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In situ generated iron oxide nanosheet on iron foam electrode for enhanced electro-Fenton performance toward pharmaceutical wastewater treatment.
Xu, Zhenzhan; Ma, Xiaolin; He, Fengting; Lu, Mingjie; Zhang, Jinqiang; Wang, Shuaijun; Dong, Pei; Zhao, Chaocheng.
Afiliación
  • Xu Z; College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China.
  • Ma X; College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China.
  • He F; College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China.
  • Lu M; Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, PR China.
  • Zhang J; School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia.
  • Wang S; School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, PR China.
  • Dong P; College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China. Electronic address: dongpei@upc.edu.cn.
  • Zhao C; College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China. Electronic address: zhaochch0821@163.com.
J Hazard Mater ; 465: 133193, 2024 03 05.
Article en En | MEDLINE | ID: mdl-38103298
ABSTRACT
Electro-Fenton (EF) is considered to be an effective technology for the purification of organic wastewater containing antibiotics, but the construction of accessible and efficient heterogeneous EF catalytic materials still faces challenges. In this study, an iron foam-derived electrode (FeOx/if-400) was prepared by a simple method (chemical oxidation combined heat treatment). The fabricated electrode presented great EF degradation efficiency under wide pH range (almost completely removing 50 mg L-1 TNZ within 60 min) and maintained great stability after consecutive operation (>95% removal after six cycles). Also, the FeOx/if-400 electrode showed good purification ability for pharmaceutical wastewater as evaluated by the quadrupole time-of-flight mass spectrometry and the three-dimensional excitation-emission matrix fluorescence spectroscopy. Based on experimental results, characterization analysis, and density functional theory (DFT) calculations, the EF reaction mechanism of FeOx/if-400 electrode and the organics degradation pathways in simulated and real matrices were proposed. Significantly, the biotoxicity assessment of the degradation intermediate products was revealed by ECOSAR software and relative inhibition of E. coli, which fully proved the environmental friendliness of the EF process by the FeOx/if-400 cathode. This work provides a green and effective EF system, showing a promising application potential in the field of organic wastewater treatment containing antibiotic contaminants.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Contexto en salud: 2_ODS3 / 3_ND Problema de salud: 2_quimicos_contaminacion / 3_neglected_diseases / 3_zoonosis Asunto principal: Contaminantes Químicos del Agua / Compuestos Férricos / Purificación del Agua Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Contexto en salud: 2_ODS3 / 3_ND Problema de salud: 2_quimicos_contaminacion / 3_neglected_diseases / 3_zoonosis Asunto principal: Contaminantes Químicos del Agua / Compuestos Férricos / Purificación del Agua Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article
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