摘要
以偏钛酸为原料通过常温水解-沉淀法制备了纳米TiO2粉体,用XRD和TEM等手段对粉体的晶型和形貌进行表征。用甲基橙为目标降解物,研究了其对甲基橙的降解性能,当分散剂加入量为13.5wt%,氨水溶液的pH值为4.0时得到的光催化剂粉体的晶粒尺寸均匀,粒径为10～20nm,其降解甲基橙的效率最高。
Nano-TiO2 powders were prepared with metatitanic acid as the initial materials by hydrolyzation-precipitation method in normal temperature and were characterized with XRD and TEM. The photocatalytic properties of nano-TiO2 were researched by degradating the methyl orange. The result shows that the degradation rate is the most obvious in degradating the methyl orange when using 13.5wt% of HPC as dispersant and adjusting the pH of the solution for 4.0.
出处
《中国陶瓷》
CAS
CSCD
北大核心
2007年第1期27-29,共3页
China Ceramics
基金
长沙市科技局科技计划项目
编号:051036-12
关键词
光催化
纳米二氧化钛
水解沉淀法
Photocatalytic, nano-TiO2 powder, Hydrolyzation-Precipitation Method
