The metallic 1T-WS_(2)as cocatalysts for promoting photocatalytic N_(2) fixation performance of Bi_(5)O_(7)Br nanosheets

作     者：Pengyuan Qiu Jianwei Wang Zhangqian Liang Yanjun Xue Yanli Zhou Xiaoli Zhang Hongzhi Cui Guiqing Cheng Jian Tian Pengyuan Qiu;Jianwei wang;Zhangqian Liang;Yanjun Xue;Yanli Zhou;Xiaoli Zhang;Hongzhi Cui;Guiqing Cheng;Jian Tian

作者机构：School of Materials Science and EngineeringShandong University of Science and TechnologyQingdao 266590China School of Environmental and Material EngineeringYantai UniversityYantai 264005China School of Materials Science and EngineeringZhengzhou UniversityZhengzhou 450001China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2021年第32卷第11期

页      面：3501-3504页

核心收录：

学科分类：081702[工学-化学工艺] 081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：funding from the National Natural Science Foundation of China(Nos.51872173 and 51772176) Taishan Scholars Program of Shandong Province(No.tsqn201812068) Higher School Youth Innovation Team of Shandong Province(No.2019KJA013) Science and Technology Special Project of Qingdao City(No.20-3-4-3-nsh) 

主　　题：Photocatalytic N_(2)fixation Bi_(5)O_(7)Br IT phase WS_(2) Electron-hole pairs Photocatalytic performance 

摘      要：Recently,widespread attention has been devoted to the typical layered BiOCl or BiOBr because of the suitable nanostructure and band ***,owing to the fast carrier recombination,the photocatalytic performance of BiOX materials is not so *** 1T phase WS_(2)nanosheets(NSs)onto Bi_(5)O_(7)Br NSs can improve the photocatalytic N_(2)fixation *** these,the obtained 1T-WS_(2)@Bi_(5)O_(7)Br composites with optimum 5%1T-WS_(2)NSs display a significantly improved photocatalytic N_(2)fixation rate(8.43 mmol L^(−1)h^(−1)g^(−1)),2.51 times higher than pure Bi_(5)O_(7)Br(3.36 mmol L^(−1)h^(−1)g^(−1)).And the outstanding stability of 1T-WS_(2)@Bi_(5)O_(7)Br-5 composites is also ***,the photoexcited electrons from Bi_(5)O_(7)Br NSs are quickly transferred to conductive 1T phase WS_(2)as electron acceptors,which can promote the separation of *** addition,1T-WS_(2)NSs can provide abundant active sites on the basal and edge planes,which can promote the efficiency of photocatalytic N_(2)*** work offers a novel solution to improve the photocatalytic performance of Bi_(5)O_(7)Br NSs.