13X分子筛负载TiO_2对甲醛溶液的光催化降解  

Photocatalytic Degradation of Formaldehyde by Composite Materials of TiO_2 Loaded 13X Molecular Sieves

作　　者：杨自涛 王志涛[1] 吴方棣[1] YANG Zitao WANG Zhitao WU Fangdi(Fujian Provincial Key Laboratory of Eco-Industrial Green Technology, Wuyi University, Wuyishan 35430)

机构地区：[1]武夷学院福建省生态产业绿色技术重点实验室,福建武夷山354300

出　　处：《武夷学院学报》2016年第9期34-37,共4页Journal of Wuyi University

基　　金：福建省教育厅科技项目(JB14104);福建省教育厅科技产学研项目(JA15508);武夷学院校级青年基金(XQ201301);福建省大学生创新创业训练计划项目(201510397043)

摘　　要：采用溶胶-凝胶法制备了TiO_2光催化剂,并通过固体扩散法将TiO_2负载在分子筛上,制备出具有光催化性和吸附性的TiO_2/13X复合材料。材料的形貌和结构特征用SEM和XRD进行表征。将材料用于光催化降解甲醛溶液,考察了溶胶-凝胶法中水量、乙醇量、醋酸量和煅烧时间对甲醛降解活性的影响。探究了13X和TiO2的质量比对复合材料光催化性能的影响。实验结果表明:TiO2最佳的制备条件为:钛酸丁酯:水:乙醇:冰醋酸=10∶9∶30∶0.7,煅烧时间3h。当负载质量比为1∶0.2,甲醛的降解率为90.7%。TiO2 catalyst was prepared by the sol-gel method. Then, a novel composite materials of TiO2 loaded 13X molecular sieves with adsorption and photocatalysis was synthesized by solid diffusion method. The structure and morphology of the materials was charac- terized by SEM and XRD. Furthermore, experiment photoeatalytic degradation experiments for formaldehyde were carried out with an aim to inspect the influence of preparation conditions of TiO： on photocatalytic degradation performance. The results showed that the best prepared conditions were proved to beTi （OC4Hg）4：H：O：CH3COOH：C2H5OH=10：9：0.7：30 and calcination time 3 h respectively. When the loading mass-ratio was 1：0.2, the photocatalytic degradation of formaldehyde was 90.7%.

关 键 词：13X分子筛 TIO2 光催化 甲醛溶液 

分 类 号：X703[环境科学与工程—环境工程]