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Dehalogenation of chlorobromophenol by ozonation using heterogeneous catalyst

Paper Topic: 
Advanced Oxidation Processes
 
Volume: 
 
Issue: 
 

Pages :
242 - 250

Corresponing Author: 
sureshmskt@gmail.com
 
Authors: 
Ndabankulu V.O., Maddila S. and Jonnalagadda S.B.
Paper ID: 
gnest_01866
Paper Status: 
Published
Date Paper Accepted: 
29/02/2016
Paper online: 
14/04/2016
Abstract: 

Ozone initiated oxidation of 2-chloro,4-bromophenol, (CBP) in aqueous system catalyzed by 1, 2.5 and 5% loadings of 1:1 molar ratio of Ce-Zr oxide on TiO2 were studied. The synthesized catalysts were characterized via BET, ICP, PXRD, TPD, TEM, SEM, and FT-IR analysis. The powder XRD data revealed that Ce-Zr exists in three different phases on titania. SEM and SEM-EDX confirmed well dispersed metal oxides on titania surface. 1H NMR, IR and GC-MS positively confirm hydroxyfumaric acid (HFA) and oxalic acid (OA) as reaction products. 5% Ce-Zr/TiO2 showed best performance with100 % conversion in 4 h. 

 

Keywords: 
Chlorobromophenol; Ozonation; Ceria/Zirconia, TiO2; Hydroxyfumaric acid; Oxalic acid.

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