Optimisation of the Hydrophilic Conditioning of Amidoximated Polymers and Evaluation of their Uranium Adsorption Capability

Abstract

Polyacrylonitrile (Poly-AN) was modified using two-step conditioning: 1) amidoxime chelation and 2) conversion to carboxylic groups using sodium hydroxide (NaOH).

Design of experiments (DOE) used to predict trends in uranium adsorption capability with changing factors of second step conditioning.

Conditioning temperatures above 50 °C and NaOH concentrations >0.5 M are optimum to achieve highest possible uranium adsorption capacity.

Despite an abundance of other cations, no statistical difference was observed between uptake of uranium from real seawater compared to laboratory prepared simulants and deionised water using bi functionalised Poly-AN.

Metadata

Item Type:	Article
Authors/Creators:	Wadsley, G Wilbraham, RJ Fells, A https://orcid.org/0000-0003-4392-3035 Foster, S Bulman, C Hanson, BC https://orcid.org/0000-0002-1720-1656 Baker, A https://orcid.org/0000-0003-0857-6533
Copyright, Publisher and Additional Information:	Reproduced in accordance with the publisher's self-archiving policy.
Dates:	Published: 2 May 2022 Published (online): 2 May 2022 Accepted: 29 October 2021
Institution:	The University of Leeds
Academic Units:	The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) The University of Leeds > Faculty of Arts, Humanities and Cultures (Leeds) > School of Design (Leeds)
Depositing User:	Symplectic Publications
Date Deposited:	15 Sep 2022 11:14
Last Modified:	09 Jan 2023 10:42
Status:	Published
Publisher:	Nuclear Institute
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:190950

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Optimisation of the Hydrophilic Conditioning of Amidoximated Polymers and Evaluation of their Uranium Adsorption Capability

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