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Synthesis and Characterization of Biopolymeric Chitosan Derived from Land Snail Shells and Its Potential for Pb(2+) Removal from Aqueous Solution

Pb(2+) is considered to be a very toxic pollutant in the aquatic environmental media. Biopolymeric chitosan synthesized from snail shell has been studied for its potential to remove heavy metals from aqueous solution. The experiments were conducted in the range of 1–50 mg/L initial Pb(2+) concentrat...

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Autores principales: Edokpayi, Joshua N., Odiyo, John O., Popoola, Elizabeth O., Alayande, Oluwagbemiga S., Msagati, Titus A. M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5458811/
https://www.ncbi.nlm.nih.gov/pubmed/28793734
http://dx.doi.org/10.3390/ma8125482
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author Edokpayi, Joshua N.
Odiyo, John O.
Popoola, Elizabeth O.
Alayande, Oluwagbemiga S.
Msagati, Titus A. M.
author_facet Edokpayi, Joshua N.
Odiyo, John O.
Popoola, Elizabeth O.
Alayande, Oluwagbemiga S.
Msagati, Titus A. M.
author_sort Edokpayi, Joshua N.
collection PubMed
description Pb(2+) is considered to be a very toxic pollutant in the aquatic environmental media. Biopolymeric chitosan synthesized from snail shell has been studied for its potential to remove heavy metals from aqueous solution. The experiments were conducted in the range of 1–50 mg/L initial Pb(2+) concentration at 298 K. The effects of pH, adsorbent dosage and contact time on the adsorptive property of the adsorbent were investigated and optimized. The derived chitosan was characterized using Fourier transform infrared spectrometer (FT-IR) and X-ray florescence (XRF). The experimental data obtained were analysed using the Langmuir and Freundlich adsorption isotherm models. The Langmuir model and pseudo second order kinetic model suitably described the adsorption and kinetics of the process with regression coefficients of 0.99 and 1.00, respectively. Sodium hydroxide was a better desorbing agent than hydrochloric acid and de-ionized water. From the results obtained, it is concluded that synthesized biopolymers from land snail shells has the potential for the removal of Pb(2+) from aqueous solutions.
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spelling pubmed-54588112017-07-28 Synthesis and Characterization of Biopolymeric Chitosan Derived from Land Snail Shells and Its Potential for Pb(2+) Removal from Aqueous Solution Edokpayi, Joshua N. Odiyo, John O. Popoola, Elizabeth O. Alayande, Oluwagbemiga S. Msagati, Titus A. M. Materials (Basel) Article Pb(2+) is considered to be a very toxic pollutant in the aquatic environmental media. Biopolymeric chitosan synthesized from snail shell has been studied for its potential to remove heavy metals from aqueous solution. The experiments were conducted in the range of 1–50 mg/L initial Pb(2+) concentration at 298 K. The effects of pH, adsorbent dosage and contact time on the adsorptive property of the adsorbent were investigated and optimized. The derived chitosan was characterized using Fourier transform infrared spectrometer (FT-IR) and X-ray florescence (XRF). The experimental data obtained were analysed using the Langmuir and Freundlich adsorption isotherm models. The Langmuir model and pseudo second order kinetic model suitably described the adsorption and kinetics of the process with regression coefficients of 0.99 and 1.00, respectively. Sodium hydroxide was a better desorbing agent than hydrochloric acid and de-ionized water. From the results obtained, it is concluded that synthesized biopolymers from land snail shells has the potential for the removal of Pb(2+) from aqueous solutions. MDPI 2015-12-10 /pmc/articles/PMC5458811/ /pubmed/28793734 http://dx.doi.org/10.3390/ma8125482 Text en © 2015 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Edokpayi, Joshua N.
Odiyo, John O.
Popoola, Elizabeth O.
Alayande, Oluwagbemiga S.
Msagati, Titus A. M.
Synthesis and Characterization of Biopolymeric Chitosan Derived from Land Snail Shells and Its Potential for Pb(2+) Removal from Aqueous Solution
title Synthesis and Characterization of Biopolymeric Chitosan Derived from Land Snail Shells and Its Potential for Pb(2+) Removal from Aqueous Solution
title_full Synthesis and Characterization of Biopolymeric Chitosan Derived from Land Snail Shells and Its Potential for Pb(2+) Removal from Aqueous Solution
title_fullStr Synthesis and Characterization of Biopolymeric Chitosan Derived from Land Snail Shells and Its Potential for Pb(2+) Removal from Aqueous Solution
title_full_unstemmed Synthesis and Characterization of Biopolymeric Chitosan Derived from Land Snail Shells and Its Potential for Pb(2+) Removal from Aqueous Solution
title_short Synthesis and Characterization of Biopolymeric Chitosan Derived from Land Snail Shells and Its Potential for Pb(2+) Removal from Aqueous Solution
title_sort synthesis and characterization of biopolymeric chitosan derived from land snail shells and its potential for pb(2+) removal from aqueous solution
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5458811/
https://www.ncbi.nlm.nih.gov/pubmed/28793734
http://dx.doi.org/10.3390/ma8125482
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