Issue 52, 2019
From the journal:

RSC Advances

High effectiveness of pure polydopamine in extraction of uranium and plutonium from groundwater and seawater†

Valery N. Bliznyuk, ORCID logo *ae   Kamila Kołacińska, ORCID logo b   Alexander A. Pud, ORCID logo c   Nikolay A. Ogurtsov, ORCID logo c   Yuriy V. Noskov, ORCID logo c   Brian A. Powell ORCID logo ade  and  Timothy A. DeVol*ae  

* Corresponding authors

a Department of Environmental Engineering and Earth Sciences, Clemson University, Clemson, SC 29634-0919, USA
E-mail: vblizny@clemson.edu, devol@clemson.edu

b Institute of Nuclear Chemistry and Technology in Warsaw, Poland

c V. P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, NAS of Ukraine, 50 Kharkivske Shose, Kyiv 02160, Ukraine

d Department of Chemistry, Clemson University, Clemson, SC 29634, USA

e Nuclear Environmental Engineering Sciences and Radioactive Waste Management (NEESRWM) Center, Clemson University, Clemson, SC 29634-0942, USA

Abstract

Sorption properties of polydopamine (PDA) for uranium and plutonium from an aqueous environment are reported at three different pH values (2, 4 and 6.5–7). In addition to deionized (DI) water, artificial groundwater (GW) and seawater (SW) were used with U uptake close to 100% in each case. PDA polymer has been identified as a material with extremely high sorption capacity Qmax ∼500 mg g−1 of the polymer at pH 6.5 and high selectivity for uranium. Similar high sorption properties are revealed for plutonium uptake. PDA-uranyl and PDA-plutonium interactions responsible for the observed adsorption processes have been addressed with a set of experimental techniques including FTIR spectroscopy, electron microscopy and cyclic voltammetry.

Graphical abstract: High effectiveness of pure polydopamine in extraction of uranium and plutonium from groundwater and seawater

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Article information

DOI
https://doi.org/10.1039/C9RA06392G
Article type
Paper
Submitted
15 Aug 2019
Accepted
16 Sep 2019
First published
24 Sep 2019
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2019,9, 30052-30063

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High effectiveness of pure polydopamine in extraction of uranium and plutonium from groundwater and seawater

V. N. Bliznyuk, K. Kołacińska, A. A. Pud, N. A. Ogurtsov, Y. V. Noskov, B. A. Powell and T. A. DeVol, RSC Adv., 2019, 9, 30052 DOI: 10.1039/C9RA06392G

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