TiO_2光催化剂的离子交换法制备及性能研究  

Preparation of TiO_2 Photocatalyst by Ionic Exchange Method and Study on Its Photocatalytic Performance

作　　者：余珍琴[1] 孙剑飞[1] 石照信[1] 谷亨达[1] 王思林[1] 

机构地区：[1]沈阳化工大学应用化学学院,辽宁沈阳110142

出　　处：《辽宁化工》2011年第1期9-11,共3页Liaoning Chemical Industry

摘　　要：采用离子交换法制备了TiO2光催化材料。通过考察离子交换树脂用量、反应温度、反应时间等因素对所得光催化剂用于紫外光照射下降解亚甲基蓝的性能的影响,得出离子交换树脂用量为500 g、反应时间为5 h、反应温度为54℃所制得的纯TiO2的光催化性能最佳,经紫外光照射120 min后,溶液的脱色效率最高为98.38%。XRD结果表明,所得产品为纳米级锐钛矿型TiO2和金红石型TiO2的混合物粒子,其中锐钛矿型TiO2质量分数为80.8%。TiO2 photocatalytic material was prepared by icon exchange method. Effects of ionic exchange resin dosage, reaction temperature, reaction time, etc. on the prepared photocatalyst performance for degradation of methylene blue under UV radiation were investigated,The results show that the best conditions are follows： amount of ion exchange resin is 500 g, reaction time is 5 h, reaction temperature is 54 %：,the TiO2 photocatalystpreparedunder above conditions has bestphotocatalyticperformance,after 120 rain under UV radiation, the photodegradation efficiency can reach to 98.38%. The XRD results show that the obtained product contains Nano anatase TiO2 and rutile TiO2 particles in the mixture, in which the mass fraction of anatase TiO2 is 80.8%.

关 键 词：TIO2 光催化 TICL4 离子交换法 

分 类 号：TQ426.6[化学工程]