Decorating tungsten oxide on g-C3N4 nanosheet as Z-scheme heterogeneous photocatalyst for efficient hydrogen evolution

被引：11

作者：

Che, Haibing ^{[1
,2
]}

Xiao, Liyang ^{[1
]}

Zhou, Wenyuan ^{[1
]}

Zhou, QinQin ^{[1
]}

Li, Hongyi ^{[1
]}

Hu, Peng ^{[1
]}

Wang, Jinshu ^{[1
]}

Chen, Xiaobo ^{[2
]}

Wang, Huanli ^{[2
]}

机构：

[1] Beijing Univ Technol, Fac Mat & Manufacture, Key Lab Adv Funct Mat, Educ Minist China, Beijing 100124, Peoples R China

[2] Univ Missouri, Dept Chem, Kansas City, MO 64110 USA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2022年 / 896卷

基金：

中国国家自然科学基金;

关键词：

Carbon nitride; Tungsten oxide; Hydrogen evolution; Photocatalysis; Heterostructure; GRAPHITIC CARBON NITRIDE; IN-SITU CONSTRUCTION; H-2; EVOLUTION; COMPOSITE; SEPARATION;

D O I：

10.1016/j.jallcom.2021.162931

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页数：8

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