Document Detail


Phenol-photodegradation on ZrO(2). Enhancement by semiconductors.
MedLine Citation:
PMID:  22446768     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
On illumination with light of wavelength 365nm phenol undergoes degradation on the surface of ZrO(2). The rate of degradation enhances linearly with the concentration of phenol and also the light intensity but decreases with increase of pH. The photonic efficiency of degradation is higher with illumination at 254nm than with 365nm. The diffuse reflectance spectral study suggests phenol-sensitized activation of ZrO(2) with 365nm light. TiO(2), Fe(2)O(3), CuO, ZnO, ZnS, Nb(2)O(5) and CdO particles enhance the photodegradation on ZrO(2), indicating inter-particle charge-transfer. Determination of size of the particles under suspension, by light scattering technique, shows agglomeration of particles supporting the proposition of charge-transfer between particles.
Authors:
C Karunakaran; R Dhanalakshmi; P Gomathisankar
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-19
Journal Detail:
Title:  Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy     Volume:  92C     ISSN:  1873-3557     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-3-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9602533     Medline TA:  Spectrochim Acta A Mol Biomol Spectrosc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  201-206     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier B.V. All rights reserved.
Affiliation:
Department of Chemistry, Annamalai University, Annamalainagar 608002, Tamilnadu, India.
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