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Title: | Visible- Light- Induced Generation of H2 by Nanocomposites of Few- Layer TiS2 and TaS2 with CdS Nanoparticles |
Authors: | Gupta, Uttam Rao, Bolla Govinda Maitra, Urmimala Prasad, B. E. Rao, C. N. R. |
Keywords: | Chemistry Graphene Layered Chalcogenides Photocatalysis Turnover Frequency Water Splitting Photocatalytic H-2-Production Performance Hydrogen-Production H-2 Evolution Graphene Water Irradiation Composites Principles Nanosheets Mos2 |
Issue Date: | 2014 |
Publisher: | Wiley-V C H Verlag Gmbh |
Citation: | Gupta, U; Rao, BG; Maitra, U; Prasad, BE; Rao, CNR, Visible- Light- Induced Generation of H2 by Nanocomposites of Few- Layer TiS2 and TaS2 with CdS Nanoparticles. Chemistry-An Asian Journal 2014, 9 (5) 1311-1315, http://dx.doi.org/10.1002/asia.201301537 Chemistry-An Asian Journal 9 5 |
Abstract: | Graphene analogues of TaS2 and TiS2 (3-4layers), prepared by Li intercalation followed by exfoliation in water, were characterized. Nanocomposites of CdS with few-layer TiS2 and TaS2 were employed for the visible-light-induced H-2 evolution reaction (HER). Benzyl alcohol was used as the sacrificial electron donor, which was oxidized to benzaldehyde during the reaction. Few-layer TiS2 is a semiconductor with a band gap of 0.7eV, and its nanocomposite with CdS showed an activity of 1000molh(-1)g(.)(-1) The nanocomposite of few-layer TaS2, in contrast, gave rise to higher activity of 2320molh(-1)g(-1), which was attributed to the metallic nature of few-layer TaS2. The amount of hydrogen evolved after 20 and 16h for the CdS/TiS2 and CdS/TaS2 nanocomposites was 14833 and 28132mol, respectively, with turnover frequencies of 0.24 and 0.57h(-1), respectively. |
Description: | Restricted Access |
URI: | https://libjncir.jncasr.ac.in/xmlui/10572/2349 |
ISSN: | 1861-4728 |
Appears in Collections: | Research Papers (Prof. C.N.R. Rao) |
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