C_(3)N_(4)/CZTS半导体异质结的物理机制及其光催化性能的研究  

Physical Mechanism of C_(3)N_(4)/CZTS Heterojunction and Study on its Photocatalytic Activity

作　　者：兰承武 谷禹霖 LAN Chengwu;GU Yulin(College of Materials Science and Engineering,Jilin Institute of Chemical Technology,Jilin 132022,China;College of Physics,Jilin University,Changchun 130012,China)

机构地区：[1]吉林化工学院材料科学与工程学院,吉林吉林132022 [2]吉林大学物理学院,吉林长春130012

出　　处：《大学物理实验》2022年第4期46-51,共6页Physical Experiment of College

基　　金：吉林市科技局项目(20210103086)。

摘　　要：六价铬对环境有长期的危险性,人体摄入可能造成遗传性基因缺陷甚至癌症。目前光催化降解六价铬被认为是一种廉价而快速的方法,C_(3)N_(4)是一种具有平面形的类石墨烯材料,具有良好的光催化性能,通过复合铜锌锡硫(Cu_(2)ZnSnS_(4)),得到了具有优异降解性能的复合材料,在5 min时降解率达到了95.2%,相较于单一的C_(3)N_(4)和Cu_(2)ZnSnS_(4)分别提升了4.83和1.4倍。Hexavalent chromium poses long-term environmental risks and can cause genetic defects and even cancer in humans,whereas trivalent chromium does not.At present,photocatalytic degradation of hexavalent chromium is considered as a cheap and rapid method.C_(3)N_(4) is a planar graphene-like material with good photocatalytic performance.By composite copper,zinc,tin and sulfur(Cu_(2)ZnSnS_(4)),the composite material with excellent degradation performance was obtained,and the degradation rate reached 95.2%at 5 min.Compared with the single C_(3)N_(4) and Cu_(2)ZnSnS_(4),the increase was 4.83 and 1.4 times.

关 键 词：光催化 六价铬降解 复合材料 

分 类 号：O643[理学—物理化学]