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Perovskite CaZrO3 for efficient ozonation treatment of organic pollutants in wastewater
Han, Peiwei1,2; Lv, Hongxia1; Li, Xiaogang1; Wang, Shengzhe2; Wu, Zhilian3,4; Li, Xiangnan5; Mu, Zhao1; Li, Xinjun5; Sun, Chenglin2; Wei, Huangzhao2; Ma, Lei1
2021-06-07
发表期刊CATALYSIS SCIENCE & TECHNOLOGY
ISSN2044-4753
卷号11期号:11页码:3697-3705
通讯作者Wei, Huangzhao(whzhdicpwtg@dicp.ac.cn) ; Ma, Lei(malei@bipt.edu.cn)
摘要Catalytic ozonation with nano-perovskite oxides is a more efficient and advanced oxidation process for the mineralization of organic pollutants. In this study, by regulating the amount of polyethylene glycol during the synthesis of CaZrO3 perovskite-type oxides by the co-precipitation method, efficient surface oxygen vacancies were formed in CaZrO3. Owing to the presence of abundant oxygen vacancies, CaZrO3 modified by PEG exhibited a much higher catalytic activity than unmodified CaZrO3. It was further discovered from the EPR results that the main active oxygen species depend on the surface structure of CaZrO3. The variation of oxygen vacancies on the surface of the catalyst with PEG addition stimulated ozone decomposition to generate a large number of superoxide radicals. This study not only proposed a method to improve the activity of the catalyst, but also further studied the reaction mechanism of CaZrO3 catalyzed ozonation. It provides a solid theoretical basis for the industrial application of catalytic ozonation technology.
DOI10.1039/d0cy02404j
关键词[WOS]CATALYTIC OZONATION ; OXYGEN VACANCIES ; OXIDE CATALYSTS ; ACTIVE-SITE ; OXIDATION ; ACID ; DEGRADATION ; PERFORMANCE ; ACTIVATION ; DECOMPOSITION
收录类别SCI
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Physical
WOS记录号WOS:000658854600005
出版者ROYAL SOC CHEMISTRY
引用统计
被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/33515
专题中国科学院广州能源研究所
通讯作者Wei, Huangzhao; Ma, Lei
作者单位1.Beijing Inst Petrochem Technol, Beljing Key Lab Fuels Cleaning & Adv Catalyt Emis, Coll Chem Engn, Beijing 102617, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Ningbo Fengcheng Adv Energy Mat Res Inst Co Ltd, Ningbo 315500, Zhejiang, Peoples R China
4.Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
5.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
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GB/T 7714
Han, Peiwei,Lv, Hongxia,Li, Xiaogang,et al. Perovskite CaZrO3 for efficient ozonation treatment of organic pollutants in wastewater[J]. CATALYSIS SCIENCE & TECHNOLOGY,2021,11(11):3697-3705.
APA Han, Peiwei.,Lv, Hongxia.,Li, Xiaogang.,Wang, Shengzhe.,Wu, Zhilian.,...&Ma, Lei.(2021).Perovskite CaZrO3 for efficient ozonation treatment of organic pollutants in wastewater.CATALYSIS SCIENCE & TECHNOLOGY,11(11),3697-3705.
MLA Han, Peiwei,et al."Perovskite CaZrO3 for efficient ozonation treatment of organic pollutants in wastewater".CATALYSIS SCIENCE & TECHNOLOGY 11.11(2021):3697-3705.
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