High-temperature sulfurized synthesis of MnxCd1-xS_S-kaolin composites for efficient solar-light driven H2 evolution

doi:10.1016/j.colsurfa.2021.127772

CORC > 青海盐湖研究所 > 中国科学院青海盐湖研究所 > 盐湖资源与化学实验室

	High-temperature sulfurized synthesis of MnxCd1-xS_S-kaolin composites for efficient solar-light driven H2 evolution
	Peng, Hao; Du, Yaohan; Zheng, Xiaogang; Wen, Jing
刊名	COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
	2021-10
卷号	632
ISSN号	0927-7757
DOI	10.1016/j.colsurfa.2021.127772
英文摘要	To extend the application of kaolin in solar-light induced water splitting, MnS-CdS solid solution modified Sdoped kaolin (MnxCd1-xS/S-kaolin) composites were in-situ prepared via the high-temperature sulfurization. Compared with kaolin and S-doped kaolin, MnS and CdS greatly enhanced H2 evolution rate, especially MnxCd1-xS. H2 evolution rate was affected by Mn/Cd molar ratio, Mn0.5Cd0.5S content, and sulfurized temperature. The optimal 4-Mn0.5Cd0.5S/S-kaolin with a Mn/Cd molar ratio of 1:1 and a nominal Mn0.5Cd0.5S content of 28% treated at 823 K could obtain the highest H2 evolution rate (4955.27 mu mol g- 1 h- 1), which was 49.33 and 25.28 folds higher than kaolin and S-doped kaolin, respectively. H2 evolution capacity of 4Mn0.5Cd0.5S/S-kaolin decreased from 24,476.79 to 24,262.35 mu mol g-1 after five cycles. It's ascribed to the tight interface among S-doped kaolin, MnS and CdS for the efficient transfer and migration of photo-excited charges, and the sufficient active sites formed in S-doped kaolin and S-defected Mn0.5Cd0.5S were suitable for the efficient photon utilization and visible-light harvesting.
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/34579]
专题	青海盐湖研究所_盐湖资源与化学实验室
推荐引用方式 GB/T 7714	Peng, Hao,Du, Yaohan,Zheng, Xiaogang,et al. High-temperature sulfurized synthesis of MnxCd1-xS_S-kaolin composites for efficient solar-light driven H2 evolution[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2021,632.
APA	Peng, Hao,Du, Yaohan,Zheng, Xiaogang,&Wen, Jing.(2021).High-temperature sulfurized synthesis of MnxCd1-xS_S-kaolin composites for efficient solar-light driven H2 evolution.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,632.
MLA	Peng, Hao,et al."High-temperature sulfurized synthesis of MnxCd1-xS_S-kaolin composites for efficient solar-light driven H2 evolution".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 632(2021).