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Cation deviated stoichiometry Ca1.1ZrO3 perovskite as an efficient ozonation catalyst for m-cresol wastewater degradation

文献类型：期刊论文

作者Han, Peiwei2,3; Li, Xiangnan2; Jin, Chengyu1; Tan, Xiangdong1; Sun, Wenjing1; Wang, Shengzhe1; Ding, Fuchen3; Li, Xinjun2; Jin, Haibo3; Sun, Chenglin1
刊名CHEMICAL ENGINEERING JOURNAL
出版日期2022-02-01
卷号429页码:11
关键词Cation deviated stoichiometry Perovskite oxide Ozonation catalyst CaZrO3 Excellent stability
ISSN号1385-8947
DOI10.1016/j.cej.2021.132218
通讯作者Wei, Huangzhao(whzhdicpwtg@dicp.ac.cn) ; Ma, Lei(malei@bipt.edu.cn)
英文摘要Highly efficient and stable catalysts for continuous catalytic ozonation of organic pollutants are of great significance in industrial applications. Perovskites have been seen as promising environmental catalysts because of their tunable defect structures and electronic properties. This work reports on A-site cation stoichiometry deviation as an effective engineering strategy to improve the crystallinity of perovskite CaZrO3, as well as its catalytic ozonation activity. High pure phase Ca1.1ZrO3 nanocrystals were successfully synthesized using a co-precipitation calcination method and evaluated as ozonation catalysts for m-cresol degradation. Surprisingly, Ca1.1ZrO3 exhibits a higher total organic carbon (TOC) removal rate, ozone utilization rate, and conversion rate of m-cresol than the stoichiometric of CaZrO3 and other conventional transition metal catalysts. In addition, Ca1.1ZrO3 shows an almost constant conversion rate of m-cresol (100%) and TOC removal rate (similar to 82%) during uninterrupted 100-h catalytic ozonation m-cresol degradation, demonstrating its excellent catalytic stability. These outstanding catalytic activity and stability toward ozonation are attributed to the synergistic meliorated oxygen octahedron structure, including Zr cation and contiguous coordinated oxygen, by introducing a non-stoichiometry defect into the perovskite. Thus, Ca1.1ZrO3 presents an advanced oxidation process of reactive oxygen species (.OH, O-2(.)- , O-1(2)). These results were verified by in situ X-ray diffraction, in situ Fourier transform infrared spectroscopy, electron paramagnetic resonance, and density functional theory. This work strongly believes that Ca1.1ZrO3 can be an efficient, stable, and an economic catalyst for catalytic ozonation.
WOS关键词A-SITE ; OXIDATION ; MECHANISM ; INSIGHT ; NANOCARBONS ; PERFORMANCE ; COMPOSITES ; PHENOL ; OZONE ; ACID
资助项目Dalian Science and Technology Innovation Fund Project[2019J12SN69] ; Youth Innovation Promotion Association CAS[2020190] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21021101] ; National Key Research and Development Program of China[2019YFA0705803] ; Scientific Research Common Program of Beijing Municipal Commission of Education[KM202010017006] ; Beijing Natural Science Foundation[8214056]
WOS研究方向Engineering
语种英语
WOS记录号WOS:000729399900003
出版者ELSEVIER SCIENCE SA
资助机构Dalian Science and Technology Innovation Fund Project ; Youth Innovation Promotion Association CAS ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; Scientific Research Common Program of Beijing Municipal Commission of Education ; Beijing Natural Science Foundation
源URL[http://ir.giec.ac.cn/handle/344007/35464]  
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.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Univ Sci & Technol China, Sch Energy Sci & Engn, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
3.Beijing Inst Petrochem Technol, Beijing Key Lab Fuels Cleaning & Adv Catalyt Emis, Coll New Mat & Chem Engn, Beijing 102617, Peoples R China
推荐引用方式
GB/T 7714		 Han, Peiwei,Li, Xiangnan,Jin, Chengyu,et al. Cation deviated stoichiometry Ca1.1ZrO3 perovskite as an efficient ozonation catalyst for m-cresol wastewater degradation[J]. CHEMICAL ENGINEERING JOURNAL,2022,429:11.
APA Han, Peiwei.,Li, Xiangnan.,Jin, Chengyu.,Tan, Xiangdong.,Sun, Wenjing.,...&Ma, Lei.(2022).Cation deviated stoichiometry Ca1.1ZrO3 perovskite as an efficient ozonation catalyst for m-cresol wastewater degradation.CHEMICAL ENGINEERING JOURNAL,429,11.
MLA Han, Peiwei,et al."Cation deviated stoichiometry Ca1.1ZrO3 perovskite as an efficient ozonation catalyst for m-cresol wastewater degradation".CHEMICAL ENGINEERING JOURNAL 429(2022):11.

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来源：广州能源研究所

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