemie International Edition, 2006, 45(46): 7806–7809 https://doi.org/10.1002/anie.200602473
91
K H Ng, S Y Lai, C K Cheng. et al.. Photocatalytic water splitting for solving energy crisis: Myth, fact or busted?. Chemical Engineering Journal, 2021, 417: 128847 https://doi.org/10.1016/j.cej.2021.128847
92
H Nishiyama, T Yamada, M Nakabayashi. et al.. Photocatalytic solar hydrogen production from water on a 100-m2 scale. Nature, 2021, 598(7880): 304–307 https://doi.org/10.1038/s41586-021-03907-3
93
Z Jin, X Yan, X Hao. Rational design of a novel p-n heterojunction based on 3D layered nanoflower MoSx supported CoWO4 nanoparticles for superior photocatalytic hydrogen generation. Journal of Colloid and Interface Science, 2020, 569: 34–49 https://doi.org/10.1016/j.jcis.2020.02.052
94
R N Bhattacharya, C Y Lee, F H Pollak. et al.. Optical study of amorphous MoS3: Determination of the fundamental energy gap. Journal of Non-Crystalline Solids, 1987, 91(2): 235–242 https://doi.org/10.1016/S0022-3093(87)80306-X
95
M L Tang, D C Grauer, B Lassalle-Kaiser. et al.. Structural and electronic study of an amorphous MoS3 hydrogen-generation catalyst on a quantum-controlled photosensitizer. Angewandte Chemie International Edition, 2011, 50(43): 10203–10207 https://doi.org/10.1002/anie.201104412
96
S Zhang, H Zhao, X Li. et al.. A hierarchical SiPN/CN/MoSx photocathode with low internal resistance and strong light-absorption for solar hydrogen production. Applied Catalysis B: Environmental, 2022, 300: 120758 https://doi.org/10.10:16/j.apcatb.2021.120758
97
S Shin, Z Jin, D H Kwon. et al.. High turnover frequency of hydrogen evolution reaction on amorphous MoS2 thin film directly grown by atomic layer deposition. Langmuir, 2015, 31(3): 1196–1202 https://doi.org/10.1021/la504162u
98
J D Benck, Z Chen, L Y Kuritzky. et al.. Amorphous molybdenum sulfide catalysts for electrochemical hydrogen production: Insights into the origin of their catalytic activity. ACS Catalysis, 2012, 2(9): 1916–1923 https://doi.org/10.1021/cs300451q
99
T Bourgeteau, D Tondelier, B Geffroy. et al.. A H2-evolving photocathode based on direct sensitization of MoS3 with an organic photovoltaic cell. Energy & Environmental Science, 2013, 6(9): 2706 https://doi.org/10.1039/c3ee41321g
100
P Zhou, I A Navid, Y Ma. et al.. Solar-to-hydrogen efficiency of more than 9% in photocatalytic water splitting. Nature, 2023, 613(7942): 66–70 https://doi.org/10.1038/s41586-022-05399-1
101
G N Schrauzer, T D Guth. Photolysis of water and photoreduction of nitrogen on titanium dioxide. Journal of the American Chemical Society, 1977, 99(22): 7189–7193 https://doi.org/10.1021/ja00464a015
102
K Domen, S Naito, T Onishi. et al.. Study of the photocatalytic decomposition of water vapor over a nickel(II) oxide-strontium titanate (SrTiO3) catalyst. ChemInform, 1982, 86(18): 3657–3661
103
W H Lee, C W Lee, G D Cha. et al.. Floatable photocatalytic hydrogel nanocomposites for large-scale solar hydrogen production. Nature Nanotechnology, 2023, 18(7): 754–762 https://doi.org/10.1038/s41565-023-01385-4
104
H Han, K Huang, Y Yao. et al.. Enhanced photocatalytic splitting of photothermally induced water vapor to evolve hydrogen. Chemical Engineering Journal, 2022, 450: 138419 https://doi.org/10.1016/j.cej.2022.138419
105
M Gao, P K N Connor, G W Ho. Plasmonic photothermic directed broadband sunlight harnessing for seawater catalysis and desalination. Energy & Environmental Science, 2016, 9(10): 3151–3160 https://doi.org/10.1039/C6EE00971A
106
C Sansom, K Patchigolla, K Jonnalagadda. et al.. Design of a novel CSP/MED desalination system. In: Proceedings of the 26th International Conference on Concentrating Solar Power and Chemical Energy Systems, Freiburg. New York: AIP Publishing, 2022, 2445(1): 140012 https://doi.org/10.1063/5.0085769
NEOM. NEOM adopts pioneering solar dome technology for sustainable desalination project 2020. 2023-10-6, available at website of NEOM
109
Y Zheng, M Ma, H Shao. Recent advances in efficient and scalable solar hydrogen production through water splitting. Carbon Neutrality, 2023, 2(1): 23 https://doi.org/10.1007/s43979-023-00064-6
S Jenny, M Matsuoka, M Takeuchi. et al.. Understanding TiO2 photocatalysis: Mechanisms and materials. Chemical Reviews, 2014, 114(19): 9919–9986 https://doi.org/10.1021/cr5001892
112
S Patial, V Hasija, P Raizada. et al.. Tunable photocatalytic activity of SrTiO3 for water splitting: Strategies and future scenario. Journal of Environmental Chemical Engineering, 2020, 8(3): 103791 https://doi.org/10.1016/j.jece.2020.103791
113
C Acar, I Dincer, G F Naterer. Review of photocatalytic water-splitting methods for sustainable hydrogen production. International Journal of Energy Research, 2016, 40(11): 1449–1473 https://doi.org/10.1002/er.3549
114
F Mikaeili, T Gilmore, P I Gouma. Photochemical water splitting via transition metal oxides. Catalysts, 2022, 12(11): 1303 https://doi.org/10.3390/catal12111303
115
M Q Yang, M Gao, M Hong. et al.. Visible-to-NIR photon harvesting: Progressive engineering of catalysts for solar-powered environmental purification and fuel production. Advanced Materials, 2018, 30(47): 1802894 https://doi.org/10.1002/adma.201802894
116
L Zhu, M Gao, C K N Peh. et al.. Solar-driven photothermal nanostructured materials designs and prerequisites for evaporation and catalysis applications. Materials Horizons, 2018, 5(3): 323–343 https://doi.org/10.1039/C7MH01064H
117
Tu Y, Zhou J, Lin S, et al. Photomolecular effect leading to water evaporation exceeding thermal limit. 2022, arXiv: 2201. 10385 2022
118
Tu Y, Chen G. Photomolecular effect: Visible light absorption at water-vapor interface. 2022, arXiv:2202.10646 10.48550/arXiv.2202.10646
