Surface disorder engineering in ZnCdS for cocatalyst free visible light driven hydrogen production

Ha, Enna1; Ruan, Shuhong2; Li, Danyang1; Zhu, Yuanmin3; Chen, Yanping2; Qiu, Jiangyuan2; Chen, Zhaohui2; Xu, Tingting2; Su, Jingyun2; Wang, Luyang2; Hu, Junqing1

2021-07-01

10.1007/s12274-021-3587-5

Nano Research   影响因子和分区

1998-0124

1998-0000

Metal chalcogenide solid solution, especially ZnCdS, has been intensively investigated in photocatalytic H-2 generation due to their cost-effective synthetic procedure and adjustable band structures. In this work, we report on the defect engineering of ZnCdS with surface disorder layer by simple room temperature Li-ethylenediamine (Li-EDA) treatment. Experimental results confirm the formation of unusual Zn and S dual vacancies, where rich S vacancies (V-S) served as electron trapping sites, meanwhile Zn vacancies (V-Zn) served as hole trapping sites. The refined structure significantly facilitates the photo charge carrier transfer and improves photocatalytic properties of ZnCdS. The disordered ZnCdS shows a highest photocatalytic H-2 production rate of 33.6 mmol.g(-1).h(-1) under visible light with superior photocatalytic stabilities, which is 7.3 times higher than pristine ZnCdS and 7 times of Pt (1 wt.%) loaded ZnCdS.

ZnCdS solid solution Li-EDA disorder engineering dual vacancies photocatalytic H-2 reduction

SCI ; EI

英语

其他

National Natural Science Foundation of China[21902104,21701135] ; Natural Science Foundation of Top Talent of SZTU[2019205,2019108101003,20200201] ; Foundation for Young Innovative Talents in Higher Education of Guangdong[2018KQNCX401] ; Shenzhen Science and Technology Research Project[JCYJ20180508152903208] ; Open Project Program of Key Laboratory for Analytical Science of Food Safety and Biology, Ministry of Education[FS2004]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied

WOS:000669174800001

TSINGHUA UNIV PRESS

20212710589356

Binary alloys ; Cost effectiveness ; Hydrogen production ; Image enhancement ; Light ; Lithium alloys ; Photocatalytic activity ; Semiconductor alloys ; Zinc

Gas Fuels:522 ; Zinc and Alloys:546.3 ; Alkali Metals:549.1 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Light/Optics:741.1 ; Industrial Economics:911.2

2-s2.0-85109016570

Web of Science

1.Shenzhen Technol Univ, Coll Hlth Sci & Environm Engn, Shenzhen 518118, Peoples R China
2.Shenzhen Technol Univ, Coll New Mat & New Energies, Shenzhen 518118, Peoples R China
3.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China

Ha, Enna,Ruan, Shuhong,Li, Danyang,et al. Surface disorder engineering in ZnCdS for cocatalyst free visible light driven hydrogen production[J]. Nano Research,2021,15(2):996-1002.

Ha, Enna.,Ruan, Shuhong.,Li, Danyang.,Zhu, Yuanmin.,Chen, Yanping.,...&Hu, Junqing.(2021).Surface disorder engineering in ZnCdS for cocatalyst free visible light driven hydrogen production.Nano Research,15(2),996-1002.

Ha, Enna,et al."Surface disorder engineering in ZnCdS for cocatalyst free visible light driven hydrogen production".Nano Research 15.2(2021):996-1002.