掺锡TiO_2复合颗粒的制备和日光催化的研究  

The Degradation of Rhodamine B in the Presenceof Doped-Sn TiO_2 Photocatalyst

作　　者：马琦[1] 张保住[1] 张志强[1] 张智敏[1] 

机构地区：[1]山西大学化学化工学院,山西太原030006

出　　处：《山西大学学报（自然科学版）》2005年第1期62-64,共3页Journal of Shanxi University(Natural Science Edition)

基　　金：山西省自然科学基金(20041016)

摘　　要：采用实验室合成的掺锡TiO2作为光催化剂,以罗丹明B降解反应为模型,研究了不同制备条件(反应时间、反应温度、氨水用量和掺杂量)和不同反应降解体系(催化剂用量、pH值)对掺锡TiO2降解罗丹明B的影响.实验结果表明,不同制备条件对产品的光催化活性有较大的影响,是决定产品光催化活性的关键因素.催化剂用量对罗丹明B降解起双重作用.酸性强的反应体系有利于罗丹明B的降解.The various affecting factors on sunlight degradation of Rhodamine B in the presence of doped-Sn TiO2 photocatalyst were studied.The results show that different preparation conditions,induding reaction temperature and time,the use level of aqua ammonia and doping-Sn amount,bring about important effect on catalytic activity of photocatalyst and were key factors to photocatalytic activity of doped-Sn titania.In addition,the number of catalyst had double-effect on degradating Rhodamine B. The degradation rate of Rhodamine B in the strongly acidic solution was higher.

关 键 词：掺锡二氧化钛 日光降解 罗丹明B 

分 类 号：O612.4[理学—无机化学]