Adsorption Efficiency of Chemically Modified Chitosan towards Copper and Cobalt Ions from Industrial Waste Water - Egyptian Knowledge Bank

1156

Adsorption Efficiency of Chemically Modified Chitosan towards Copper and Cobalt Ions from Industrial Waste Water

Article

Last updated: 01 Jan 2025

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Abstract

IN THIS study, chitosan was produced and characterized using NMR, IR, DSC and TGA analyses. Its molecular weight was determined using GPC analysis. The produced chitosan was chemically modified by reaction with glycine and chloroacetic acid. Its adsorption capacity for Cu(II) and Co(II) ions from industrial wastewater was determined and compared to the virgin chitosan. The chemical structures of the prepared biosorbents were confirmed by FTIR and 1H–NMR. The adsorption efficiencies of the two biosorbents in neutral (pH=7) and alkaline medium (pH=9) at 25oC were determined using atomic absorption spectroscopy (AAS) and thermo-gravimetric analysis (TGA). The two biosorbents show lower adsorption efficiency towards copper and cobalt ions compared to the virgin biosorbent (pure chitosan). Furthermore, the adsorption capacity of glycine–chitosan was higher than the chloroacetic acid–chitosan biosorbents, which is attributed to the chelating effect of the amino groups than the chloro–substituted polymer.

DOI

10.21608/ejchem.2012.1156

Keywords

Chitosan, industrial waste water, Cobalt and Copper ions

Volume

Article Issue

Related Issue

281

Issue Date

2012-06-01

Receive Date

2012-07-31

Publish Date

2012-06-30

Page Start

291

Page End

305

Print ISSN

0449-2285

Online ISSN

2357-0245

Article File

EJCHEM_Volume 55_Issue 3_Pages 291-305.pdf

PDF . 600.8kB

Link

https://ejchem.journals.ekb.eg/article_1156.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=1156

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Type Code

292

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

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