Hexavalent Chromium Removal and Reduction to Cr (III) by Polystyrene Tris(2-aminoethyl)amine

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dc.contributor.authorOdeh, Lina
dc.contributor.authorOdeh, Imad
dc.contributor.authorKhamis, Mustafa
dc.contributor.authorKhatib, Mahmoud
dc.contributor.authorQurie, Mohannad
dc.contributor.authorShakhsher, Ziad
dc.contributor.authorQutob, Mutaz
dc.date.accessioned2022-11-27T08:28:53Z
dc.date.available2022-11-27T08:28:53Z
dc.date.issued2015-01-01
dc.description.abstractA commercially available chelating polymer, polystyrene tris(2-aminoethyl)amine, was used for the removal of chromium from aqueous solution. The influence of pH, contact time, adsorbent dosage and initial Cr (VI) concentration on adsorption was studied. The optimum pH for the removal of Cr (VI) was at pH 5, while optimum contact time and adsorbent dosage were 120 minutes and 10 g/L, respectively. Total chromium and Cr (VI) concentrations were analyzed by ICP-MS and UVVisible. Adsorption isotherms using Langmuir and Freundlich isotherm models revealed that the data fitted Langmuir isotherm model better than Freundlich with a maximum adsorption capacity of 312.27 mg/g. FTIR spectroscopy, Scanning electron microscopy (SEM) and Energy Dispersive Spectrometry (EDS) analyses were performed on the adsorbent before and after binding Cr (VI). All analyses confirmed the complexation of Cr (VI) to the adsorbent. Desorption experiments using KCl solution indicated 89.3% release of chromium, rendering this method of high potential for adsorbent regeneration.
dc.description.sponsorshipAcknowledgements We wish to thank Professor Dr. Z. Abdeen for his valuable financial support which made this work possible. We also wish to thank the Aquatic and Aquaculture Research Laboratory at Al-Quds University for performing the ICP-MS analysis.
dc.identifier.issn2156-8278
dc.identifier.urihttps://dspace.alquds.edu/handle/20.500.12213/7074
dc.language.isoen
dc.publisherScientific Research Publishing
dc.titleHexavalent Chromium Removal and Reduction to Cr (III) by Polystyrene Tris(2-aminoethyl)amine
dc.typeArticle
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