Staff View: A novel oyster shell biocomposite for the efficient adsorptive removal of cadmium and lead from aqueous solution: Synthesis, process optimization, modelling and mechanism studies

A novel oyster shell biocomposite for the efficient adsorptive removal of cadmium and lead from aqueous solution: Synthesis, process optimization, modelling and mechanism studies

This study highlights the effectiveness of oyster shell biocomposite for the biosorption of Cd(II) and Pb(II) ions from an aqueous solution. The aim of this work was to modify a novel biocomposite derived from oyster shell for the adsorption of Cd(II) and Pb(II) ions from aqueous solution. The studi...

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Main Authors:	Adeleke A.O., Royahu C.O., Afolabi A.A., Alshammari M.B., Imteaz M.
Other Authors:	57194067040
Format:	Article
Published:	Public Library of Science 2025
Subjects:	Adsorption Animals Cadmium Ions Lead Ostreidae Spectroscopy, Fourier Transform Infrared adsorbent cadmium calcium carbonate heavy metal lead metal ion nanocomposite ion adsorption adsorption kinetics animal shell aqueous solution Article atomic absorption spectrometry bioremediation biosorption central composite design crystal structure diffusion energy dispersive X ray spectroscopy enthalpy Fourier transform infrared spectroscopy irradiation isotherm kinetics nonhuman oyster particle size pH Raman spectrometry rate constant response surface method scanning electron microscopy surface area synthesis temperature thermodynamics transmission electron microscopy wastewater X ray analysis X ray diffraction animal
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spelling	my.uniten.dspace-368062025-03-03T15:44:49Z A novel oyster shell biocomposite for the efficient adsorptive removal of cadmium and lead from aqueous solution: Synthesis, process optimization, modelling and mechanism studies Adeleke A.O. Royahu C.O. Afolabi A.A. Alshammari M.B. Imteaz M. 57194067040 57903899400 58902837700 57653516000 6506146119 Adsorption Animals Cadmium Ions Lead Ostreidae Spectroscopy, Fourier Transform Infrared adsorbent cadmium calcium carbonate heavy metal lead metal ion nanocomposite cadmium ion lead adsorption adsorption kinetics animal shell aqueous solution Article atomic absorption spectrometry bioremediation biosorption central composite design crystal structure diffusion energy dispersive X ray spectroscopy enthalpy Fourier transform infrared spectroscopy irradiation isotherm kinetics nonhuman oyster particle size pH Raman spectrometry rate constant response surface method scanning electron microscopy surface area synthesis temperature thermodynamics transmission electron microscopy wastewater X ray analysis X ray diffraction adsorption animal This study highlights the effectiveness of oyster shell biocomposite for the biosorption of Cd(II) and Pb(II) ions from an aqueous solution. The aim of this work was to modify a novel biocomposite derived from oyster shell for the adsorption of Cd(II) and Pb(II) ions from aqueous solution. The studied revealed the specific surface BET surface area was 9.1476 m2/g. The elemental dispersive x-ray analysis (EDS) indicated that C, O, Ag, Ca were the predominant elements on the surface of the biocomposite after which metals ions of Cd and Pb were noticed after adsorption. The Fourier transform Irradiation (FT-IR) revealed the presence of carboxyl and hydroxyl groups on the surface. The effect of process variables on the adsorption capacity of the modified biocomposite was examined using the central composite design (CCD) of the response surface methodology (RSM). The process variables which include pH, adsorbent dose, the initial concentration and temperature were the most effective parameters influencing the uptake capacity. The optimal process conditions of these parameters were found to be pH, 5.57, adsorbent dose, 2.53 g/L, initial concentration, 46.76 mg/L and temperature 28.48�C for the biosorption of Cd(II) and Pb(II) ions from aqueous solution at a desirability coefficient of 1. The analysis of variance (ANOVA) revealed a high coefficient of determination (R2 > 0.91) and low probability coefficients for the responses (P < 0.05) which indicated the validity and aptness of the model for the biosorption of the metal ions. Experimental isotherm data fitted better to the Langmuir model and the kinetic data fitted better to the pseudo-second-order model. Maximun Cd(II) and Pb(II) adsorption capacities of the oyster shell biocomposite were 97.54 and 78.99 mg/g respectively and was obtained at pH 5.56 and 28.48�C. This investigation has provided the possibility of the utilization of alternative biocomposite as a sustainable approach for the biosorption of heavy metal ions from the wastewater stream. ? 2024 Adeleke et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Final 2025-03-03T07:44:49Z 2025-03-03T07:44:49Z 2024 Article 10.1371/journal.pone.0294286 2-s2.0-85185762771 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85185762771&doi=10.1371%2fjournal.pone.0294286&partnerID=40&md5=db79bb8e56f5326d43c367dc009fb223 https://irepository.uniten.edu.my/handle/123456789/36806 19 2-Feb e0294286 All Open Access; Gold Open Access Public Library of Science Scopus
institution	Universiti Tenaga Nasional
building	UNITEN Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tenaga Nasional
content_source	UNITEN Institutional Repository
url_provider	http://dspace.uniten.edu.my/
topic	Adsorption Animals Cadmium Ions Lead Ostreidae Spectroscopy, Fourier Transform Infrared adsorbent cadmium calcium carbonate heavy metal lead metal ion nanocomposite cadmium ion lead adsorption adsorption kinetics animal shell aqueous solution Article atomic absorption spectrometry bioremediation biosorption central composite design crystal structure diffusion energy dispersive X ray spectroscopy enthalpy Fourier transform infrared spectroscopy irradiation isotherm kinetics nonhuman oyster particle size pH Raman spectrometry rate constant response surface method scanning electron microscopy surface area synthesis temperature thermodynamics transmission electron microscopy wastewater X ray analysis X ray diffraction adsorption animal
spellingShingle	Adsorption Animals Cadmium Ions Lead Ostreidae Spectroscopy, Fourier Transform Infrared adsorbent cadmium calcium carbonate heavy metal lead metal ion nanocomposite cadmium ion lead adsorption adsorption kinetics animal shell aqueous solution Article atomic absorption spectrometry bioremediation biosorption central composite design crystal structure diffusion energy dispersive X ray spectroscopy enthalpy Fourier transform infrared spectroscopy irradiation isotherm kinetics nonhuman oyster particle size pH Raman spectrometry rate constant response surface method scanning electron microscopy surface area synthesis temperature thermodynamics transmission electron microscopy wastewater X ray analysis X ray diffraction adsorption animal Adeleke A.O. Royahu C.O. Afolabi A.A. Alshammari M.B. Imteaz M. A novel oyster shell biocomposite for the efficient adsorptive removal of cadmium and lead from aqueous solution: Synthesis, process optimization, modelling and mechanism studies
description	This study highlights the effectiveness of oyster shell biocomposite for the biosorption of Cd(II) and Pb(II) ions from an aqueous solution. The aim of this work was to modify a novel biocomposite derived from oyster shell for the adsorption of Cd(II) and Pb(II) ions from aqueous solution. The studied revealed the specific surface BET surface area was 9.1476 m2/g. The elemental dispersive x-ray analysis (EDS) indicated that C, O, Ag, Ca were the predominant elements on the surface of the biocomposite after which metals ions of Cd and Pb were noticed after adsorption. The Fourier transform Irradiation (FT-IR) revealed the presence of carboxyl and hydroxyl groups on the surface. The effect of process variables on the adsorption capacity of the modified biocomposite was examined using the central composite design (CCD) of the response surface methodology (RSM). The process variables which include pH, adsorbent dose, the initial concentration and temperature were the most effective parameters influencing the uptake capacity. The optimal process conditions of these parameters were found to be pH, 5.57, adsorbent dose, 2.53 g/L, initial concentration, 46.76 mg/L and temperature 28.48�C for the biosorption of Cd(II) and Pb(II) ions from aqueous solution at a desirability coefficient of 1. The analysis of variance (ANOVA) revealed a high coefficient of determination (R2 > 0.91) and low probability coefficients for the responses (P < 0.05) which indicated the validity and aptness of the model for the biosorption of the metal ions. Experimental isotherm data fitted better to the Langmuir model and the kinetic data fitted better to the pseudo-second-order model. Maximun Cd(II) and Pb(II) adsorption capacities of the oyster shell biocomposite were 97.54 and 78.99 mg/g respectively and was obtained at pH 5.56 and 28.48�C. This investigation has provided the possibility of the utilization of alternative biocomposite as a sustainable approach for the biosorption of heavy metal ions from the wastewater stream. ? 2024 Adeleke et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
author2	57194067040
author_facet	57194067040 Adeleke A.O. Royahu C.O. Afolabi A.A. Alshammari M.B. Imteaz M.
format	Article
author	Adeleke A.O. Royahu C.O. Afolabi A.A. Alshammari M.B. Imteaz M.
author_sort	Adeleke A.O.
title	A novel oyster shell biocomposite for the efficient adsorptive removal of cadmium and lead from aqueous solution: Synthesis, process optimization, modelling and mechanism studies
title_short	A novel oyster shell biocomposite for the efficient adsorptive removal of cadmium and lead from aqueous solution: Synthesis, process optimization, modelling and mechanism studies
title_full	A novel oyster shell biocomposite for the efficient adsorptive removal of cadmium and lead from aqueous solution: Synthesis, process optimization, modelling and mechanism studies
title_fullStr	A novel oyster shell biocomposite for the efficient adsorptive removal of cadmium and lead from aqueous solution: Synthesis, process optimization, modelling and mechanism studies
title_full_unstemmed	A novel oyster shell biocomposite for the efficient adsorptive removal of cadmium and lead from aqueous solution: Synthesis, process optimization, modelling and mechanism studies
title_sort	novel oyster shell biocomposite for the efficient adsorptive removal of cadmium and lead from aqueous solution: synthesis, process optimization, modelling and mechanism studies
publisher	Public Library of Science
publishDate	2025
_version_	1825816284883845120
score	13.244413

A novel oyster shell biocomposite for the efficient adsorptive removal of cadmium and lead from aqueous solution: Synthesis, process optimization, modelling and mechanism studies

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