ZnSnO_(3)/g-C_(3)N_(4)催化剂的制备及其光催化降解性能的研究  

Preparation of ZnSnO_(3)/g-C_(3)N_(4)Catalyst and its Photocatalytic Degradation Performance

作　　者：赵悠然 陈荣柱 熊壮 张苗苗 项丰达 杨尚武 曹英寒[1] ZHAO Youran;CHEN Rongzhu;XIONG Zhuang;ZHANG Miaomiao;XIANG Fengda;YANG Shangwu;CAO Yinghan(School of Biological and Chemical Engineering,Nanyang Institute of Technology,Nanyang Henan 473000,China)

机构地区：[1]南阳理工学院生物与化学工程学院,河南南阳473000

出　　处：《江西化工》2024年第4期57-61,共5页Jiangxi Chemical Industry

基　　金：南阳理工学院2023年度大学生科研基金项目。

摘　　要：当前,水污染已经严重影响到人类生存和社会发展。为了解决这个问题,人们利用光催化剂来处理水中污染物。本文选用水热法,以石墨相氮化碳(g-C_(3)N_(4))作为载体,掺杂少量偏锡酸锌制备新型光催化剂来降低水中污染物含量,并研究了该催化剂的最佳制备条件。通过研究该催化剂对罗丹明B的降解效果发现,当掺杂量达到10%,反应温度控制在150℃,反应时间为4 h时制备的ZnSnO_(3)/g-C_(3)N_(4)催化剂的光催化性能最佳。在10 mg/L罗丹明B溶液中加入80 mg该催化剂,当光催化反应时间为100 min时,罗丹明B降解率达到83.61%。利用扫描电镜(SEM)、透射电镜(TEM)、X射线衍射(XRD)、空隙及比表面积测试仪(BET)等对ZnSnO_(3)/g-C_(3)N_(4)催化剂进行检测,了解其形貌特征。Human survival and social development have been seriously affected by water pollution.In order to solve this problem,photocatalysts are used to treat pollutants in water.A hydrothermal method was chosen to prepare a new photocatalyst used graphite-phase carbon nitride(g-C_(3)N_(4))as a carrier,doped with a small amount of ZnSnO_(3)to reduce the contaminant content in water,and the optimum conditions for the preparation of this catalyst were investigated.The photocatalytic activity of ZnSnO_(3)/g-C_(3)N_(4)catalyst was found to be the best when the amount of doping was 10%,the reaction temperature was controlled at 150℃and the reaction time was 4 hours.When 80 mg of the catalyst was added to 10 mg/L rhodamine B solution,the degradation rate of rhodamine B reached 83.61%when the photocatalytic reaction time was 100 min.The morphological and composition characteristics of ZnSnO_(3)/g-C_(3)N_(4)catalyst were detected by scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray diffraction(XRD)and BET.

关 键 词：ZnSnO_(3)/g-C_(3)N_(4) 水处理 光催化 降解 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学] X703[环境科学与工程—环境工程]