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author:

Rao, Yansen (Rao, Yansen.) [1] | Sun, Meng (Sun, Meng.) [2] | Zhou, Bingzheng (Zhou, Bingzheng.) [3] | Wang, Zhongpeng (Wang, Zhongpeng.) [4] | Yan, Tao (Yan, Tao.) [5] | Shao, Yu (Shao, Yu.) [6]

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Abstract:

Constructing novel surface microstructures for photocatalytic materials could significantly enhance the photocatalytic hydrogen production rate from water splitting. In this work, novel 2D/3D structured CuCo2S4/CdIn2S4 p-n heterojunction photocatalysts for water splitting were successfully prepared by a solvothermal method. The coupling of a 2D CuCo2S4 nanoplate on the surface of 3D flower-like CdIn2S4 microspheres has strengthened the visible light absorption and promoted the charge separation efficiency due to their tight contacting area. The obtained CuCo2S4/CdIn2S4 (CSCIS-2) photocatalyst exhibited a hydrogen production rate of 1320 μmol g-1 h-1, which was fivefold of that for pure CdIn2S4. Additionally, cyclic tests demonstrated improved photoactivity stability of the samples. A series of photoelectrochemical characterizations confirmed the effective suppression of charge carrier recombination in CuCo2S4/CdIn2S4 composite catalysts. Finally, a rational photocatalytic mechanism was proposed based on the semiconductor band theory. This work contributes to the enrichment of sulfide-based research and applications in photocatalysis. © 2024 American Chemical Society.

Keyword:

Cadmium compounds Cobalt compounds Copper compounds Heterojunctions Hydrogen production Indium sulfide Light absorption Photocatalytic activity Sulfur compounds

Community:

  • [ 1 ] [Rao, Yansen]School of Water Conservancy and Environment, University of Jinan, Jinan; 250022, China
  • [ 2 ] [Sun, Meng]School of Water Conservancy and Environment, University of Jinan, Jinan; 250022, China
  • [ 3 ] [Zhou, Bingzheng]School of Water Conservancy and Environment, University of Jinan, Jinan; 250022, China
  • [ 4 ] [Wang, Zhongpeng]School of Water Conservancy and Environment, University of Jinan, Jinan; 250022, China
  • [ 5 ] [Yan, Tao]School of Water Conservancy and Environment, University of Jinan, Jinan; 250022, China
  • [ 6 ] [Shao, Yu]State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, Fuzhou University, Fuzhou; 350116, China

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Source :

ACS Applied Energy Materials

Year: 2024

Issue: 13

Volume: 7

Page: 5457-5466

5 . 5 0 0

JCR@2023

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ESI Highly Cited Papers on the List: 0 Unfold All

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Chinese Cited Count:

30 Days PV: 5

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