| 偏钛酸制备纳米TiO2粉体及其光催化性能研究 |
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| 引用本文： | 张世英,周武艺,唐绍裘,万隆. 偏钛酸制备纳米TiO2粉体及其光催化性能研究[J]. 化学工程, 2006, 34(2): 60-62,78 |
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| 作者姓名： | 张世英 周武艺 唐绍裘 万隆 |
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| 作者单位： | 长沙学院,生物工程与环境科学系,湖南,长沙,410003;湖南大学,材料科学与工程学院,湖南,长沙,410082 |
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| 基金项目： | 湖南省自然科学基金项目(03JJY4046) |
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| 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,根据Scherrer方程计算得到晶粒尺寸与电镜照片结果吻合。用甲基橙为目标降解物,研究了其对甲基橙的降解性能,当分散剂加入质量分数为13.5%,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—20 nm,降解甲基橙的效率最高。
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| 关 键 词： | 偏钛酸 二氧化钛光催化剂 光催化降解 |
| 文章编号： | 1005-9954（2006）02-0060-03 |
Preparation of nano-TiO2 powders with metatitanic acid and its photo-catalytic properties |
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| ZHANG Shi-ying,ZHOU Wu-yi,TANG Shao-qiu,WAN Long. Preparation of nano-TiO2 powders with metatitanic acid and its photo-catalytic properties[J]. Chemical Engineering, 2006, 34(2): 60-62,78 |
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| Authors: | ZHANG Shi-ying ZHOU Wu-yi TANG Shao-qiu WAN Long |
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| Affiliation: | 1. Department of Biological Engineering and Environmental Science, Changsha University, Changsha 410003, Hunan Province, China; 2. College of Material Science and Engineering, Hunan University, Changsha 410082, Hunan Province, China |
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| Abstract: | Nano-TiO_2 powder was prepared with metatitanic acid as raw material by hydrolyzation-precipitation method in normal temperature and characterized with XRD and TEM.The photo-catalytic properties of nano-TiO_2 were researched by degrading the methyl orange.The result shows that the degradation rate is the most obvious in degrading the methyl orange when the using mass fraction 13.5% of hydroxyproxyl cellulose(HPC) as dispersant and adjusting the pH of the solution for 4.0. |
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| Keywords: | metatitanic acid TiO_2 photo-catalyst photo-catalytic degradation |
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