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Ultrathin 2D type-II p-n heterojunctions La2Ti2O7/In2S3 with efficient charge separations and photocatalytic hydrogen evolution under visible light illumination
Hua, Erbing; Jin, Shu; Wang, Xiaorong; Ni, Shuang; Liu, Gang; Xu, Xiaoxiang
2019-05-15
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
ISSN0926-3373
Volume245Pages:733-742
AbstractIn this work, novel 2D type-II p-n heterojunctions La2Ti2O7/In2S3 have been fabricated. The heterojunctions exhibit much improved photocatalytic activity over individual moieties and their physical mixtures in which 18 fold increment in hydrogen production has been achieved under visible light illumination (W. a. 400 nm). Their superior activities stem from intimate face-to-face contact between La2Ti2O7 and In2S3 in the heterojunctions which guarantee facile charge interchange. Photoelectrochemical analysis suggests that efficient charge separations occur at the interfaces of the heterojunctions and contributes to a prolonged charge lifetime as well as the much enhanced photocatalytic activities. Such a simple strategy by fabricating ultrathin type-H p-n heterojunctions also warrant promising applications in other areas such as optoelectronics, sensors etc. whereby efficient charge separations are needed.
Keyword2D materials Type-II heterojunction Photocatalyst Water splitting Charge separations
Indexed BySCI
Language英语
WOS IDWOS:000467661700073
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81090
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Hua, Erbing,Jin, Shu,Wang, Xiaorong,et al. Ultrathin 2D type-II p-n heterojunctions La2Ti2O7/In2S3 with efficient charge separations and photocatalytic hydrogen evolution under visible light illumination[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2019,245:733-742.
APA Hua, Erbing,Jin, Shu,Wang, Xiaorong,Ni, Shuang,Liu, Gang,&Xu, Xiaoxiang.(2019).Ultrathin 2D type-II p-n heterojunctions La2Ti2O7/In2S3 with efficient charge separations and photocatalytic hydrogen evolution under visible light illumination.APPLIED CATALYSIS B-ENVIRONMENTAL,245,733-742.
MLA Hua, Erbing,et al."Ultrathin 2D type-II p-n heterojunctions La2Ti2O7/In2S3 with efficient charge separations and photocatalytic hydrogen evolution under visible light illumination".APPLIED CATALYSIS B-ENVIRONMENTAL 245(2019):733-742.
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