Significantly enhanced charge transfer efficiency and surface reaction on NiP2/g-C3N4 heterojunction for photocatalytic hydrogen evolution

Xiaoqing Yan; Hua An; Zihao Chen; Guidong Yang

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Significantly enhanced charge transfer efficiency and surface reaction on NiP₂/g-C₃N₄ heterojunction for photocatalytic hydrogen evolution

Updated：2026-01-06

- Significantly enhanced charge transfer efficiency and surface reaction on NiP₂/g-C₃N₄ heterojunction for photocatalytic hydrogen evolution
- Significantly enhanced charge transfer efficiency and surface reaction on NiP₂/g-C₃N₄ heterojunction for photocatalytic hydrogen evolution
- 中国化学工程学报（英文版） 2022年43卷第3期页码：31-39
- Affiliations：
  
  XJTU-Oxford International Joint Laboratory for Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University,Xi'an,China,710049
- Author bio：
- Funds：
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  中图分类号：
- 纸质出版：2022
- Accepted：
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Xiaoqing Yan, Hua An, Zihao Chen, 等. Significantly enhanced charge transfer efficiency and surface reaction on NiP₂/g-C₃N₄ heterojunction for photocatalytic hydrogen evolution[J]. 中国化学工程学报（英文版）, 2022,43(3):31-39.

/g-C
Xiaoqing Yan, Hua An, Zihao Chen, 等. Significantly enhanced charge transfer efficiency and surface reaction on NiP₂/g-C₃N₄ heterojunction for photocatalytic hydrogen evolution[J]. 中国化学工程学报（英文版）, 2022,43(3):31-39. DOI：

/g-C DOI：

摘要

Abstract

In this work

a novel NiP

/g-C

heterojunction

via

homogeneous precipitation method assisted by thermal phosphorization reaction was designed and constructed

and the optimized sample showed the excellent photocatalytic H

evolution activity under visible-light irradiation

which was nearly 112 times higher than that of pristine g-C

sample. Experimental characterizations and DFT calculations demonstrated that the NiP

nanoparticles covered on the g-C

surface can form a built-in electric field at the interface to accelerate the transfer of photoexcited electrons from g-C

to NiP

crucial for hindering the recombination of electron-hole pairs. Moreover

the energy barrier of hydrogen evolution reaction can also vastly reduce when combined NiP

and g-C

to construct NiP

/g-C

heterojunction. This work represents a method through combing experimental and theoretical tools to thoroughly investigate the mechanism of photocatalytic process.

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