Bi_2O_3/电气石复合催化剂的制备及其光催化性能  

Preparation of Bi_2O_3/tourmaline composite catalyst and its photocatalytic performance

作　　者：王喜全[1] 王瑞[1] 于亮[2] WANG Xiquan;WANG Rui;YU Liang(School of Chemical Engineering,University of Science and Technology Liaoning,Anshan 114051,China;Environmental Monitoring Center of Anshan,Liaoning,Anshan 114004,China)

机构地区：[1]辽宁科技大学化学工程学院,辽宁鞍山114051 [2]辽宁省鞍山市环境监测中心站,辽宁鞍山114004

出　　处：《辽宁科技大学学报》2016年第5期365-369,共5页Journal of University of Science and Technology Liaoning

摘　　要：以电气石为载体,采用化学沉淀法制备Bi_2O_3/电气石复合光催化材料。通过XRD、SEM、UV-Vis等方法对制备的复合型催化剂进行了表征,并在可见光照射下对催化剂的光催化活性进行了测试。结果表明:复合型催化剂扩展其光响应范围,且复合后的Bi_2O_3比纯的Bi_2O_3比表面积更大,在处理酸性红B实验中表现出良好的可见光催化活性。实验发现复合物含5%电气石的制备比例就可以显著提升Bi_2O_3降解有机物活性,60 min时降解率达到97.32%,明显优于单纯Bi_2O_389.77%降解率,提高了光催化剂的降解效率。The Bi2O3/tourmaline composite catalyst was prepared by chemical precipitation in this paper. Thecatalysts then were characterized by various techniques of XRD,SEM,DRS and visible light irradiation. Theresults show that the light response range of the composite catalyst was extended,and the specific surface areaof the composite Bi2O3 catalyst were larger than that of the pure Bi2O3 catalyst. The composite catalyst showedits good visible light catalytic activity in the process of acid red B experiments. It was found that the Bi2O3 degradationactivity of organic can be significantly improved up to 97.32% within 60 min by adding tourmaline of5%.Bi2O3 89.77% degradation rate and improve the degradation efficiency of the photocatalyst.

关 键 词：氧化铋 电气石 复合光催化剂 光催化 

分 类 号：O614[理学—无机化学]