2017
DOI: 10.3390/ma10111268
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Amidoxime Polymers for Uranium Adsorption: Influence of Comonomers and Temperature

Abstract: Recovering uranium from seawater has been the subject of many studies for decades, and has recently seen significant progress in materials development since the U.S. Department of Energy (DOE) has become involved. With DOE direction, the uranium uptake for amidoxime-based polymer adsorbents has more than tripled in capacity. In an effort to better understand how these new adsorbent materials behave under different environmental stimuli, several experimental and modeling based studies have been employed to inve… Show more

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Cited by 41 publications
(21 citation statements)
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“…Previous studies have examined the effects of differing temperature, 14,15 current speed, 16 and biofouling 17 on the amidoxime-based adsorbent's ability to uptake uranium. The focus Figure 1: Initial adsorbent concept with decoupling of mechanical and chemical requirements.…”
Section: Introductionmentioning
confidence: 99%
“…Previous studies have examined the effects of differing temperature, 14,15 current speed, 16 and biofouling 17 on the amidoxime-based adsorbent's ability to uptake uranium. The focus Figure 1: Initial adsorbent concept with decoupling of mechanical and chemical requirements.…”
Section: Introductionmentioning
confidence: 99%
“…For both AF1 and AI8 series adsorbents, cyclic amidoxime ligands are the primary sites for all trace-metal adsorption . The adsorption of aqueous uranium on these sites is highly endothermic and, as such, will increase alongside the ambient temperature. , Open-chain amidoxime ligands are, however, the predominant site for adsorption on the LCW adsorbent . Uranium adsorption on open-chain ligands is exothermic but this behavior can, nevertheless, be altered dramatically in the presence of certain comonomers .…”
Section: Resultsmentioning
confidence: 99%
“…This work is followed by substantial research focusing on amidoxime-based adsorbents (Zhuang et al 2018;Wu et al 2018;Zhao et al 2014b;Yuan et al 2016;Wang et al 2018b;Cheng et al 2019), and numerous reviews on amidoxime-based adsorbents for uranium harvest (Abney et al 2017). So far, the countable marine experiments have all involved amidoxime-based polymer adsorbents (Gill et al 2016;Ladshaw et al 2017).…”
Section: Adsorbents Bearing Amidoxime Ligandsmentioning
confidence: 99%
“…Compared with chemically initiated and thermally initiated polymerization, radiationinduced grafting polymerization (RIGP) exhibits good grafting ratio without additives. These advantages make RIGP widely adopted (Ladshaw et al 2017).…”
Section: Adsorbents Bearing Amidoxime Ligandsmentioning
confidence: 99%