Title : ( Chitosan/polyvinyl alcohol/hydroxyapatite nanocomposite membrane for the efficient adsorption of Congo red anionic dye )
Authors: Vahid Zeynali , Seyed Mahmoud Mousavi , Ehsan Saljoughi , Shirin Kiani , Mika Sillanpaa ,
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Abstract
This work focused on fabricating a novel chitosan/polyvinyl alcohol/ hydroxy- apatite (CPH) nanocomposite membrane and its application in removing the Congo red (CR) from aqueous solutions. After proper characterization of the chitosan/polyvinyl alcohol/hydroxyapatite adsorptive membrane, adsorption tests were carried out on the optimum nanocomposite membrane containing 1 wt% hydroxyapatite. The impact of temperature, contact time, initial dye concentration, adsorbent dosage, and pH was investigated. Results of isotherm and kinetic investigation revealed that Langmuir isotherm and pseudo-second order kinetics best fitted experimental results with R2 values of 0.995. A rela- tively high adsorption capacity of 491 mg/g, higher than that of activated car- bon, was achieved.
Keywords
, adsorption, chitosan, membranes, nanocomposites, separation techniques
@article{paperid:1095171,
author = {Zeynali, Vahid and Mousavi, Seyed Mahmoud and Saljoughi, Ehsan and Kiani, Shirin and Mika Sillanpaa},
title = {Chitosan/polyvinyl alcohol/hydroxyapatite nanocomposite membrane for the efficient adsorption of Congo red anionic dye},
journal = {Polymer Composites},
year = {2023},
volume = {44},
number = {7},
month = {July},
issn = {0272-8397},
pages = {4227--4242},
numpages = {15},
keywords = {adsorption; chitosan; membranes; nanocomposites; separation techniques},
}
%0 Journal Article
%T Chitosan/polyvinyl alcohol/hydroxyapatite nanocomposite membrane for the efficient adsorption of Congo red anionic dye
%A Zeynali, Vahid
%A Mousavi, Seyed Mahmoud
%A Saljoughi, Ehsan
%A Kiani, Shirin
%A Mika Sillanpaa
%J Polymer Composites
%@ 0272-8397
%D 2023
