Preparation and Photocatalysis of Sulfur-Doped Nano-TiO2/Ti Film

摘要：

Owing to the defects of the fixed TiO2 photocatalysts,the research employed the approach of anodic oxidation to produce high efficiend STiO2/Ti ceramic film oxidized on the surface of titanium,in order to make the absorbable spectrum of light catalyst spread to the visible region and constrain the high recombination rate of electronhole pairs during photoreaction. The surface appearance and the distribution of elements have been checked with scanning electron microscopy. The microcrystal structure of the films has been checked with XRD. The results showed that the main components of sulfur-doped catalyzer were rutile and anatase,meanwhile,the sulfur element distributing on the film was fairly uniform. Films of S-TiO2 photocatalysis reduction K2CrO4 revealed that with the amount of S-contained increased,the rate of reduction K2CrO4 decreased under ultraviolet light while that increased under visible light. It was found that the highest reduction rate of K2CrO4 was achieved through an optimal Na2S2O3 dosage of 0.6g/L in ceramic film prepared processes.

关键词： S-TiO2/Ti film Anodic oxidation Photo reduction K2CrO4

作者: Yanli Jiang Yan Liu Lijuan Yang Guoqing Li Huiling Liu

作者单位: Dept.of Environmental Engineering,Harbin Institute of Technology,Harbin 150090,P.R.China Dept.of Lif Dept.of Life Science and Chemistry,Harbin University,Harbin 150086,P.R.China Dept.of Environmental Engineering,Harbin Institute of Technology,Harbin 150090,P.R.China

会议类型: 国际会议

会议名称: Frist Annual Meeting on Testing and Evaluation of Inorganic Materials(第一届全国无机材料测试与评价学术年会)

会议地点: 南昌

会议语种:英文

页码: 281-283

在线出版日期: 2010-04-28（万方平台首次上网日期，不代表论文的发表时间）