Fabrication of β-In2S3/NiAl-LDH heterojunction photocatalyst with enhanced separation of charge carriers for efficient CO2 photocatalytic reduction

被引：121
|
作者：
Miao, Yu-fang [1 ,2 ]
Guo, Rui-tang [1 ,2 ]
Gu, Jing-wen [1 ,2 ]
Liu, Yuan-zhen [1 ,2 ]
Wu, Gui-lin [1 ,2 ]
Duan, Chao-peng [1 ,2 ]
Zhang, Xiao-dong [3 ]
Pan, Wei-guo [1 ,2 ]
机构：
[1] Shanghai Univ Elect Power, Sch Energy Source & Mech Engn, Shanghai 200090, Peoples R China
[2] Shanghai Engn Res Ctr Power Generat Environm Prot, Shanghai 200090, Peoples R China
[3] Jimei Univ, Coll Mech & Energy Engn, Xiamen 361021, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2020年 / 527卷
基金：
中国国家自然科学基金;
关键词：
Layered double hydroxide; In2S3; CO2; reduction; Photocatalysis; Electron-hole pairs; CARBON NITRIDE NANOSHEETS; DOUBLE HYDROXIDES; NOBLE-METAL; NANOCOMPOSITES; PROGRESS; G-C3N4; HYDROGENATION; PERFORMANCE; EVOLUTION; METHANOL;
D O I：
10.1016/j.apsusc.2020.146792
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：
A novel ball-flower In2S3/NiAl-LDH heterojunction photocatalyst was synthesized via a simple one-step hydrothermal approach for the first time and applied for CO2 photocatalytic reduction. The In2S3/LDH composites exhibited excellent photocatalytic performance and stability in CO2 photoreduction in water under the irradiation of simulated solar light. Experimental results indicated that the 30% In2S3/NiAl-LDH heterojunction photocatalyst exhibited the best photocatalytic performance. And the maximum CH4 yields of 36.1 mu mol/(h center dot gcat) under 7 h visible light irradiation was about 2.5 and 3.5 times of unadulterated LDH and In2S3. The enhanced photocatalytic performance of 30% In2S3/NiAl-LDH catalyst was due to the highly-efficient separation of photogenerated electron-hole pairs, its larger specific surface area and stronger visible-light absorption capacity.
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页数：8
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