Enhanced visible-light-driven photocatalytic hydrogen evolution and NO photo-oxidation capacity of ZnO/g-C3N4 with N dopant

被引：32
|
作者：
Liu, Xuecheng [1 ]
Liu, Lin [2 ]
Yao, Zurun [1 ]
Yang, Zhehan [1 ]
Xu, Hui [1 ]
机构：
[1] Chongqing Technol & Business Univ, Coll Environm & Resources, Chongqing Key Lab Catalysis & New Environm Mat, Chongqing 400067, Peoples R China
[2] Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2020年 / 599卷
关键词：
ZnO; Photocatalytic hydrogen production; g-C3N4; Nitrogen dopant; NO photo-oxidation; IN-SITU FABRICATION; ONE-STEP SYNTHESIS; H-2; EVOLUTION; G-C3N4; NANOSHEETS; Z-SCHEME; H-2-PRODUCTION ACTIVITY; ZNO NANOPARTICLES; HIGHLY EFFICIENT; FACILE SYNTHESIS; WATER;
D O I：
10.1016/j.colsurfa.2020.124869
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：
The nitrogen-rich ZnO/g-C3N4 composites were prepared and exhibited excellent photocatalytic performance for hydrogen evolution and NO photo-oxidation under visible-light illumination. The obtained nitrogen-rich ZnO/g-C3N4 composite has efficient visible-light utilization and effective separation of photogenerated electron-hole pairs. Experimental data verifies that the photocatalytic activity of ZnO/g-C3N4 composite could be improved by N dopant. NZnOCN1 composite exhibits the highest photocatalytic activity for H-2 evolution and NO removal. The results show that the possible mechanism of the photocatalytic H-2 evolution reaction is the type II mechanism, while the Z-scheme mechanism of nitrogen-rich ZnO/g-C3N4 composite is conducive to NO photo-oxidation.
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页数：9
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