首页|Boosting Peroxymonosulfate Activation via Co-Based LDH-Derived Magnetic Catalysts:A Dynamic and Static State Assessment of Efficient Radical-Assisted Electron Transfer Processes

Boosting Peroxymonosulfate Activation via Co-Based LDH-Derived Magnetic Catalysts:A Dynamic and Static State Assessment of Efficient Radical-Assisted Electron Transfer Processes

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Heterogeneous catalysts promoting efficient production of reactive species and dynamically stabilized electron transfer mechanisms for peroxomonosulfates(PMS)still lack systematic investigation.Herein,a more stable magnetic layered double oxides(CFLDO/N-C),was designed using self-polymerization and high temperature carbonization of dopamine.The CFLDO/N-C/PMS system effectively activated PMS to remove 99％(k=0.737 min-1)of tetracycline(TC)within 10 min.The CFLDO/N-C/PMS system exhibited favorable resistance to inorganic anions and natural organics,as well as satisfactory suitability for multiple pollutants.The magnetic properties of the catalyst facilitated the separation of catalysts from the liquid phase,resulting in excellent reproducibility and effectively reducing the leaching of metal ions.An electronic bridge was constructed between cobalt(the active platform of the catalyst)and PMS,inducing PMS to break the O-O bond to generate the active species.The combination of static analysis and dynamic evolution confirmed the effective adsorption of PMS on the catalyst surface as well as the strong radical-assisted electron transfer process.Eventually,we further identified the sites where the reactive species attacked the TC and evaluated the toxicity of the intermediates.These findings offer innovative insights into the rapid degradation of pollutants achieved by transition metals in SR-AOPs and its mechanistic elaboration.

advanced oxidation processdegradation mechanismselectron transportlayered double hydroxidereactive species

Wenhan Yang、Junming Xia、Fanfan Shang、GeGe Yang、Bin Wang、Hairui Cai、Lingyun Jing、Hao Zhu、Shengchun Yang、Chao Liang、Guosheng Shao

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MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter,School of Physics,National Innovation Platform(Center)for Industry-Education Integration of Energy Storage Technology,Xi'an Jiaotong University,Xi'an 710000,China

State Key Laboratory of Organic Electronics and Information Displays &Institute of Advanced Materials(1AM),Nanjing University of Posts &Telecommunications,9 Wenyuan Road,Nanjing 210023,China

College of Petroleum and Chemical Engineering,Lanzhou University of Technology,Lanzhou 730050,China

Key Laboratory of Western China's Environmental Systems(Ministry of Education)and Gansu Engineering Research Center of Fine Particles Pollution Control Technology and Equipment,College of Earth and Environmental Sciences,Lanzhou University,Lanzhou 730000,China

State Center for International Cooperation on Designer Low-Carbon &Environmental Materials(CDLCEM),School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001,China

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Natural Science Foundation of ChinaShaanxi Fundamental Science Research Project for Mathematics and PhysicsYoung Talent Fund of Xi'an Association for Science and TechnologyNational Natural Science Foundation of Shaanxi ProvinceNational Natural Science Foundation of Shaanxi Provinceproject of Innovative Team of Shaanxi ProvinceChina Fundamental Research Funds for the Central Universities

6210529222JSY0159592023130202021GXLH-Z-02020JZ-022020TD-001

2024

10.1002/eem2.12701

能源与环境材料(英文)

能源与环境材料(英文)

ISSN：
年,卷(期)：2024.7(5)