A novel S-scheme MoS2/CdIn2S4 flower-like heterojunctions with enhanced photocatalytic degradation and H-2 evolution activity
Zhang, Bin1; Shi, Huanxian1; Hu, Xiaoyun3; Wang, Yishan2; Liu, Enzhou1; Fan, Jun1
刊名JOURNAL OF PHYSICS D-APPLIED PHYSICS
2020-05-13
卷号53期号:20
关键词MoS2 CdIn2S4 photodegradation H-2 evolution S-scheme
ISSN号0022-3727;1361-6463
DOI10.1088/1361-6463/ab7563
产权排序3
英文摘要

A novel flower-like MoS2/CdIn2S4 composite was designed and synthesized via a simple in-situ hydrothermal method, for the first time. Under visible light irradiation, the 10% MoS2/CdIn2S4 hybrid exhibited the strongest photocatalytic activities for both degradation of dye (Rhodamine B) and hydrogen generation. The RhB (10 mg L-1) can be almost degraded in 30 min, and the degradation rate constant (k) of 10% MoS2/CdIn2S4 can up to 0.13595 min(-1), which is about 2.6 and 73.1 times to CdIn2S4 (0.05311 min(-1)) and MoS2 (0.00186 min(-1)). Under simulated sunlight irradiation, the hydrogen evolution rate of 10% MS/CIS can reach to 1868.19 mu mol center dot g(-1)center dot h(-1), which is 2.26 and 6.2 times higher than that of the pure CdIn2S4 (827.09 mu mol center dot g(-1)center dot h(-1)) and MoS2 (303.1 mu mol center dot g(-1)center dot h(-1)), respectively. Additionally, the 10% MS/CIS exhibits a superior stability in the recycling experiment. The enhanced photocatalytic performance can be attributed to that the in-situ loading of MoS2 on the CdIn2S4 can provide the larger surface area, strengthen the visible-light response range and accelerate the charge separation. A conceivable S-scheme charge transfer mechanism was proposed to reveal the photocatalytic reaction process in this system.

语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000521371100001
内容类型期刊论文
源URL[http://ir.opt.ac.cn/handle/181661/93347]  
专题西安光学精密机械研究所_瞬态光学技术国家重点实验室
通讯作者Liu, Enzhou
作者单位1.Northwest Univ, Sch Chem Engn, Xian 710069, Peoples R China
2.Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China
3.Northwest Univ, Sch Phys, Xian 710069, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Bin,Shi, Huanxian,Hu, Xiaoyun,et al. A novel S-scheme MoS2/CdIn2S4 flower-like heterojunctions with enhanced photocatalytic degradation and H-2 evolution activity[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2020,53(20).
APA Zhang, Bin,Shi, Huanxian,Hu, Xiaoyun,Wang, Yishan,Liu, Enzhou,&Fan, Jun.(2020).A novel S-scheme MoS2/CdIn2S4 flower-like heterojunctions with enhanced photocatalytic degradation and H-2 evolution activity.JOURNAL OF PHYSICS D-APPLIED PHYSICS,53(20).
MLA Zhang, Bin,et al."A novel S-scheme MoS2/CdIn2S4 flower-like heterojunctions with enhanced photocatalytic degradation and H-2 evolution activity".JOURNAL OF PHYSICS D-APPLIED PHYSICS 53.20(2020).
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