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%.
作者
杨自涛
王志涛
吴方棣
YANG Zitao WANG Zhitao WU Fangdi(Fujian Provincial Key Laboratory of Eco-Industrial Green Technology, Wuyi University, Wuyishan 35430)
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)