Please use this identifier to cite or link to this item: http://archive.cmb.ac.lk:8080/xmlui/handle/70130/5508
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dc.contributor.authorFernando, M. Shanika-
dc.contributor.authorWimalasiri, A.K.D.V.K.-
dc.contributor.authorDziemidowicz, Karolina-
dc.contributor.authorWilliams, Gareth R.-
dc.contributor.authorKoswattage, K.R.-
dc.contributor.authorDissanayake, D.P.-
dc.contributor.authorde Silva, K.M. Nalin-
dc.contributor.authorde Silva, Rohini M.-
dc.date.accessioned2021-07-09T07:35:20Z-
dc.date.available2021-07-09T07:35:20Z-
dc.date.issued2021-
dc.identifier.citationFernando MS, Wimalasiri AKDVK, Dziemidowicz K, et al. Biopolymer-Based Nanohydroxyapatite Composites for the Removal of Fluoride, Lead, Cadmium, and Arsenic from Water. ACS Omega. 2021;6(12):8517-8530. Published 2021 Mar 18. doi:10.1021/acsomega.1c00316en_US
dc.identifier.uri10.1021/acsomega.1c00316-
dc.identifier.urihttp://archive.cmb.ac.lk:8080/xmlui/handle/70130/5508-
dc.description.abstractIn this study, hydroxyapatite (HAP) nanocomposites were prepared with chitosan (HAP-CTS), carboxymethyl cellulose (HAP-CMC), alginate (HAP-ALG), and gelatin (HAP-GEL) using a simple wet chemical in situ precipitation method. The synthesized materials were characterized using scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, Brunauer−Emmett−Teller surface area analysis, and thermogravimetric analysis. This revealed the successful synthesis of composites with varied morphologies. The adsorption abilities of the materials toward Pb(II), Cd(II), F−, and As(V) were explored, and HAP-CTS was found to have versatile adsorption properties for all of the ions, across a wide range of concentrations and pH values, and in the presence of common ions found in groundwater. Additionally, X-ray photoelectron spectroscopy and energy dispersive X-ray spectroscopy confirmed the affinity of HAP-CTS toward multi-ion mixture containing all four ions. HAP-CTS was hence engineered into a more user-friendly form, which can be used to form filters through its combination with cotton and granular activated carbon. A gravity filtration study indicates that the powder form of HAP-CTS is the best sorbent, with the highest breakthrough capacity of 3000, 3000, 2600, and 2000 mL/g for Pb(II), Cd(II), As(V), and F−, respectively. Hence, we propose that HAP-CTS could be a versatile sorbent material for use in water purification.en_US
dc.language.isoenen_US
dc.publisherAmerican Chemical Societyen_US
dc.subjectHydroxyapatiteen_US
dc.subjectAdsorptionen_US
dc.subjectFluorideen_US
dc.subjectArsenateen_US
dc.subjectCadmiumen_US
dc.subjectLeaden_US
dc.subjectBiopolymer nanocompositeen_US
dc.titleBiopolymer-Based Nanohydroxyapatite Composites for the Removal of Fluoride, Lead, Cadmium, and Arsenic from Wateren_US
dc.typeArticleen_US
Appears in Collections:Department of Chemistry



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