Title
Electrochemical oxidation of acid brown 98 using Ti/Ru0.3 Ti0.7 O2 composite anode
Date Issued
01 October 2018
Access level
open access
Resource Type
journal article
Author(s)
Zeb S.
Hussain S.
Khan H.A.
Ali Z.
Khan N.
Khan K.I.
Ali F.
Gul S.
State University of São Paulo (UNESP)
State University of São Paulo (UNESP)
Publisher(s)
Electrochemical Science Group
Abstract
Textile and leather industries effluent containing dyes are one of the major concern to flora and fauna. The electrochemical oxidation of a synthetic wastewater containing, acid brown 98 (AB 98) was investigated in a laboratory scale reactor containing Ti/Ru0.3Ti0.7O2 composite anode. The degradation experiments were carried out at ambient temperature and pressure under different influential parameters such pH, different electrolytes, current density. The dye concentration and extent of mineralization were observed using UV-Visible Spectroscopy and Total Organic Carbon (TOC) analysis. The anode was characterized in the dye wastewater containing the appropriate amount of NaCl and Na2SO4 salts using cyclic voltammetry. The result demonstrate that the electrochemical oxidation of the synthetic dye solution increases with the decrease in pH and increase in the concentration of chlorine ions and current density (5-20 mAcm-2). It is also further determined that 67% TOC was removed using a 0.1 M, NaCl as an electrolyte and a 20mAcm-2 current density, under 60 minutes of electrolysis. The energy consumption (kWhm-3) of the degradation is minimum at low current densities and high NaCl concentrations.. The kinetic study reveals that AB 98 degradation followed pseudo 1st order kinetics.
Start page
9428
End page
9440
Volume
13
Issue
10
Language
English
OCDE Knowledge area
Ciencias del medio ambiente Electroquímica
Scopus EID
2-s2.0-85055291048
Source
International Journal of Electrochemical Science
ISSN of the container
14523981
Sponsor(s)
The authors would like to thanks Prof. Artur de Jesus Motheo of Sao Carlos Institute of Chemistry, University of Sao Paulo, Brazil for providing electrodes. Shakeel Zeb is grateful to Higher Education Commission of Pakistan (HEC) for providing Laptop for the Master study and thesis compilation.
Sources of information: Directorio de Producción Científica Scopus