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Title: CdO-CdS nano-composites as improved photo-catalysts for the generation of hydrogen from water

CdO-CdS nanocomposites were prepared by polyol method followed by heating at 300°C. XRD study confirmed the atomic scale mixing of CdO and CdS nanoparticles, leading to the formation of CdSO{sub 3} phase at the interfacial region between CdO and CdS. The enhancement in photo-catalytic activity for hydrogen generation from water is observed in case of CdO-CdS nanocomposites compared to individual CdS and CdO nanoparticles. Based on XRD, steady state and time resolved luminescence studies and surface area measurements, it is determined that, the fine mixing of CdS and CdO, higher surface area of the composite sample 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 photo-catalyst compared to individual components.
Authors:
;  [1] ; ;  [2]
  1. Department of Physics, University of Pune, Pune-411 007 (India)
  2. Chemistry Division, Bhabha Atomic Research Center, Trombay, Mumbai- 400 085 (India)
Publication Date:
OSTI Identifier:
22269440
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1591; Journal Issue: 1; Conference: 58. DAE solid state physics symposium 2013, Patiala, Punjab (India), 17-21 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 36 MATERIALS SCIENCE; CADMIUM OXIDES; CADMIUM SULFIDES; CATALYSTS; CHARGE CARRIERS; COMPOSITE MATERIALS; HYDROGEN; INTERSTITIAL HYDROGEN GENERATION; LUMINESCENCE; NANOSTRUCTURES; SURFACE AREA; X-RAY DIFFRACTION