Repository of Research and Investigative Information

Repository of Research and Investigative Information

Ilam University of Medical Sciences

Adsorption of a textile dye in aqueous phase using mesoporous activated carbon prepared from Iranian milk vetch

Mon Jun 27 16:43:59 2022

(2014) Adsorption of a textile dye in aqueous phase using mesoporous activated carbon prepared from Iranian milk vetch. Journal of the Taiwan Institute of Chemical Engineers. pp. 1783-1791. ISSN 1876-1070

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Abstract

The aim of the present study was to prepare activated carbon from milk vetch and utilize as-prepared activated carbon for sequestering Acid orange 7 (AO7) as an azo dye from batch flow mode experimental reactors. The result of SEM analysis confirmed porous structure for the activated carbon in which the major portion of the pore diameter size distribution was lower than 100 nm with frequency of 67. As results, the adsorption of AO7 was decreased from 45.90 to 33.35 mg/g with increasing initial pH from 3 to 11, respectively. Increasing adsorbent dosage from 0.5 to 1.5 g/L resulted in increasing the decolorization efficiency () from 59.96 to 89.40, respectively. The experimental data were best represented by the pseudo-second order kinetic model (R-2 = 0.9865) regarding intraparticle diffusion rate. Among studied isotherm models, the adsorption of AO7 onto activated carbon obeyed Langmuir model (R-2 = 0.9907) with a maximum adsorption capacity of about 99 mg/g. The obtained value for mean free energy (0.25 kJ/mol) indicated that the adsorption of AO7 is physical in nature. Comparatively, as-prepared activated carbon derived from milk vetch had more adsorption capacity than that of commercial activated carbon for the adsorption of AO7 at the same operational conditions. (C) 2014 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

Item Type: Article
Creators:
CreatorsEmail
Noorimotlagh, Z.UNSPECIFIED
Soltani, R. D. C.UNSPECIFIED
Khataee, A. R.UNSPECIFIED
Shahriyar, S.UNSPECIFIED
Nourmoradi, H.UNSPECIFIED
Keywords: Adsorption Activated carbon Mesoporous structure Acid orange 7 Isotherm Kinetic basic dye reactive dyes equilibrium removal sludge waste optimization biosorption pith char Engineering
Divisions:
Page Range: pp. 1783-1791
Journal or Publication Title: Journal of the Taiwan Institute of Chemical Engineers
Journal Index: ISI
Volume: 45
Number: 4
Identification Number: https://doi.org/10.1016/j.jtice.2014.02.017
ISSN: 1876-1070
Depositing User: مهندس مهدی شریفی
URI: http://eprints.medilam.ac.ir/id/eprint/659

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