Nickel-Based Bifunctional Cocatalyst to Enhance CdS Photocatalytic Hydrogen Production

doi:10.1021/acs.langmuir.3c02855

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Nickel-Based Bifunctional Cocatalyst to Enhance CdS Photocatalytic Hydrogen Production
	Chen, Haoyu 1; Ye, Kun 1; Zhang, Wenya 1; Fan, Lele 2; Kong, Fanjie 3; Zhao, Rongfang 4; Chen, Ming 1
刊名	LANGMUIR
	2023-12-14
卷号	39 期号:51 页码:18935-18945
ISSN号	0743-7463
DOI	10.1021/acs.langmuir.3c02855
通讯作者	Chen, Ming(chenming@yzu.edu.cn)
英文摘要	The design of nanocomposites as a light-capturing system applied in photocatalytic water splitting is an emerging area of research. In our study, a simple in situ photodeposition method was proposed for the synthesis of CdS nanoflowers modified by nickel-based bifunctional, i.e., Ni/Ni(OH)(2), cocatalysts. The introduction of cocatalysts has demonstrated a notable enhancement in the photocatalytic hydrogen evolution efficiency of CdS. The quantity of cocatalysts supported on CdS played an important role in governing the light absorption capability and photocatalytic efficacy. Ni-CdS-10 showed the best photocatalytic activity of 30.51 mmol g(-1) h(-1), which was 1.8 times and 2.6 times higher activity than Pt-CdS-1 wt % and pure CdS, respectively. Mechanism studies with UV-vis DRS, photoluminescence, and Mott-Schottky plots revealed the intrinsic electric field created at the p-n Ni(OH)(2)/CdS junctions, which can effectively implement the transport and separation of photoinduced carriers. From linear sweep voltammetry, electrochemical impedance spectroscopy, and DFT calculation, both Ni(OH)(2) and Ni can effectively decrease the Gibbs free energies of hydrogen adsorption and reduce the overpotential of hydrogen evolution. As a result, the efficiency of generating H-2 through photocatalysis experienced significant improvement, and the participation of bifunctional cocatalysts further reduced the photocorrosion of CdS, enhanced stability, improved low price, and efficient photocatalyst production.
WOS关键词	H-2 PRODUCTION ACTIVITY ; HIERARCHICAL PHOTOCATALYST ; CHARGE SEPARATION ; NI NANOPARTICLES ; EVOLUTION ; HETEROJUNCTION ; NANORODS ; GENERATION ; REDUCTION ; COMPOSITE
WOS研究方向	Chemistry ; Materials Science
语种	英语
WOS记录号	WOS:001132927800001
资助机构	Natural Science Foundation of Shandong Province ; Natural Science Research Project of Jiangsu Higher Education Institutions ; Shandong Provincial Natural Science Foundation - Priority Academic Program Development of Jiangsu Higher Education Institutions
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/33114]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者	Chen, Ming
作者单位	1.Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Peoples R China 2.Yancheng Inst Technol, Key Lab Adv Technol Environm Protect Jiangsu Prov, Yancheng 224051, Peoples R China 3.Yancheng Inst Technol, Dept Phys, Yancheng 224051, Peoples R China 4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn & Technol, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Chen, Haoyu,Ye, Kun,Zhang, Wenya,et al. Nickel-Based Bifunctional Cocatalyst to Enhance CdS Photocatalytic Hydrogen Production[J]. LANGMUIR,2023,39(51):18935-18945.
APA	Chen, Haoyu.,Ye, Kun.,Zhang, Wenya.,Fan, Lele.,Kong, Fanjie.,...&Chen, Ming.(2023).Nickel-Based Bifunctional Cocatalyst to Enhance CdS Photocatalytic Hydrogen Production.LANGMUIR,39(51),18935-18945.
MLA	Chen, Haoyu,et al."Nickel-Based Bifunctional Cocatalyst to Enhance CdS Photocatalytic Hydrogen Production".LANGMUIR 39.51(2023):18935-18945.