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Abstract
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In this study, the potentiality of Sulfonated-Oxidized activated carbon as an adsorbent for removal of Methylene Blue (MB), Crystal Violet (CV) and Thionin Acetate (Th) from aqueous solutions was investigated. The characteristics of the synthesized adsorbent was examined by FTIR and SEM techniques. Varying experimental conditions like contact time, adsorbent dosage, initial pH were studied to find the optimum adsorption conditions. The results showed that the adsorption process is too fast and after about 1 minute more than 95% of dyes were completely removed. The experimental data were well represented by Langmuir adsorption isotherm and the maximum adsorption capacities of MB,CV, Th dyes were calculated as 416.7 , 416.6 and 400.0 mg.g -1 respectively, which is considerably higher than the adsorption capacities of reported adsorbent in the literature. Simultaneous removal of the reported dyes was also carried out and more than 98% removal efficiency was obtained, so Sulfonated-oxidized activated carbon appears as an economical and effectual adsorbent for removal of MB,CV,Th from industrial waste waters .
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