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Title: Amidoxime-functionalized materials and their use in extracting metal ions from liquid solutions

Abstract

A method of producing a functionalized material that extracts metal ions from solution, the method comprising: (i) providing a precursor material having nitrile groups appended to its surface; and (ii) reacting said nitrile groups with hydroxylamine or a derivative thereof in the presence of a polar aprotic solvent at a temperature of 60-80° C. for at least 1 hour, to convert at least a portion of said nitrile groups to amidoxime and imide dioxime groups, followed by reaction with a base capable of hydrolyzing any remaining nitrile groups to carboxylic acid groups; wherein said functionalized material has a higher uranium absorption capacity than a functionalized material produced under same conditions except that the nitrile groups are reacted with hydroxylamine in only a protic solvent. The invention is also directed to functionalized materials produced by the above-described method, and methods for using the functionalized material for extracting metal ions from metal-containing solutions.

Inventors:
; ; ;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1734993
Patent Number(s):
10702852
Application Number:
15/625,276
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
D - TEXTILES D06 - TREATMENT OF TEXTILES OR THE LIKE D06M - TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 06/16/2017
Country of Publication:
United States
Language:
English

Citation Formats

Janke, Christopher J., Mayes, Richard T., Das, Sadananda, and Dai, Sheng. Amidoxime-functionalized materials and their use in extracting metal ions from liquid solutions. United States: N. p., 2020. Web.
Janke, Christopher J., Mayes, Richard T., Das, Sadananda, & Dai, Sheng. Amidoxime-functionalized materials and their use in extracting metal ions from liquid solutions. United States.
Janke, Christopher J., Mayes, Richard T., Das, Sadananda, and Dai, Sheng. Tue . "Amidoxime-functionalized materials and their use in extracting metal ions from liquid solutions". United States. https://www.osti.gov/servlets/purl/1734993.
@article{osti_1734993,
title = {Amidoxime-functionalized materials and their use in extracting metal ions from liquid solutions},
author = {Janke, Christopher J. and Mayes, Richard T. and Das, Sadananda and Dai, Sheng},
abstractNote = {A method of producing a functionalized material that extracts metal ions from solution, the method comprising: (i) providing a precursor material having nitrile groups appended to its surface; and (ii) reacting said nitrile groups with hydroxylamine or a derivative thereof in the presence of a polar aprotic solvent at a temperature of 60-80° C. for at least 1 hour, to convert at least a portion of said nitrile groups to amidoxime and imide dioxime groups, followed by reaction with a base capable of hydrolyzing any remaining nitrile groups to carboxylic acid groups; wherein said functionalized material has a higher uranium absorption capacity than a functionalized material produced under same conditions except that the nitrile groups are reacted with hydroxylamine in only a protic solvent. The invention is also directed to functionalized materials produced by the above-described method, and methods for using the functionalized material for extracting metal ions from metal-containing solutions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}

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