Silver as solid-state electron mediator in MoS2/Ag-AgVO3 Z-Scheme heterostructures for photocatalytic H-2 generation
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
View Archive Info| Field | Value | |
| Title |
Silver as solid-state electron mediator in MoS2/Ag-AgVO3 Z-Scheme heterostructures for photocatalytic H-2 generation
|
|
| Creator |
Bera, Susmita
Ghosh, Srabanti Basu, Rajendra Nath |
|
| Subject |
Electronics
|
|
| Description |
Heterostructured photocatalysts have attracted enoromous research interest in H-2 generation through water splitting because of highly efficient interfacial charge-transfer characteristics of nanoarchitectures. Herein, Ag nanoparticles decorated AgVO3 nanorods and MoS2 nanosheets are combined to fabricate MoS2/Ag-AgVO3 heterostructures,in which Ag NPs act as a solid-state electron mediator. Owing to unique nanoarchitecture, MoS2/Ag-AgVO3 exhibited the best H-2 generation (reaches 38.6 mmol g(-1) in 2 h) whichis four times and twenty times higher than Ag-AgVO3 and bare MoS2 under visible light respectively. Transient photocurrent and Nyquist spectra reveal that the enhanced photocatalytic performance of MoS2/Ag-AgVO3 is mainly attributed to its effective carrier separation and transfer through the surfaces. Moreover, the band structures of the materials have been calculated from Mott-Schottky study, demonstrated a Z-scheme interfacial charge-transfer mechanism. This study describes a promising approach for harvesting solar energy to generate H-2 from water by designing an efficient Ag mediated Z-scheme heterostuctures. (C) 2020 Elsevier B.V. All rights reserved.
|
|
| Publisher |
Elsevier
|
|
| Date |
2020-07
|
|
| Type |
Article
PeerReviewed |
|
| Format |
application/pdf
|
|
| Identifier |
http://cgcri.csircentral.net/4912/1/bera.pdf
Bera, Susmita and Ghosh, Srabanti and Basu, Rajendra Nath (2020) Silver as solid-state electron mediator in MoS2/Ag-AgVO3 Z-Scheme heterostructures for photocatalytic H-2 generation. Journal of Alloys and Compounds, 830. Art No-154527. ISSN 0925-8388 |
|
| Relation |
http://cgcri.csircentral.net/4912/
|
|