Open AccessElectrochemical Degradation of Reactive Red 195 from its Aqueous Solution using RuO2/IrO2/TaO2 Coated Titanium Electrodes
Author(s) -
M. Umadevi,
R. Rathinam,
S. Poornima,
T. Santhi,
S. Pattabhi
Publication year - 2021
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2021.23330
Subject(s) - electrolysis , chemistry , electrolyte , aqueous solution , titanium , electrochemistry , electrode , degradation (telecommunications) , supporting electrolyte , current density , electrolytic cell , inorganic chemistry , nuclear chemistry , chemical engineering , telecommunications , physics , organic chemistry , quantum mechanics , computer science , engineering
The electrochemical oxidation of reactive red 195 from aqueous solution was carried out using titaniumelectrode in an electrochemical cell reactor. The effect of different operating parameters such as dyeconcentration, current density, electrolyte concentration, pH and stirring speed were investigated. TheUV-visible spectroscopy confirmed the removal and degradation of reactive red 195. Three differentsupporting electrolytes such as NaCl, NaNO3 and Na2SO4 were used for electrolysis and NaCl werefound to be effective for the removal of reactive red 195 dye from its aqueous solution. The maximumpercentage of colour removal was 94%, under the optimum operating conditions with electrolyte(NaCl) concentration 0.075 M, current density 25 mA/cm2, pH 5 and stirring speed of 250 rpm. Thismethod was found to be relatively more effective to the conventional treatment techniques.