Levafix yellow CA (LY) is a reactive azo dye widely used in textile industries and its removal from wastewater is difficult due to complex structural properties. This paper deals with a hybrid electrochemical degradation-chemical adsorption approach for the removal of LY from aqueous solution. The dye solution containing sodium chloride (NaCl) electrolyte was first electrolyzed using graphite electrodes, followed by adsorption onto magnesium oxide (MgO) or zinc oxide (ZnO) nanoparticles. MgO was found to be a better adsorbent than ZnO. The progress of dye removal was monitored by CV, UV-VIS spectrophotometry, total organic carbon (TOC) measurements and also by Mass spectral analysis. Almost 100% decolourization was achieved by electrolysis while about 90.3 % TOC removal was achieved through adsorption with MgO nanoparticles.
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