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作者:

Huang, Pengfei (Huang, Pengfei.) | Lei, Jiawei (Lei, Jiawei.) | Sun, Zhirong (Sun, Zhirong.) (学者:孙治荣) | Hu, Xiang (Hu, Xiang.)

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摘要:

Antibiotic contamination has already been one of hazards to aquatic environment due to the abuse of antibiotics. Metal-organic frameworks (MOFs) are known as a kind of promising porous material for solving the environmental deterioration. In this article, the physicochemical and electrochemical properties of a series of porous copper oxide carbon materials (CuOx-C) synthesized by carbonizing Cu-BTC were compared. Due to the suitable carbonization temperature, CuOx-C-550 N, whose geometric structure was similar to Cu-BTC, possessed a multiscale pore structure containing many mesopores and partial macropores in accordance with the pore size distribution curves. More copper/copper oxides were introduced toimproving the electrochemical ability, evidence by XRD, XPS, CV and EIS characterization. Moreover, the degradation of ceftazidime (CAZ) through anodic oxidation was discussed. In AO/CuOx-C-550 N system, the effects of current, solution pH, initial CAZ concentration and Na2SO4 concentration were analyzed. CAZ removal rate reached 100% within 20 min under the optimal condition and a good electrocatalytic ability with 90% CAZ removal after 20 runs indicated a good electrochemical stability of CuOx-C-550 N. Furthermore, the degradation mechanism and pathway of CAZ were proposed. The Cu(II)/Cu(I) oxidation-reduction couples on the anodic surface contribute to the efficiently selective degradation of cephalosporins for CuOx-C-550 N. Overall, this study shows a good method to design and prepare a new MOF derivative for the remediation of aquatic contamination. © 2020 Elsevier Ltd

关键词:

Copper oxides Copper metallography Physicochemical properties Pore structure Anodic oxidation Metal-Organic Frameworks Organometallics Sodium sulfate Carbonization Pore size Antibiotics Deterioration Degradation

作者机构:

  • [ 1 ] [Huang, Pengfei]College of Chemical Engineering, Beijing University of Chemical Technology, Beijing; 100029, China
  • [ 2 ] [Lei, Jiawei]College of Chemical Engineering, Beijing University of Chemical Technology, Beijing; 100029, China
  • [ 3 ] [Sun, Zhirong]College of Environmental & Energy Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 4 ] [Hu, Xiang]College of Chemical Engineering, Beijing University of Chemical Technology, Beijing; 100029, China

通讯作者信息:

  • [hu, xiang]college of chemical engineering, beijing university of chemical technology, beijing; 100029, china

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来源 :

Chemosphere

ISSN: 0045-6535

年份: 2021

卷: 268

8 . 8 0 0

JCR@2022

ESI学科: ENVIRONMENT/ECOLOGY;

ESI高被引阀值:94

JCR分区:1

被引次数:

WoS核心集被引频次:

SCOPUS被引频次: 29

ESI高被引论文在榜: 0 展开所有

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