Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 594, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.colsurfa.2020.124653
Keywords
WO3 center dot 0.33H(2)O; g-C3N4/WO3; Nano-pores; Photocatalytic hydrogen generation
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Funding
- Natural Science Foundation of Anhui Province [1808085ME129]
- Major Projects of Natural Science Research in Anhui Colleges and Universities [KJ2018ZD050]
- Outstanding Young Talents Support Program in Colleges and Universities [gxyqZD2018056]
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A novel porous g-C3N4/WO3 photocatalyst was successfully obtained by adopting urea and WO3 center dot 0.33H(2)O as precursor by a simple hydrothermal and calcination method. The structural characteristics, photoelectric properties, and hydrogen generation efficiency of g-C3N4/WO3 were studied. The results shows that best photocatalytic hydrogen generation efficiency of the g-C3N4/WO3 was 963 mu mol(-l )h(-1), it was about 3 times than pure g-C3N4. Hydrated tungsten oxide promotes the formation of porous structure after removing crystal water, and the increased pore volume and pore size provide more reactive activity sites, which contribute to increase the efficiency of hydrogen generation. The mechanism of photocatalytic hydrogen generation was proposed.
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