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作者:

Xu, Mengdie (Xu, Mengdie.) | Wei, Jia (Wei, Jia.) (学者:魏佳) | Chen, Xiujuan (Chen, Xiujuan.) | Pan, Guoping (Pan, Guoping.) | Li, Jiamei (Li, Jiamei.) | Xing, Luyi (Xing, Luyi.) | Zhang, Yifei (Zhang, Yifei.) | Li, Yanan (Li, Yanan.) | Wang, Zhaoxu (Wang, Zhaoxu.) | Li, Jun (Li, Jun.)

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EI Scopus SCIE

摘要:

The ubiquitous and ineffective treatment of antibiotics in aquatic systems leads to serious environmental problems, threatening ecology and human health. Herein, layered double metal hydroxides (LDH) and biochar (BC) were successfully combined through a facile hydrothermal method to prepare a novel pH-universal electric Fenton (EF) cathode (MnFe-LDH@BC). The developed MnFe-LDH@BC-EF system exhibited superior perfor-mance in the degradation of tetracycline (TC) (94.2%) than both of MnFe-LDH-EF (64.1%) and BC-EF system (67.0%) and showed a well-pleasing performance in a wide pH range. It was proposed that the nanostructures of LDH favored the multivalent cycle of Fe and Mn, promoting the electron transfer of BC as well as the release of Fe2+, leading to continuously generation of extensive free radicals and non-radicals. The co-existing ions (Cl-, NO3-, CO32-, HCO3- and H2PO4-) had different impact on the removal of TC. The studied system exhibited satis-factory degradation of various selected contaminants as well as fantastic stability in successive cycles. The possible degradation pathways were proposed and the toxicity of intermediate products were assessed by the Estimation Program Interface (EPI) Suite analysis. This work demonstrated the great potential of the developed cathode in water treatment area and provided insights into the utilization of biomass waste resources.

关键词:

Biochar Toxicity assessment Layered double hydroxide Antibiotic Heterogeneous electro-Fenton

作者机构:

  • [ 1 ] [Xu, Mengdie]Beijing Univ Technol, Coll Architecture Engn, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 2 ] [Wei, Jia]Beijing Univ Technol, Coll Architecture Engn, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 3 ] [Pan, Guoping]Beijing Univ Technol, Coll Architecture Engn, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 4 ] [Li, Jiamei]Beijing Univ Technol, Coll Architecture Engn, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 5 ] [Xing, Luyi]Beijing Univ Technol, Coll Architecture Engn, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 6 ] [Zhang, Yifei]Beijing Univ Technol, Coll Architecture Engn, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 7 ] [Li, Yanan]Beijing Univ Technol, Coll Architecture Engn, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 8 ] [Li, Jun]Beijing Univ Technol, Coll Architecture Engn, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 9 ] [Chen, Xiujuan]Mem Univ Newfoundland, Fac Engn & Appl Sci, St John, NL A1B 3X5, Canada
  • [ 10 ] [Wang, Zhaoxu]Hunan Univ Sci & Technol, Hunan Prov Key Lab Controllable Preparat & Funct, Key Lab Theoret Organ Chem & Funct Mol, Minist Educ,Sch Chem & Chem Engn, Xiangtan 411201, Peoples R China

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来源 :

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING

ISSN: 2213-2929

年份: 2022

期: 5

卷: 10

7 . 7

JCR@2022

7 . 7 0 0

JCR@2022

JCR分区:1

中科院分区:2

被引次数:

WoS核心集被引频次: 26

SCOPUS被引频次: 33

ESI高被引论文在榜: 0 展开所有

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