材料科学技术(英文版)2024，Vol.171Issue(4) ：1-9.DOI:10.1016/j.jmst.2023.07.010

Construction of 2D/2D Ti3C2Tx MXene/CdS heterojunction with photothermal effect for efficient photocatalytic hydrogen production

T.Y.Huang Z.Yang S.Y.Yang Z.H.Dai Y.J.Liu J.H.Liao G.Y.Zhong Z.J.Xie Y.P.Fang S.S.Zhang
材料科学技术(英文版)2024，Vol.171Issue(4) ：1-9.DOI:10.1016/j.jmst.2023.07.010
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Construction of 2D/2D Ti3C2Tx MXene/CdS heterojunction with photothermal effect for efficient photocatalytic hydrogen production

T.Y.Huang 1Z.Yang 1S.Y.Yang 1Z.H.Dai 1Y.J.Liu 1J.H.Liao 2G.Y.Zhong 3Z.J.Xie 2Y.P.Fang 1S.S.Zhang4
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作者信息

  • 1. Key Laboratory for Biobased Materials and Energy of Ministry of Education,Guangdong Laboratory for Lingnan Modem Agriculture,College of Materials and Energy,South China Agricultural University,Guangzhou 510643,China
  • 2. School of Physics and Optoelectronics,South China University of Technology,Guangzhou 510640,China
  • 3. School of Chemical Engineering and Energy Technology,Guangdong Provincial Key Laboratory of Distributed Energy Systems,Dongguan University of Technology,Dongguan 523808,China
  • 4. Key Laboratory for Biobased Materials and Energy of Ministry of Education,Guangdong Laboratory for Lingnan Modem Agriculture,College of Materials and Energy,South China Agricultural University,Guangzhou 510643,China;School of Chemical Engineering and Energy Technology,Guangdong Provincial Key Laboratory of Distributed Energy Systems,Dongguan University of Technology,Dongguan 523808,China
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Abstract

The insensitivity of semiconductors to visible and infrared light is a key constraint on the utilization of light energy in photocatalytic reactions.Constructing photocatalysts with full-spectrum absorption through surface engineering is an effective approach to fully harnessing light energy in semiconductor materials.Herein,a novel stable Ti3C2Tx MXene/CdS heterojunction catalyst is obtained by in-situ epitax-ial growth of two-dimensional(2D)CdS nanosheets on 2D MXene interface via a solvothermal method.The exceptional light absorption properties of MXene confer outstanding full-spectrum driven photocat-alytic hydrogen evolution capability upon the heterogeneous catalyst.The unique 2D/2D structure effec-tively mitigated the recombination of photogenerated carriers,enhancing the photocatalytic performance of the catalyst.Moreover,the composite catalyst exhibits a significantly higher surface temperature of 80.4 ℃ under visible light irradiation at an intensity of 0.1 W/cm2,which is 1.84 times higher than that of CdS.Under irradiation of visible and near infrared light,the composite catalyst with photothermal ef-fect demonstrates a remarkable hydrogen evolution rate of 65.4 mmol g-1 h-1,which is 7.2 times higher than that of CdS catalyst.This study introduces a novel approach for constructing full-spectrum absorp-tion catalysts and expands the application of the photothermal effect in photocatalytic hydrogen evolution research.

Key words

Two-dimensional structure/Heterostructure/Photothermal effect/Photocatalyst/Hydrogen evolution

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基金项目

National Natural science Foundation of China(22078118)

National Natural science Foundation of China(21972048)

National Natural science Foundation of China(22274059)

Guangdong Laboratory of Lingnan Modern Agriculture Project(NZ2021029)

Guangdong Laboratory of Lingnan Modern Agriculture Project(NT2021010)

Guangzhou Science and Technology Planning Project(202201010728)

Guangdong Provincial Key Laboratory of Distributed Energy Systems(2020B1212060075)

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47
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