Green synthesis of chitosan-based iron@silver nanocomposite as adsorbent for wastewater treatment

Chitosan–iron@silver (CS–Fe@Ag) nanocomposite was synthesized by a simple green synthetic method. The bimetallic Fecore@Agshell nanoparticles (NPs) were synthesized through a simple reduction of equimolar amounts of their salt mixture with Alchornea laxiflora leaf extract at 100 °C. The resulting bi...

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Main Authors: A.A. Olajire, L.A. Bamigbade
Format: Article
Language:English
Published: Elsevier 2021-12-01
Series:Water Resources and Industry
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2212371721000214
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spelling doaj-a1111185ec2244efa0dac1d8d2bcf8fc2021-09-07T04:13:18ZengElsevierWater Resources and Industry2212-37172021-12-0126100158Green synthesis of chitosan-based iron@silver nanocomposite as adsorbent for wastewater treatmentA.A. Olajire0L.A. Bamigbade1Corresponding author.; Industrial/Environmental Chemistry Unit, Department of Pure and Applied Chemistry, Ladoke Akintola University of Technology, Ogbomoso, NigeriaIndustrial/Environmental Chemistry Unit, Department of Pure and Applied Chemistry, Ladoke Akintola University of Technology, Ogbomoso, NigeriaChitosan–iron@silver (CS–Fe@Ag) nanocomposite was synthesized by a simple green synthetic method. The bimetallic Fecore@Agshell nanoparticles (NPs) were synthesized through a simple reduction of equimolar amounts of their salt mixture with Alchornea laxiflora leaf extract at 100 °C. The resulting bimetallic nanoparticles and nanocomposite were characterized with Fourier transform infrared (FTIR) and UV–visible spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD) techniques. The evidence for the formation of Fecore@Agshell NPs within the chitosan polymer matrix was confirmed by UV–visible, XRD and FTIR spectra where the bonding of the bimetallic shell (Agshell) with carboxyl group to form Ag–O was confirmed. The effect of dosage, pH and agitation time on turbidity reduction of wastewater was studied to determine optimum conditions for the determination of water quality parameters. The CS-Fe@Ag nanocomposite gave higher maximum removals of BOD (48.7%), COD (15.5%) and TDS (54.9%) than pure CS with BOD (25.5%), COD (3.6%) and TDS (38.9%) at optimum conditions.http://www.sciencedirect.com/science/article/pii/S2212371721000214ChitosanIron@silver nanoparticlesChitosan-iron@silver nanocompositeWastewater treatment
collection DOAJ
language English
format Article
sources DOAJ
author A.A. Olajire
L.A. Bamigbade
spellingShingle A.A. Olajire
L.A. Bamigbade
Green synthesis of chitosan-based iron@silver nanocomposite as adsorbent for wastewater treatment
Water Resources and Industry
Chitosan
Iron@silver nanoparticles
Chitosan-iron@silver nanocomposite
Wastewater treatment
author_facet A.A. Olajire
L.A. Bamigbade
author_sort A.A. Olajire
title Green synthesis of chitosan-based iron@silver nanocomposite as adsorbent for wastewater treatment
title_short Green synthesis of chitosan-based iron@silver nanocomposite as adsorbent for wastewater treatment
title_full Green synthesis of chitosan-based iron@silver nanocomposite as adsorbent for wastewater treatment
title_fullStr Green synthesis of chitosan-based iron@silver nanocomposite as adsorbent for wastewater treatment
title_full_unstemmed Green synthesis of chitosan-based iron@silver nanocomposite as adsorbent for wastewater treatment
title_sort green synthesis of chitosan-based iron@silver nanocomposite as adsorbent for wastewater treatment
publisher Elsevier
series Water Resources and Industry
issn 2212-3717
publishDate 2021-12-01
description Chitosan–iron@silver (CS–Fe@Ag) nanocomposite was synthesized by a simple green synthetic method. The bimetallic Fecore@Agshell nanoparticles (NPs) were synthesized through a simple reduction of equimolar amounts of their salt mixture with Alchornea laxiflora leaf extract at 100 °C. The resulting bimetallic nanoparticles and nanocomposite were characterized with Fourier transform infrared (FTIR) and UV–visible spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD) techniques. The evidence for the formation of Fecore@Agshell NPs within the chitosan polymer matrix was confirmed by UV–visible, XRD and FTIR spectra where the bonding of the bimetallic shell (Agshell) with carboxyl group to form Ag–O was confirmed. The effect of dosage, pH and agitation time on turbidity reduction of wastewater was studied to determine optimum conditions for the determination of water quality parameters. The CS-Fe@Ag nanocomposite gave higher maximum removals of BOD (48.7%), COD (15.5%) and TDS (54.9%) than pure CS with BOD (25.5%), COD (3.6%) and TDS (38.9%) at optimum conditions.
topic Chitosan
Iron@silver nanoparticles
Chitosan-iron@silver nanocomposite
Wastewater treatment
url http://www.sciencedirect.com/science/article/pii/S2212371721000214
work_keys_str_mv AT aaolajire greensynthesisofchitosanbasedironsilvernanocompositeasadsorbentforwastewatertreatment
AT labamigbade greensynthesisofchitosanbasedironsilvernanocompositeasadsorbentforwastewatertreatment
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