|
|||||
|
|
Enhanced photocatalytic activity of TiO2 by surface fluorination in degradation of organic cationic compound |
|
| Authors: | YANG Shi-ying CHEN You-yuan ZHENG Jian-guo and CUI Ying-jie |
| Institution: | 1. Key Lab of Marine Environmental Science and Ecology,Ministry of Education,Ocean University of China,Qingdao,266003,China;College of Environmental Science and Engineering,Ocean University of China,Qingdao,266003,China 2. College of Environmental Science and Engineering,Ocean University of China,Qingdao,266003,China |
| Abstract: | Experiments were carried out to investigate the influence of TiO2 surface fluorination on the photodegradation of a representative organic cationic compound, Methylene Blue (MB). The electropositive MB shows poor adsorption on TiO2 surface; its degradation performs a HO· radical-mediated mechanism. In the F-modified system, the kinetic reaction rate enlarged more than 2.5 fold that was attributed mainly to the accumulating adsorption of MB and the increased photogenerated hole available on the F-modified TiO2 surface. |
| Keywords: | photocatalysis mechanism adsorption surface fluorination photogenerated hole Methyl Blue(MB) compound organic photodegradation fluorination surface fold increased hole available kinetic reaction rate system mechanism adsorption Methylene Blue Experiments influence representative |
| 本文献已被 CNKI 维普 万方数据 ScienceDirect PubMed 等数据库收录！ | |
| 点击此处可从《环境科学学报(英文版)》浏览原始摘要信息 | |
| 点击此处可从《环境科学学报(英文版)》下载免费的PDF全文 | |