Literature DB >> 28965968

Adsorption of malachite green from aqueous solution by using novel chitosan ionic liquid beads.

Faizah Naseeruteen1, Nur Shahirah Abdul Hamid1, Faiz Bukhari Mohd Suah2, Wan Saime Wan Ngah1, Faizatul Shimal Mehamod3.   

Abstract

Chitosan ionic liquid beads were prepared from chitosan and 1-butyl-3-methylimidazolium based ionic liquids to remove Malachite Green (MG) from aqueous solutions. Batch adsorption experiments were carried out as a function of initial pH, adsorbent dosage, agitation time and initial MG concentration. The optimum conditions were obtained at pH 4.0, 0.008g of adsorbent dosage and 20min of agitation time were utilized in the kinetic and isotherm studies. Three kinetic models were applied to analyze the kinetic data and pseudo-second order was found to be the best fitted model with R2>0.999. In order to determine the adsorption capacity, the sorption data were analyzed using the linear form of Langmuir, Freundlich and Temkin equations. The isotherm was best fitted by Langmuir isotherm model. The maximum adsorption capacity (qmax) obtained from Langmuir isotherm for two chitosan beads 1-butyl-3-methylimidazolium acetate A and 1-butyl-3-methylimidazolium B are 8.07mgg-1 and 0.24mgg-1 respectively.
Copyright © 2017 Elsevier B.V. All rights reserved.

Entities:  

Keywords:  1-butyl-3-methylimidazolium; Adsorption; Chitosan beads; Chitosan ionic liquid beads; Malachite green

Mesh：

Substances：

Year:  2017        PMID： 28965968     DOI： 10.1016/j.ijbiomac.2017.09.111

Source DB:  PubMed          Journal:  Int J Biol Macromol        ISSN： 0141-8130            Impact factor:   6.953


  7 in total

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Authors:  Mohamed E I Badawy; Mahmoud A M El-Nouby; Abd El-Salam M Marei
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  7 in total

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