Introducing sulfur vacancies and in-plane SnS_(2)/SnO_(2) heterojunction in SnS_(2) nanosheets to promote photocatalytic activity

作     者：Keyan Hu Chen Ming Yiting Liu Chong Zheng Shaoning Zhang Dong Wang Wei Zhao Fuqiang Huang Keyan Hu;Chen Ming;Yiting Liu;Chong Zheng;Shaoning Zhang;Dong Wang;Wei Zhao;Fuqiang Huang

作者机构：State Key Laboratory of High-Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China School of Mechanical and Electrical EngineeringJingdezhen Ceramic InstituteJingdezhen 333403China State Key Laboratory of Precision SpectroscopyEast China Normal UniversityShanghai 200062China Department of Chemistry and BiochemistryNorthern Illinois UniversityDeKalbIllinois 60115United States Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and ApplicationsCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China 

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

年 卷 期：2020年第31卷第10期

页      面：2809-2813页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 081705[工学-工业催化] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 070304[理学-物理化学(含∶化学物理)] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：National Key Research And Development Program(No.2016YFB0901600) CAS Center for Excellence in Superconducting Electronics the Key Research Program of Chinese Academy of Sciences(Nos.QYZDJ-SSWJSC013 and KGZD-EW-T06) National Natural Science Foundation of China(Nos.21871008 and 21801247) Jingdezhen Science and Technology Bureau(No.20192GYZD008-21) Science Foundation for Youth Scholar of State Key Laboratory of High Performance Ceramics and Superfine Microstructures(No.SKL 201804) 

主　　题：Sulfur vacancies In-plane heterojunction SnS_(2)Nanosheets Ball-milling Charge carrier separation 

摘      要：Due to the relatively sluggish charge carrier separation in metal sulfides,the photocatalytic activity of them is still far lower than ***,sulfur vacancies and in-plane SnS_(2)/SnO_(2) heterojunction were successfully introduced into the SnS_(2) nanosheets through high energy *** defective structures were studied by the electron paramagnetic resonance,Raman spectra,X-ray photoelectron spectroscopy,and high-resolution transmission electron microscope *** sulfur vacancies and in-plane heterojunctions strongly accelerate the separation of photoexcited electron-hole pairs,as confirmed by the photo luminesce nce emission spectra and time-resolved photoluminescence decay *** introduction of sulfur vacancies and in-plane heterojunction in SnS_(2) nanosheets results in roughly six times higher photodegrading rate for methyl orange and four times higher photocatalytic reduction rate of Cr6+than those of pure SnS_(2) nanosheets.