Optimization, isotherm and kinetics studies of azo dye adsorption on eggshell membrane

Authors : Ayşe DİNÇER, Mervecan SEVİLDİK, Tülin AYDEMİR

Pages : 52-60

Doi:10.32571/ijct.538736

View : 41 | Download : 9

Publication Date : 2019-06-28

Article Type : Research Paper

Abstract :      Eggshell membrane insert ignore into journalissuearticles values(ESM); was used as an adsorbent for adsorption of reactive red 195 insert ignore into journalissuearticles values(RR195); and reactive black 5 insert ignore into journalissuearticles values(RB5); dyes from aqueous solutions. The experimental conditions were optimized via batch system experiments for maximum azo dyes removal. Adsorption of the dyes was pH dependent highly, and the maximum adsorption of RR195 and RB5 occurred at pH 3.0 and 2.0, respectively. For both dyes, the adsorption process was seen to be obeyed pseudo-second order kinetic  and the Langmuir isotherm models. Maximum adsorption capacities insert ignore into journalissuearticles values(Q max ); of ESM for RR195 dye and RB5 were found as 76.9 and 333.33 mg g -1 , respectively. The thermodynamic parameters were calculated and the adsorption of the dyes was found to be as exothermic and spontaneous .  Moreover, the structural characterization of the ESM was performed by FTIR and SEM analysis.
Keywords : Eggshell membrane, reactive red 195, reactive black 5, adsorption

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