Journal
CHEMICAL PHYSICS
Volume 434, Issue -, Pages 1-10Publisher
ELSEVIER
DOI: 10.1016/j.chemphys.2014.02.007
Keywords
Core-shell; XRD; TEM; BET; DFT; Photocatalytic
Funding
- DST, Govt. of India
- Department of Science and Technology (DST), India [SR/NM/NS-98/2010 (G)]
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We employed an efficient and cost effective method to synthesize core-shell TiO2/SnO2 and inverted core-shell SnO2/TiO2 nanocomposites and investigated their visible light photo catalytic activity for degradation of dye methyl orange. We carried out techniques such as XRD and TEM for the structural verification while UV-Visible and photoluminescence spectra for the optical characterization. BET is done to reveal pore diameter and surface area of prepared nanosystems. We have also performed DFT based calculation using VASP 5.2 to calculate density of states. The analyses of density of states indicate a higher photocatalytic efficiency of core-shell TiO2/SnO2 nanostructures and which we indeed observe through experiment as well. (C) 2014 Elsevier B. V. All rights reserved.
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