有机膨润土负载ZnO/TiO_2光降解催化剂的研制及性能  

Preparation and Properties of ZnO/TiO_2 Photodegradation Catalyst Supported by Organic Bentonite

作　　者：刘小玉[1] 杨莹琴[1] 陈慧娟[1] 

机构地区：[1]信阳师范学院化学化工学院,河南省信阳市长安路237号464000

出　　处：《光谱实验室》2011年第3期1154-1157,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：河南省教育厅自然科学研究计划项目(2009A110015)

摘　　要：以六水硝酸锌、酞酸丁酯和有机膨润土为原料,采用沉淀法制备ZnO/TiO2膨润土复合光催化材料,用IR和XRD对光催化剂的组织构造和微观结构进行表征,实验了光催化剂对亚甲基蓝废水的降解性能。结果表明:ZnO/TiO2成功负载于膨润土片层表面,ZnO的含量为有机膨润土的8%,反应温度为70℃,焙烧温度为420℃,催化剂用量为12mg/L时,亚甲基蓝废水的降解率可达97%以上。ZnO/TiO2 photodegradation catalyst supported by organic bentonite were preparaed by the method of precipitation with zinc nitrate hexahydrate,butyl phthalate and organic bentonite as raw materials.The organization structure and the micro-structure of the photocatalysts were characterized by IR and XRD.Its photocatalytic activity for the methylene blue was investigated.The ZnO/TiO2 was successfully loaded on the surface of the bentonite.When the content ratio of ZnO in organic bentonite was 8%,the reaction temperature was 70℃ and the roasted temperature was 420℃,and the addition of catalyst was 12mg/L,the photodegradation rate of methylene blue was above 97%.

关 键 词：ZnO/TiO2 有机膨润土 光降解催化剂 亚甲基蓝 

分 类 号：O657.33[理学—分析化学] O434.13[理学—化学]