材料科学技术(英文版)2024，Vol.195Issue(28) ：146-154.DOI:10.1016/j.jmst.2023.11.081

One-step synthesis of seamlessly contacted non-precious metal cocatalyst modified CdS hollow nanoflowers spheres for photocatalytic hydrogen production

Haibo Zhang Chunfeng Shao Zhongliao Wang Jinfeng Zhang Kai Dai
材料科学技术(英文版)2024，Vol.195Issue(28) ：146-154.DOI:10.1016/j.jmst.2023.11.081
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One-step synthesis of seamlessly contacted non-precious metal cocatalyst modified CdS hollow nanoflowers spheres for photocatalytic hydrogen production

Haibo Zhang 1Chunfeng Shao 1Zhongliao Wang 1Jinfeng Zhang 1Kai Dai1
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作者信息

  • 1. Laboratory of Green and Precise Synthetic Chemistry and Applications,Ministry of Education,Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation,Anhui Province Key Laboratory of Intelligent Computing and Applications,Anhui Province Industrial Generic Technology Research Center for Alumics Materials,Huaibei Normal University,Huaibei 235000,China
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Abstract

This study ingeniously synthesized a novel CdS/NiS hollow nanoflower sphere(HNS)using a one-step method to enhance photocatalytic hydrogen production activity.Compared to conventional preparation methods,this approach features seamlessly interfaced contact that facilitates efficient electron transfer across the interface.The internal hollow structure allows for multiple light reflections,maximizing light absorption,while the exterior shell and inner surfaces simultaneously offer active sites for reactions.The modification with non-noble metal NiS enables the extraction of electrons from CdS to the NiS surface,achieving rapid charge separation.Furthermore,adsorption-free energy calculations reveal that the NiS surface is more conducive to photocatalytic hydrogen generation,providing additional reaction active sites.The results demonstrate a hydrogen production rate of 2.18 mmol g-1 h-1 for CdS/NiS HNS,which is 9.48 times greater than that of pristine CdS.This work presents a novel approach for synthesizing seamlessly interfaced contacts between photocatalysts and cocatalysts,offering new insight into efficient one-step synthesis for enhanced photocatalytic performance.

Key words

Seamlessly contacted/Hollow nanoflower sphere/Photocatalytic hydrogen production/Cocatalyst

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基金项目

National Natural Science Foundation of China(22278169)

National Natural Science Foundation of China(51973078)

Excellent Scientific Research and Innovation team of the Education Department of Anhui Province(2022AH010028)

Major projects of the Education Department of Anhui Province(2022AH040068)

Key Foundation of Educational Commission of Anhui Province(2022AH050396)

Key Foundation of Educational Commission of Anhui Province(2022AH050376)

Anhui Provincial Quality Engineering Project(2022sx134)

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78
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