Abstract

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In this study, activated carbon was developed from Date stones (DSAC). The experiments were carried out to explore textile dyes (maxilon blue (GRL), and Methyl Orange (MO)) uptake by DSAC. The surface structure of date stones and date stones activated by HNO3 were analyzed by FT-IR, and scanning electronic microscopy (SEM).
The influence of various experimental factors such as initial dye concentration, adsorbent dosage, temperature and pH of dye solution were investigated. The increase in initial pH in the ranges of 2-10 decrease the yields removal of methyl orange dye (MO) while increases of maxilon blue dye GRL on DSAC. The adsorption equilibrium was represented with Langmuir, Freundlich, and Tempkin isotherm models. The Temkin equation was found to have the correlation coefficient value in very good agreement of MO, while Freundlich equation was found to give a good coerelation of GRL dye. Adsorption process was spontaneous and exothermic in nature of MO dye, while endothermic in nature of GRL dye.

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