| Vis/Co-TiO_2/KHSO_5体系Fenton-光催化协同降解苯酚 |
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| 引用本文： | 陈晴空,谢志刚,吉芳英,郭倩,刘亭役,徐璇.Vis/Co-TiO_2/KHSO_5体系Fenton-光催化协同降解苯酚[J].环境工程学报,2014,8(5):1749-1754. |
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| 作者姓名： | 陈晴空 谢志刚 吉芳英 郭倩 刘亭役 徐璇 |
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| 作者单位： | 重庆大学三峡库区生态环境教育部重点实验室, 重庆 400045;重庆文理学院材料与化工学院, 重庆 402160;重庆大学三峡库区生态环境教育部重点实验室, 重庆 400045;林同棪国际工程咨询(中国)有限公司, 重庆 401121;重庆大学三峡库区生态环境教育部重点实验室, 重庆 400045;重庆大学三峡库区生态环境教育部重点实验室, 重庆 400045 |
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| 基金项目： | 国家自然科学基金资助项目（51108483）；中央高校基本科研业务费专项资金项目（CDJXS12210002）；教育部科技创新工程重大项目培育资金项目（708071）；重庆市自然科学基金资助项目（cstcjjA20002） |
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| 摘 要： | 通过溶胶-凝胶法制备了同时具有可见光(Vis)光催化和Fenton催化双重活性的Co-TiO2催化剂。通过对比Vis/Co-TiO2/KHSO5、Co-TiO2/KHSO5和Vis/Co-TiO23种体系对苯酚的降解效果,Vis/Co-TiO2/KHSO5表现出明显的Fenton-光催化协同作用。进一步研究pH值、KHSO5与苯酚摩尔比(nKHSO5∶nC6H6O)和Co-TiO2投加量(mCo-TiO2)对Fenton-光催化协同降解苯酚效果的影响。结果表明,pH=6.9、nKHSO5∶nC6H6O=10∶1、mCo-TiO2=1.0 g/L时,降解率达100%。最后,结合XRD、XPS和UV-DRS等手段和催化活性实验数据分析了Vis/Co-TiO2/KHSO5体系的催化机理。
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| 关 键 词： | 钴 二氧化钛 Fenton 可见光 光催化 协同效应 |
| 收稿时间： | 4/1/2013 12:00:00 AM |
Synergistic effect of Fenton-photocatalysis through degradation of phenol by Vis/Co-TiO2/KHSO5 reaction system |
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| Chen Qingkong,Xie Zhigang,Ji Fangying,Guo Qian,Liu Tingyi and Xu Xuan.Synergistic effect of Fenton-photocatalysis through degradation of phenol by Vis/Co-TiO2/KHSO5 reaction system[J].Techniques and Equipment for Environmental Pollution Control,2014,8(5):1749-1754. |
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| Authors: | Chen Qingkong Xie Zhigang Ji Fangying Guo Qian Liu Tingyi and Xu Xuan |
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| Institution: | Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China;College of Materials and Chemical Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, China;Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China;T. Y. Lin International Engineering Consulting (China) Co. Ltd., Chongqing 401121, China;Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China;Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China |
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| Abstract: | The Co-TiO2 catalyst, which has both Fenton and visible light phocatalytic activities, was prepared by the sol-gel method. Its catalytic activities were measured by the degradation of phenol through comparative experiments of Vis/Co-TiO2/KHSO5, Co-TiO2/KHSO5 and Vis/Co-TiO2 reaction systems. The Vis/Co-TiO2/KHSO5 process represented the obvious synergistic effect of Fenton and photocatalysis, and the results showed that when the pH=6.9, nKHSO5:nC6H6O=10:1 and mCo-TiO2=1.0 g/L, the degradation rate of phenol reached 100%. Finally, the catalytic mechanism was also studied through XRD, UV-DRS, XPS and phenol degradation tests. |
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| Keywords: | cobalt TiO2 Fenton visible light photocatalysis synergistic effect |
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