CuAl_(1.6)Fe_(0.4)O_4/凹凸棒石复合材料的制备及可见光催化性能研究  

Preparation and photocatalytic activities of CuAl_(1.6)Fe_(0.4)O_4/PG composite materials

作　　者：苏广慧 陈龙[1] 崔佳萌[1] 沈孟[1] 汪祥[1] 张超[1] 王君霞[1] 吴秀玲[1] 

机构地区：[1]中国地质大学(武汉)材料与化学学院,湖北武汉430074

出　　处：《电子显微学报》2014年第3期204-208,共5页Journal of Chinese Electron Microscopy Society

基　　金：国家自然科学基金资助项目(No.21203170);全国大学生创新训练计划(No.201210491019);中国地质大学(武汉)大学生自主创新资助计划资助项目(No.1410491B04)

摘　　要：采用溶胶-凝胶法制备了CuAl1.6Fe0.4O4尖晶石,以凹凸棒石(PG)为载体,合成了CuAl1.6Fe0.4O4/凹凸棒石复合材料。采用X射线粉末衍射(XRD)、扫描电镜(SEM)以及紫外-可见(UV-Vis)吸收光谱测试技术对样品的结构、形貌、吸光性能进行了表征和分析,同时以500W氙灯为光源,亚甲基蓝为降解对象,测试了其可见光催化活性,并详细考察了尖晶石负载量对其光催化性能的影响。实验结果表明,当尖晶石负载量为40%时,其可见光降解性能最佳,最佳降解率达到了98.55%。The CuAl1.6Fe0.4O4 spinel was prepared by sol-gel method and was loaded on palygorskite to obtain the CuAl1.6Fe0.4O4/PG composite materials.The structure,morphology and light absorption performance of samples were characterized by means of XRD,SEM,and UV-Vis,respectively.The samples with different loading amounts of spinel were applied to degrade the methylene blue solution under the 500W xenon lamp to test its photocatalytic property.The experimental results showed that the photocatalytic property was the best when the loading amounts of spinel were 40%.The degradation rate was up to 98.55% after 3 hours.

关 键 词：尖晶石 凹凸棒石 可见光催化 亚甲基蓝 

分 类 号：O643.36[理学—物理化学]