Cu7S4/CuO复合材料的光催化性能研究  

Photocatalytic performance of Cu7S4/CuO composite

作　　者：郎军 邓明龙 张朝良 李晓燕[1,2] Lang Jun;Deng Minglong;Zhang Chaoliang;Li Xiaoyan(National and Local Joint Laboratory of Traffic Civil Engineering Materials,Chongqing Jiaotong University,Chongqing 400074;School of Materials Science and Engineering,Chongqing Jiaotong University,Chongqing 400074)

机构地区：[1]重庆交通大学交通土建工程材料国家地方联合实验室,重庆400074 [2]重庆交通大学材料科学与工程学院,重庆400074

出　　处：《化工新型材料》2019年第11期158-161,166,共5页New Chemical Materials

基　　金：国家自然科学基金(NSFC51506018);重庆市基础与前沿研究计划项目(cstc2015jcyjA50025);重庆交通大学交通土建工程材料国家地方联合实验室开放基金(LHSYS-2014-004)

摘　　要：以氯化铜(CuCl2·2H2O)和硫粉(S)为原料,乙醇(C2H6O)和水的混合液为溶剂,于180℃下反应24h成功制备了几种形貌的Cu7S4/CuO半导体复合材料。分别用X射线粉末衍射仪、扫描电子显微镜、紫外-可见分光光谱仪等手段对产品进行了表征,采用氙灯模拟太阳光,探讨了Cu7S4/CuO半导复合材料对有机染料罗丹明B溶液的降解效果。结果表明,水热法合成的产物结晶性良好,随着用水量的减少,形貌由颗粒状转变为微纳米线状;光催化降解实验显示,微纳米线状的Cu7S4/CuO复合材料具有更好的催化性能,在20min内对罗丹明B的降解率达到95%以上。Using copper chloride(CuCl2·2H2O)and sulfur powder(S)as raw materials,and a mixture of ethanol(C2H6O)and water as solvent,a semiconductor composite composed of several morphologies of Cu7S4and CuO was successfully prepared by reaction at 180℃for 24 hours.The products were characterized by XRD,SEM and EDS.The xenon lamp was used to simulate sunlight to investigate the degradation effect of Cu7S4/CuO semiconductor composites on rhodamine B solution.The results shown that the products synthesized by the hydrothermal method had good crystallinity.With the decrease of water consumption,the morphology changed from granular to micro-nanowires.Photocatalytic degradation experiments shown that the micro-nano-wire Cu7S4/CuO composites had better catalytic performance,the degradation rate of rhodamine B was more than 95%in 20 minutes.

关 键 词：Cu7S4/CuO 水热法 光催化 

分 类 号：TB3[一般工业技术—材料科学与工程]