标题:Ce3+ self-doped CeOx/FeOCl: an efficient Fenton catalyst for phenol degradation under mild conditions
作者:Zhang, Jian; Yang, Mengxue; Lian, Ye; Zhong, Mingliang; Sha, Jingquan; Liu, Guodong; Zhao, Xinfu; Liu, Shaojie
作者机构:[Zhang, Jian; Yang, Mengxue; Lian, Ye; Zhong, Mingliang; Sha, Jingquan; Liu, Guodong] Jining Univ, Dept Chem & Chem Engn, Qufu 273100, Peoples R China 更多
通讯作者:Zhang, Jian;Zhang, J;Liu, GD;Zhao, XF
通讯作者地址:[Zhang, J; Liu, GD]Jining Univ, Dept Chem & Chem Engn, Qufu 273100, Peoples R China;[Zhao, XF]Qilu Univ Technol, Shandong Acad Sci, Adv Mat Inst, Shan 更多
来源:DALTON TRANSACTIONS
出版年:2019
卷:48
期:10
页码:3476-3485
DOI:10.1039/c8dt04269a
摘要:Herein, a novel Ce3+ self-doped CeOx/FeOCl composite was successfully prepared by a facile method for the first time, which showed remarkable catalytic activity as a Fenton catalyst in the degradation of phenol under the conditions of a neutral solution, room temperature and natural light. In CeOx/FeOCl, 5.23% CeOx is the optimal condition, and the degradation constant (k) of CeOx /FeOCl is greater than that of FeOCl by a factor of 10.8. CeOCl in the composite plays a more important role than CeO2, which greatly increases the production of center dot OH radicals. Furthermore, the Ce-doping in FeOCl accelerates the separation efficiency of the photogenerated electron-hole pairs. The increased surface area and surface potential of CeOx/FeOCl than those of FeOCl effectively promote the adsorption of phenol, which is 4.05 times that of FeOCl. According to the DFT calculations, the Ce-doping in FeOCl enhances the structural stability by increasing the strength of the chemical bonds. The adsorption of H2O2 with Ce3+ is energetically favorable, which promotes the production of center dot OH radicals. A synergistic mechanism for the enhanced catalytic performance of CeOx/FeOCl is proposed.
收录类别:EI;SCOPUS;SCIE
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85062424127&doi=10.1039%2fc8dt04269a&partnerID=40&md5=9d0a4783564c11c1a69e892f570a5624
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