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

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外文摘要：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.

外文关键词：

Seamlessly contactedHollow nanoflower spherePhotocatalytic hydrogen productionCocatalyst

作者：

Haibo Zhang、Chunfeng Shao、Zhongliao Wang、Jinfeng Zhang、Kai Dai

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作者单位：

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

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaExcellent Scientific Research and Innovation team of the Education Department of Anhui ProvinceMajor projects of the Education Department of Anhui ProvinceKey Foundation of Educational Commission of Anhui ProvinceKey Foundation of Educational Commission of Anhui ProvinceAnhui Provincial Quality Engineering Project

项目编号：

22278169519730782022AH0100282022AH0400682022AH0503962022AH0503762022sx134

出版年：

2024

DOI：

10.1016/j.jmst.2023.11.081

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)：2024.195(28)