CdOaCdS nanocomposites with enhanced photocatalytic activity for hydrogen generation from water

Nanocomposites of CdOaCdS have been prepared in ethylene glycol water mixture followed by heating at 300 degree C. TEM and XRD studies confirmed the atomic scale mixing of CdO and CdS nanoparticles, leading to the formation of CdSO3 phase at the interfacial region between CdO and CdS. Photocatalytic...

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Published in:International journal of hydrogen energy 2013-11, Vol.38 (35), p.15012-15018
Main Authors: Kahane, Shital, Sasikala, R, Vishwanadh, B, Sudarsan, V, Mahamuni, Shailaja
Format: Article
Language:English
Subjects:
Cadmium sulfides
Ethylene glycol
Hydrogen-based energy
Nanocomposites
Nanoparticles
Photocatalysis
Steady state
Surface area
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container_issue 35
container_start_page 15012
container_title International journal of hydrogen energy
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creator Kahane, Shital
Sasikala, R
Vishwanadh, B
Sudarsan, V
Mahamuni, Shailaja
description Nanocomposites of CdOaCdS have been prepared in ethylene glycol water mixture followed by heating at 300 degree C. TEM and XRD studies confirmed the atomic scale mixing of CdO and CdS nanoparticles, leading to the formation of CdSO3 phase at the interfacial region between CdO and CdS. Photocatalytic studies for hydrogen generation from water show an enhanced activity for CdOaCdS composites compared to individual components namely CdO or CdS nanoparticles. Based on optical absorption, surface area measurements, steady state and time resolved fluorescence studies, it is established that, enhanced absorption in the visible region, higher surface area and increase in lifetime of the charge carriers are responsible for the observed increase in hydrogen yield from water when composite sample was used as the photocatalyst compared to individual components. The composite sample when combined with Pt as co-catalyst exhibit a large increase in the photocatalytic activity.
doi_str_mv 10.1016/j.ijhydene.2013.09.077
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source ScienceDirect Freedom Collection
subjects Cadmium sulfides
Ethylene glycol
Hydrogen-based energy
Nanocomposites
Nanoparticles
Photocatalysis
Steady state
Surface area
title CdOaCdS nanocomposites with enhanced photocatalytic activity for hydrogen generation from water
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