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Nitrogen-doped titanium dioxide/schwertmannite nanocomposites as heterogeneous photo-Fenton catalysts with enhanced efficiency for the degradation of bisphenol A

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Journal of environmental Sciences 2024年第9期143卷 1-11页

作者： Xing-Xing Qiao Yu-Hang Xu Xiang-Ji Liu Sai-Le Chen Zhou Zhong Ya-Feng Li Jian Lü Fujian Provincial Key Laboratory of Soil environmental Health and Regulation College of Resources and EnvironmentFujian Agriculture and Forestry UniversityFuzhou 350002China State Key Laboratory of Photocatalysis on Energy and Environment Fuzhou UniversityFuzhou 350116China

Potential health risks related to environmental endocrine disruptors(EEDs)have aroused research hotspots at the forefront of water treatment ***,nitrogen-doped titanium dioxide/schwertmannite nanocomposites(N-TiO_(2)/SCH)have been successfully developed as heterogeneous catalysts for the degradation of typical EEDs via photo-Fenton *** to the sustainable Fe(Ⅲ)/Fe(Ⅱ)conversion induced by photoelectrons,as-prepared N-TiO_(2)/SCH nanocomposites exhibit much enhanced efficiency for the degradation of bisphenol A(BPA;ca.100% within 60 min under visible irradiation)in a wide pH range of 3.0-7.8,which is significantly higher than that of the pristine schwertmannite(ca.74.5%)or N-TiO_(2)(ca.10.8%).In this photo-Fenton system,the efficient degradation of BPA is mainly attributed to the oxidation by hydroxyl radical(·OH)and singlet oxygen(^(1)O_(2)).Moreover,the possible catalytic mechanisms and reaction pathway of BPA degradation are systematically investigated based on analytical and photoelectrochemical *** work not only provides a feasible means for the development of novel heterogeneous photo-Fenton catalysts,but also lays a theoretical foundation for the potential application of mineral-based materials in wastewater treatment.

关键词： Titanium dioxide Schwertmannite Fenton reaction environmental endocrine disruptors Photocatalysis

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The potential risks of emerging pollutants:Forms,features and management actions

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Ecological Economy 2022年第2期18卷 156-160页

作者： CHEN Shu-peng Shanghai Maritime University Shanghai 201306CHINA

Emerging pollutants are synthetic or chemical or micro-organic contaminants unregulated,which constitutes potent risks and dangers for human environment and,finally,its ***,due to their potential risks in production,use and contamination,both states and the public are hardly aware of their potential damages done to health and the environment before it is a little too *** forms of pollutants are emerging for modern world with unprecedented risks worthy of *** present article explores the categories of newly emerging pollutants,analyses their features and attempts to come up with technological and managerial solutions in managing emerging pollutants of such nature as organic pollutants,environmental endocrine disruptors,*** paper also provides suggestions in taking actions leading to effective management and treatment of the emerging pollutants.

关键词： emerging pollutants(EPs) pollutants management organic pollutants environmental endocrine disruptors

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