期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 896, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2021.162931
关键词
Carbon nitride; Tungsten oxide; Hydrogen evolution; Photocatalysis; Heterostructure
资金
- National Natural Science Foundation of China [21805003, 51974011, 51621003]
- Beijing Municipal Great Wall Scholar Training Plan Project [CITTCD20190307]
A facile hydrothermal method was developed to prepare a heterogeneous photocatalyst by decorating nanorod-assembled orbicular WO3.0.5 H2O on porous carbon nitride nanosheets. The catalyst shows enhanced photo-catalytic performance with a hydrogen generation rate significantly higher than that of pristine graphite carbon nitride, providing a new opportunity for exploring advanced catalysts with superior properties for renewable energy utilization.
Here a facile hydrothermal method was developed to prepare heterogeneous photocatalyst constructed by decorating nanorod-assembled orbicular WO3.0.5 H2O on the surface of porous carbon nitride nanosheets. By integrating two martials with synergetic effect according to their bandgap structure, as-obtained catalyst exhibits well-suppressed recombination of the photoexcited carriers by formation of Z-scheme bandgap structure. It, together with the increased surface areas, contributes to the significantly improved photo-catalytic performance. As a result, the heterogeneous photocatalyst reveals a hydrogen generation rate of 3100 mu mol.g(-1)h(-1) under visible light irradiation, accounting for an approximately 16 times higher than that of pristine graphite carbon nitride. Accordingly, as proposed strategy provides a new opportunity to explore advanced catalysts with superior properties for renewable energy utilization. (C) 2021 Elsevier B.V. All rights reserved.
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