BiOCl/BiOBr composites for efficient photocatalytic carbon dioxide reduction

被引：9

作者：

Wu, Yangfei ^{[1
]}

Xu, Mengjiao ^{[1
]}

Wang, Yiqiao ^{[1
]}

Hu, Bin ^{[1
]}

Xie, Yu ^{[1
]}

Ling, Yun ^{[1
]}

机构：

[1] Nanchang Hangkong Univ, Coll Environm & Chem Engn, Nanchang 330063, Peoples R China

来源：

APPLIED CATALYSIS A-GENERAL | 2024年 / 677卷

基金：

中国国家自然科学基金;

关键词：

BiOCl; BiOBr; BiOCl/BiOBr; Heterojunction; PhotocatalyticCO2; reduction; CO2; REDUCTION; OXYGEN-VACANCY; DEGRADATION;

D O I：

10.1016/j.apcata.2024.119708

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：

BiOBr (BOB) photocatalysts have low photocatalytic CO 2 reduction performance due to their low electron -hole pair separation efficiency. To improve this problem, BiOCl (BOCl) is used as a co -catalyst. BOCl is loaded into BOB to form BiOCl/BiOBr (BOCl/BOB) type I heterojunction, which enhances the photocatalytic CO 2 reduction performance of BOB by promoting the separation of photogenerated electrons and holes. The results of TPR and PL experiments show that the 20% BOCl/BOB composites have the highest photogenerated carrier separation rate, and the results of CO 2 reduction experiments show that 20% BOCl/BOB composites have the best photocatalytic CO 2 reduction performance of 7.353 mu molg - 1 h - 1 , which is 3.22 and 1.99 times higher than pure BOB and BOCl, respectively. This work provides an effective reference for the development of modified photocatalysts.

引用

页数：8

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