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Facile preparation of agaraldehyde chitosan‐based composite beads as effectual adsorbent especially towards amido black
Author(s) -
Kholiya Faisal,
Singh Ankit,
Gosai Amit,
Meena Ramavatar
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.50716
Subject(s) - adsorption , crystal violet , freundlich equation , aqueous solution , fourier transform infrared spectroscopy , methylene blue , methyl orange , langmuir adsorption model , langmuir , nuclear chemistry , chitosan , scanning electron microscope , x ray photoelectron spectroscopy , kinetics , chemistry , materials science , chemical engineering , organic chemistry , composite material , medicine , physics , pathology , photocatalysis , quantum mechanics , engineering , catalysis
Agaraldehyde and chitosan (CHI) functional beads as dye adsorbent were prepared under aqueous medium under ambient temperature and used for removing seven dyes from aqueous solutions. The resulting porous CHI‐A ald (R‐A ald ‐CHI) bio‐beads were characterized by X‐ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and scanning electron microscope. The dye removal efficiency was studied using seven dyes (amido black [AB], bromophenol blue, crystal violet, bismarck brown, cotton blue, methyl orange, methylene blue), but detail study was done on AB. AB adsorption was followed the Langmuir‐isotherm and pseudo‐second order kinetics. The effects of adsorption parameters were investigated, and maximum AB 1506 mg/g was adsorbed under the optimum conditions. The linear and nonlinear forms of Langmuir and Freundlich isotherms and two kinetic models pseudo‐first‐order and pseudo‐second‐order were studied. The results show that adsorption follow both isotherm model while for kinetics of adsorption follow pseudo‐second‐order. The results of this work showed that R‐A ald ‐CHI was encouraging adsorbent to remove dyes from wastewater, especially AB.