材料科学技术(英文版)2024，Vol.173Issue(6) ：137-148.DOI:10.1016/j.jmst.2023.08.008

Rational design of Ce-doped CdS/N-rGO photocatalyst enhanced interfacial charges transfer for high effective degradation of tetracycline

Huijie Wang Yang Wan Binrong Li Jian Ye Jiahao Gan Jiejing Liu Xin Liu Xianghai Song Weiqiang Zhou Xin Li Pengwei Huo
材料科学技术(英文版)2024，Vol.173Issue(6) ：137-148.DOI:10.1016/j.jmst.2023.08.008
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Rational design of Ce-doped CdS/N-rGO photocatalyst enhanced interfacial charges transfer for high effective degradation of tetracycline

Huijie Wang 1Yang Wan 1Binrong Li 2Jian Ye 1Jiahao Gan 1Jiejing Liu 1Xin Liu 1Xianghai Song 1Weiqiang Zhou 1Xin Li 3Pengwei Huo1
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作者信息

  • 1. Institute of Green Chemistry and Chemical Technology,School of Chemistry & Chemical Engineering,Jiangsu University,Zhenjiang 212013,China
  • 2. National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology,School of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou 215009,China
  • 3. Institute of Biomass Engineering,Key Laboratory of Energy Plants Resource and Utilization,Ministry of Agriculture and Rural Affairs,South China Agricultural University,Guangzhou 510642,China
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Abstract

The charge carrier separation efficiency and the adsorption capacity of the photocatalyst usually affect the degradation rate of antibiotics.Herein,Cerium-doped leaf-like CdS(Ce-CdS)modified with ultrathin N-doped rGO(N-rGO)composites were successfully constructed(Ce-CdS/N-rGO)to investigate the re-moval efficiency of tetracycline(TC).X-ray photoelectron spectroscopy(XPS)and photoelectrochemical results revealed that Ce ions doped in CdS acting as the electron capture sites facilitated the interfacial charge transfer.Theoretical calculation(DFT)results indicated that the interfacial effect between Ce-CdS and ultrathin N-rGO promoted the transfer of photogenerated electrons under the synergistic effect be-tween the doping and interface modification strategy.The optimized Ce5-CdS/N-rGO20 composites had the maximum TC removal capability(94.5％)and maintained a stable cycling performance.In addition,the adsorption-driven photocatalytic degradation pathway of TC was studied through mass spectrometry(MS)and in-situ Fourier transform infrared spectroscopy(in-situ FTIR).This study will provide an effective strategy for the construction of efficient photocatalytic composites for wastewater treatment.

Key words

Interfacial charges transfer/Adsorption-driven photocatalytic/degradation/Synergistic effect/Doping strategy/Leaf-like CdS

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基金项目

National Natural Science Foundation of China(22078131)

National Natural Science Foundation of China(22108102)

Science and Technology Planning Social Development Project of Zhenjiang City(SH2021013)

Natural Science Foundation of the Jiangsu Higher Education Institutions of China(21KJB430036)

Jiangsu Provincial Founds for Young Scholars(BK20210782)

出版年

2024
材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCD
影响因子：0.657
ISSN：1005-0302
参考文献量70
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