回流吸附法制备H_3PW_(12)O_(40)/有机膨润土的研究  

Preparation of H_3PW_(12)O_(40)/Organobentonite Using Reflux-adsorption

作　　者：张琳叶[1,2] 李志业[1] 魏光涛[1,2] 叶瑞翠[1] 李仲民[1,2] 莫继华 夏帆[1] 黎铉海[1] 

机构地区：[1]广西大学化学化工学院,广西南宁530004 [2]广西有色金属及特色材料加工重点实验室,广西南宁530004

出　　处：《非金属矿》2013年第5期64-66,70,共4页Non-Metallic Mines

基　　金：教育部高等学校博士学科点专项科研基金联合资助项目(20114501120001);广西自然科学基金(2013GXNSFAA019296);广西高等学校科研项目(桂教科研201203YB005);广西大学广西有色金属及特色材料加工重点实验室开放基金(GXKFJ12-22)

摘　　要：通过回流吸附法由H3PW12O40与有机膨润土制备了H3PW12O40/有机膨润土催化材料,以其光助类芬顿催化性能为指标,重点考察了制备过程中吸附时间、吸附温度、焙烧温度、焙烧时间对催化性能的影响,确定适宜的制备条件为:吸附时间4 h、吸附温度80℃、焙烧温度200℃、焙烧时间2 h,制备的H3PW12O40/有机膨润土催化材料具有良好的稳定性。表征测试证明,H3PW12O40成功固载在膨润土上,H3PW12O40/有机膨润土是一疏松、多孔的层状复合材料;对H3PW12O40的固载为化学接枝。H3PW12O40/organobentonite was prepared from H3PW12O40 and organobentonite using reflux-adsorption. In view of the photo- Fenton catalytic performance, the effects of reflux-adsorption time, reflux-adsorption temperature, calcination temperature and calcination time on the catalytic activity of H3PW12O40/organobentonite were investigated. The preferable process conditions for preparation of H3PW12O40/organobentonite were obtained as following： reflux-adsorption time 4 h, reflux-adsorption temperature 80℃, calcination temperature 200℃ and calcination time 2 h. H3PW12O40/organobentonite had good catalytic stability. Catalyst characterization showed H3PW12O40 was successfully immobilized on organobentonite, and H3PW12O40/organobentonite was a layered composite material with the porous structure. The immobilization mechanism of H3PW12O40was chemical grafting.

关 键 词：杂多酸 膨润土 吸附回流 制备 

分 类 号：TD985[矿业工程—选矿] TQ426.91[化学工程]