铕掺杂介孔TiO2光催化消除丙酮的研究  

Study on Photocatalytic Elimination of Acetone on Eu-doped Mesoporous TiO_2

作　　者：陈晓淼[1] 刘峥军[1] 杜艺[1] 李建敏 CHEN Xiao-miao;LIU Zheng-jun;DU Yi;LI Jian-min(Special and Key Laboratory of Functional Materials and Resource Chemistry of Guizhou Provincial Education Department,Anshun University,Guizhou Anshun 561000,China)

机构地区：[1]安顺学院,贵州省教育厅功能材料与资源化学特色重点实验室,贵州安顺561000

出　　处：《广州化工》2018年第16期79-81,共3页GuangZhou Chemical Industry

基　　金：贵州省科学技术厅三方联合基金项目(黔科合LH字[2014]7499);贵州省教育厅项目(黔教合KY字[2015]385);贵州省教育厅项目(黔教合KY字[2017]285);安顺学院大学生SRT项目(2017SRT12)

摘　　要：以高分子嵌段共聚物P123为结构导向剂结合溶胶凝胶法制备出稀土铕掺杂的介孔TiO_2光催化剂。对光催化剂进行了N2吸附-脱附表征。以丙酮为降解底物,研究了催化剂对丙酮的光催化活性。讨论了铕的掺杂量和底物的初始浓度对光催化消除效果的影响。制备的光催化剂与商品P25相比,表现出较高的活性。当丙酮浓度为21.7 g·m-3,流速为10.0 m L·min-1时,丙酮的消除率达到了98.9%。Eu-doped mesoporous TiO2 catalysis were synthesized via the sol-gel method with Pluronic P123 as the structure directing template. They were characterized respectively by N2 adsorption-desorption. The photocatalytic activity of the samples was tested in the elimination of gaseous acetone. The influence of different doping contents and different initial concentration of acetone on the catalytic activity were discussed. These mesoporous photocatalysts exhibited higher activity than that of the commercial photocatalyst l）25 under ultraviolet light in-adiation. When the initial concentration of acetone was 21.7 g · m^-3, and the flow rate was 10.0 mL · min^-1 , the elimination rate of acetone can reach 98.9%.

关 键 词：铕 介孔TIO2 光催化 丙酮 

分 类 号：O644.1[理学—物理化学]