NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.50A [2011] >
IJC-A Vol.50A(07) [July 2011] >


Title: Environmental remediation of wastewater containing azo dyes with a heterostructured nanophotocatalyst
Authors: Bansal, Priti
Dhir, Amit
Prakash, N Tejo
Sud, Dhiraj
Keywords: Photochemistry
Photocatalyst
Dye degradation
Decolorization
Azo compounds
Wastewater
Issue Date: Jul-2011
Publisher: NISCAIR-CSIR, India
Abstract: The synthesis, characterization and photocatalytic activity of heterostructured ZnO/TiO2 nanophotocatalyst is reported. The photocatalyst ZnO/TiO2 prepared in molar ratio of 1:9 (ZnO: TiO2) and characterized with X-ray diffraction, SEM-EDX and UV–vis data. The photocatalytic activity has been evaluated using acid orange 7 as a model organic compound. The rate of decolorization has been estimated from residual concentration spectrophotometrically and mineralization rate studied by measuring COD. The results have been compared with TiO2-P25 Degussa. ZnO/TiO2 shows promising photocatalytic activity and 12% higher rate of decolourisation of the dye than that of TiO2 -P25 Degussa. The effect of operational parameters such as pH of reaction medium and concentration of dye on the decolorization rate of AO7 in water has also been investigated. The efficiency of the photocatalyst is maximum at pH 7, an important aspect from the view of its commercial application in waste water treatment technology.
Page(s): 991-995
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0975(Online); 0376-4710(Print)
Source:IJC-A Vol.50A(07) [July 2011]

Files in This Item:

File Description SizeFormat
IJCA 50A(7) 991-995.pdf180.79 kBAdobe PDFView/Open
 Current Page Visits: 827 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 586380 since 06-Feb-2009  Last updated on 18-Sep-2014Webmaster: nopr@niscair.res.in