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

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

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
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.

Two-dimensional structureHeterostructurePhotothermal effectPhotocatalystHydrogen evolution

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

展开 >

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 Physics and Optoelectronics,South China University of Technology,Guangzhou 510640,China

School of Chemical Engineering and Energy Technology,Guangdong Provincial Key Laboratory of Distributed Energy Systems,Dongguan University of Technology,Dongguan 523808,China

National Natural science Foundation of ChinaNational Natural science Foundation of ChinaNational Natural science Foundation of ChinaGuangdong Laboratory of Lingnan Modern Agriculture ProjectGuangdong Laboratory of Lingnan Modern Agriculture ProjectGuangzhou Science and Technology Planning ProjectGuangdong Provincial Key Laboratory of Distributed Energy Systems

220781182197204822274059NZ2021029NT20210102022010107282020B1212060075

2024

10.1016/j.jmst.2023.07.010

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)

CSTPCD
影响因子：0.657
ISSN：1005-0302
年,卷(期)：2024.171(4)
  • 47