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Title: Novel poly(imide dioxime) sorbents: Development and testing for enhanced extraction of uranium from natural seawater

Journal Article · · Chemical Engineering Journal
 [1];  [2];  [1];  [1];  [1];  [3];  [3];  [4]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry
  3. Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Marine Sciences Lab.
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry
+ Show Author Affiliations

We synthesized a new series of amidoxime-based polymer adsorbents at the Oak Ridge National Laboratory (ORNL) by electron beam induced grafting of acrylonitrile and itaconic acid onto polyethylene fiber. We also demonstrate hydroxylamine derivatives of poly(acrylonitrile) (PAN) moiety to possess two kinds of functional groups: open-chain amidoxime and cyclic imide dioxime. The open-chain amidoxime is shown to convert to imide dioxime on heat treatment in the presence of an aprotic solvent, like dimethylsulfoxide (DMSO). Furthermore, the formation of amidoxime and imide dioxime was confirmed by 13C CP-MAS spectra. The adsorbents were evaluated for uranium adsorption efficiency at ORNL with simulated seawater spiked with 8 ppm uranium and 5 gallon seawater in a batch reactor, and in flow-through columns with natural seawater at the Marine Science Laboratory (MSL) of Pacific Northwest National Laboratory (PNNL) at Sequim Bay, WA. The DMSO-heat-treated sorbents adsorbed uranium as high as 4.48 g-U/kg-ads. from seawater. Experimental evidence is presented that the poly(imide dioxime) is primarily responsible for enhanced uranium adsorption capacity from natural seawater. The conjugated system in the imide dioxime ligand possesses increased electron donation ability, which is believed to significantly enhance the uranyl coordination in seawater.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Nuclear Energy (NE)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1362207
Alternate ID(s):
OSTI ID: 1341105
Journal Information:
Chemical Engineering Journal, Vol. 298, Issue C; ISSN 1385-8947
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 109 works
Citation information provided by
Web of Science

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Cited By (25)

A Bio‐inspired Nano‐pocket Spatial Structure for Targeting Uranyl Capture journal January 2020
Bayberry tannin immobilized bovine serum albumin nanospheres: characterization, irradiation stability and selective removal of uranyl ions from radioactive wastewater journal January 2018
Highly fluorescent conjugated microporous polymers for concurrent adsorption and detection of uranium journal January 2019
3D hierarchical porous amidoxime fibers speed up uranium extraction from seawater journal January 2019
Ultrafast and Highly Selective Uranium Extraction from Seawater by Hydrogel-like Spidroin-based Protein Fiber journal July 2019
Bio-inspired nano-traps for uranium extraction from seawater and recovery from nuclear waste journal April 2018
Polypropylene nonwoven fabric modified with oxime and guanidine for antibiofouling and highly selective uranium recovery from seawater journal May 2019
Engineering robust metal–phenolic network membranes for uranium extraction from seawater journal January 2019
Study of adsorption performance and adsorption mechanism for U(VI) ion on modified polyacrylonitrile fibers journal November 2019
Rational Design of Porous Nanofiber Adsorbent by Blow-Spinning with Ultrahigh Uranium Recovery Capacity from Seawater journal November 2018
Origin of the unusually strong and selective binding of vanadium by polyamidoximes in seawater journal November 2017
Interfacial growth of a metal–organic framework (UiO-66) on functionalized graphene oxide (GO) as a suitable seawater adsorbent for extraction of uranium( vi ) journal January 2017
Symbiotic Aerogel Fibers Made via In-Situ Gelation of Aramid Nanofibers with Polyamidoxime for Uranium Extraction journal May 2019
A highly efficient uranium grabber derived from acrylic fiber for extracting uranium from seawater journal January 2020
Covalent Organic Frameworks as a Decorating Platform for Utilization and Affinity Enhancement of Chelating Sites for Radionuclide Sequestration journal March 2018
Amidoximated poly(vinyl imidazole)-functionalized molybdenum disulfide sheets for efficient sorption of a uranyl tricarbonate complex from aqueous solutions journal January 2017
Significantly Enhanced Uranium Extraction from Seawater with Mass Produced Fully Amidoximated Nanofiber Adsorbent journal October 2018
Ultrafast and Highly Selective Uranium Extraction from Seawater by Hydrogel‐like Spidroin‐based Protein Fiber journal July 2019
Role of biomolecules in selective extraction of U(VI) using an aqueous biphasic system journal March 2019
Efficient removal of uranium( vi ) from simulated seawater using amidoximated polyacrylonitrile/FeOOH composites journal January 2017
Adsorption capacity of kelp-like electrospun nanofibers immobilized with bayberry tannin for uranium( vi ) extraction from seawater journal January 2019
Amidoxime Polymers for Uranium Adsorption: Influence of Comonomers and Temperature journal November 2017
Siderophore-inspired chelator hijacks uranium from aqueous medium journal February 2019
A Universally Applicable Strategy for Construction of Anti‐Biofouling Adsorbents for Enhanced Uranium Recovery from Seawater journal March 2019
A Bio‐inspired Nano‐pocket Spatial Structure for Targeting Uranyl Capture journal March 2020

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
polymer
grafting
amidoxime
imide dioxime
uranium adsorption
seawater