不同模板剂对介孔SiO2-TiO2复合材料光催化性能的影响  

Effect of Different Templates on Photocatalytic Properties of Mesoporous SiO2-TiO2 Composite Materials

作　　者：郑亚超 王亮 朱雯倩 施冬健 陈明清 ZHENG Ya-chao;WANG Liang;ZHU Wen-qian;SHI Dong-jian;CHEN Ming-qing(School of Chemistry and Materials Engineering,Jiangnan University,Jiangsu Wuxi 214122,China)

机构地区：[1]江南大学化学与材料工程学院,江苏无锡214122

出　　处：《广州化工》2020年第10期48-52,共5页GuangZhou Chemical Industry

基　　金：国家自然科学基金项目(21571084)。

摘　　要：介孔材料被用于光催化领域。利用不同类型的模板剂调节孔径和比表面积是提高光催化效率的方法之一,在介孔材料中引入第二金属或金属氧化物也是提高其降解效率的有效途径。因而,选用阳离子表面活性剂N-十六烷基乙二胺(HEDA)、非离子表面活性剂三嵌段共聚物EO20PO70EO20(P123)与EO106PO70EO106(F127),分别合成相应的介孔材料;通过静电作用将TiO2负载到介孔材料表面及内部,制备介孔SiO2-TiO2复合材料。研究不同离子型模板剂对介孔材料的比表面积及光催化降解效率的影响。Mesoporous materials are used in the field of photocatalysis.Thus,adjusting specific surface area using different templates is one of the methods to improve the photocatalytic efficiency.By loading a second metal or metal oxide on the mesoporous surface via electrostatic force is an effective method to improve the photocatalytic performance.Cationic surfactant N-hexadecylethylenediamine(HEDA)and non-ionic surfactant triblock copolymers EO 20 PO 70 EO 20(P123)and EO 106 PO 70 EO 106(F127)were selected to synthesize mesoporous materials respectively.The mesoporous SiO2-TiO2 composites were prepared by electrostatic loading TiO 2 onto the surface and inside of the mesoporous materials.The effects of different ionic templates on the pore size,specific surface area and photocatalytic degradation rate of mesoporous materials were investigated.

关 键 词：介孔复合材料 光催化降解 模板剂 

分 类 号：TQ13[化学工程—无机化工]