兼具光催化和类Fenton活性的Co-TiO_2催化机理研究  

Mechanism of Co-TiO_2 catalyst with both visible light photocatalytic and Fenton-like catalytic activities

作　　者：陈晴空[1] 吉芳英[1] 郭倩 关伟[1] 晏鹏[1] 徐璇[1] 

机构地区：[1]重庆大学三峡库区生态环境教育部重点实验室,重庆400045 [2]林同棪国际工程咨询(中国)有限公司,重庆401121

出　　处：《功能材料》2013年第24期3616-3621,共6页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51108483);中央高校基本科研业务费资助项目(CDJXS12210002);教育部科技创新工程重大项目培育资金资助项目(708071);重庆市自然科学基金资助项目(cstcjjA20002)

摘　　要：采用溶胶-凝胶法制备了Co-TiO2催化剂。研究了不同掺钴量和焙烧温度下,催化剂的可见光光催化和类Fenton活性,并通过XRD、UV-DRS和XPS对催化剂的结构进行表征,分析了催化机理。结果表明,Co2+掺杂使Co-TiO2同时获得了可见光光催化和类Fenton活性。当掺钴量为1.0%,500℃焙烧时,苯酚的光催化降解率达到52.3%,类Fenton降解率为65.3%。The Co-TiO2 catalysts were prepared by the sol-gel method,and their catalytic activities were meas-ured by the degradation of phenol with different Co2＋ doping dosage and calcinations temperature.The catalytic mechanism was studied through XRD,UV-DRS,XPS and degradation tests.The results showed that the cata-lysts represented the visible light photocatalytic and Fenton-like catalytic activities.When the cobalt doping dosage was 1.0% and the calcinations temperature was 500 ℃,the degradation rates of phenol were reached 52.3% of photocatalytic process under visible light and 65.3% of Fenton-like reaction.

关 键 词：类FENTON 光催化 钴 二氧化钛 苯酚 

分 类 号：X703.1[环境科学与工程—环境工程]