钛酸铋材料的制备及催化性能研究  

Preparation of Bismuth Titanate Powders and Their Catalytic Behavior

作　　者：何美香[1] 董金梅[1] 林达[1] 陈霞[1] 王恩过[1] 

机构地区：[1]湛江师范学院物理科学与技术学院,广东湛江524048

出　　处：《湛江师范学院学报》2009年第3期53-56,共4页Journal of Zhanjiang Normal College

摘　　要：以钛酸四丁酯和硝酸铋为原料,用柠檬酸热解法制备了钛酸铋光催化剂,并研究了焙烧温度、铋钛比对样品的结构和光催化活性的影响.用X射线衍射表征了样品的晶相结构,用SEM检测样品的形貌.以次甲基蓝为模拟污染物,评价了样品的光催化性能,发现当铋钛比为8∶1,焙烧温度873 K时样品的光催化活性最高.Bismuth titanate powders are prepared by the citric--combustion method using bismuth nitrate and titanium butoxide as the starting precursors, and the effects of sintering temperature and the ratio of bismuth to titanium on their structure and photocatalytic activity were studied. The powders were characterized by X--ray diffractometry （XRD） and scanning electron microscopy （SEM）. The photoeatalyric property of the samples was probed by using the methyl blue as simulated contaminants. The results show that bismuth titanate powder prepared with the ratio of bismuth to titanium of 8 ： 1 at the sintering temperature of 873K has the best photocatalytic activity.

关 键 词：Bi12TiO20 钛酸铋 光催化 

分 类 号：X131.2[环境科学与工程—环境科学]