累托石负载钨酸铋光催化剂的制备及其性能研究  

Preparation of Bi_2WO_6/Rectorite Photocatalyst and Its Photocatalytic Properties

作　　者：卜显忠[1] 高珂[1] 郭亚丹[2] 

机构地区：[1]西安建筑科技大学材料与矿资学院,陕西西安710055 [2]东华理工大学核资源与环境省部共建国家重点实验室培育基地,江西南昌330013

出　　处：《陶瓷学报》2015年第4期358-361,共4页Journal of Ceramics

基　　金：国家自然科学基金项目(编号:51304150;51474169)

摘　　要：为了增强Bi2WO6的吸附性和光催化活性,本文以累托石(rectorite)粘土作为载体,采用液相法成功合成Bi2WO6/累托石(BWR)可见光光催化剂。采用XRD、SEM、BET等手段对所制备的催化剂的结构进行了表征。通过降解有机染料酸性红G研究了BWR复合光催化剂的光催化性能。结果表明,BWR相比Bi2WO6比表面积提高了3倍,孔体积提高了2倍,吸附能力显著增强。负载后的催化剂在可见光照射120 min后,对酸性红G的降解率达到98%以上。Using rectorite clay as carrier to enhance the adsorbility and photocatalytic activity of Bi2WO6, Bi2WO6/rectorite composite visible light catalyst was successfully synthesized by liquid method. The structure of the prepared catalyst was characterized by XRD, SEM and BET. The photocatalytic activity of BWR composite was studied by the degradation of organic dye acid red G. The results showed that rectorite significantly increased the specific surface area and pore volume of Bi2WO6 together with the adsorption capacity of the catalyst, and the degradation rate （120 min） of the acid red G reached 98% under visible light irradiation.

关 键 词：累托石 钨酸铋 光催化剂 酸性红G 

分 类 号：TQ174.75[化学工程—陶瓷工业]