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Surface hydroxyl groups mediated g-C 3 N 4-Modified perovskite catalytic ozone oxidation interface activation and silicon salt resistance mechanism

文献类型：期刊论文

作者Wang, Shengzhe2,3,4; Li, Xianru4; Xue, Weiyang4; Gu, Bin4; Han, Peiwei1,3; Yao, Chenxing3,4; Wei, Huangzhao3,4; Sun, Chenglin4
刊名CHEMICAL ENGINEERING JOURNAL
出版日期2024-06-15
卷号490页码:10
关键词Water pollution control Ozone catalytic oxidation Surface hydroxyl groups regulating ROS pathways Silicon salt resistance
ISSN号1385-8947
DOI10.1016/j.cej.2024.151302
通讯作者Wei, Huangzhao(whzhdicpwtg@dicp.ac.cn) ; Sun, Chenglin(clsun@dicp.ac.cn)
英文摘要Elucidating the activation mechanisms of ozone at the catalyst interface and enhancing the catalyst ' s resistance to salt are crucial for its practical application. In this study, LaFe 0.26 Mn 0.74 O 3- delta -g-C 3 N 4 (LFMO-CN) perovskite catalysts were prepared for catalytic ozonation treatment of silicon-containing m-cresol wastewater. The LFMO50CN achieved 100 % m-cresol removal and 70.2 % mineralization. Compared to LFMO, the silicon resistance of LFMO-50CN was improved by 2.4 times. The interface regulation of CN promotes the generation of hydroxyl groups on the surface of LFMO-50CN. Density functional theory (DFT) calculation revealed that surface hydroxyl groups regulated reactive oxygen radicals (ROS) generation, reducing the energy barrier for & sdot; OH production. The main pathway for the generation of & sdot; OH was O 3 -> HO 3 & sdot; -> & sdot; OH. Furthermore, LFMO-50CN exhibited excellent stability over 15 cycles. This study systematically investigated the role of surface hydroxyl groups in controlling ozone activation and silicon salt resistance mechanisms, providing insights for catalyst design and application.
WOS关键词ORGANIC POLLUTANTS ; OZONATION ; WATER ; DEGRADATION ; REMOVAL ; FABRICATION ; RADICALS ; INSIGHT ; COPPER ; MN
资助项目Youth Innovation Promotion Associa- tion CAS[2020190] ; National Key R & D Program of China[2023YFE0101000] ; National Key Research and Development Pro- gram of China[2019YFA0705803] ; Science and Technology Projects in Liaoning Province[2021JH2/10300006]
WOS研究方向Engineering
语种英语
WOS记录号WOS:001235605700001
出版者ELSEVIER SCIENCE SA
资助机构Youth Innovation Promotion Associa- tion CAS ; National Key R & D Program of China ; National Key Research and Development Pro- gram of China ; Science and Technology Projects in Liaoning Province
源URL[http://ir.giec.ac.cn/handle/344007/41888]  
专题中国科学院广州能源研究所
通讯作者Wei, Huangzhao; Sun, Chenglin
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
2.Natl Univ Singapore, Dept Biomed Engn, 15 Kent Ridge Crescent, Singapore 119276, Singapore
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Shengzhe,Li, Xianru,Xue, Weiyang,et al. Surface hydroxyl groups mediated g-C 3 N 4-Modified perovskite catalytic ozone oxidation interface activation and silicon salt resistance mechanism[J]. CHEMICAL ENGINEERING JOURNAL,2024,490:10.
APA Wang, Shengzhe.,Li, Xianru.,Xue, Weiyang.,Gu, Bin.,Han, Peiwei.,...&Sun, Chenglin.(2024).Surface hydroxyl groups mediated g-C 3 N 4-Modified perovskite catalytic ozone oxidation interface activation and silicon salt resistance mechanism.CHEMICAL ENGINEERING JOURNAL,490,10.
MLA Wang, Shengzhe,et al."Surface hydroxyl groups mediated g-C 3 N 4-Modified perovskite catalytic ozone oxidation interface activation and silicon salt resistance mechanism".CHEMICAL ENGINEERING JOURNAL 490(2024):10.

入库方式： OAI收割

来源：广州能源研究所

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