Optimization, isotherm and kinetics studies of azo dye adsorption on eggshell membrane
Abstract
Eggshell membrane (ESM) was used as an adsorbent for adsorption of reactive red 195 (RR195) and reactive black 5 (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 (Qmax) 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
References
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Details
Primary Language
English
Subjects
Chemical Engineering
Journal Section
Research Article
Authors
Ayşe Dinçer
*
0000-0001-6158-1775
Türkiye
Mervecan Sevildik
This is me
0000-0001-6883-8748
Türkiye
Tülin Aydemir
0000-0002-2968-4456
Türkiye
Publication Date
June 28, 2019
Submission Date
March 12, 2019
Acceptance Date
May 18, 2019
Published in Issue
Year 2019 Volume: 3 Number: 1
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