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Synthesis and characterization of a new ion-imprinted polymer for the selective separation of thorium(IV) ions at high acidity
Liang, HL; Chen, QD; Ma, JY; Huang, YY; Shen, XH
2017
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume7Issue:56Pages:35394-35402
Subtype期刊论文
AbstractA new ion-imprinted polymer (IIP) was synthesized by thermal copolymerization of bis(2-methacryloxyethyl) phosphate as functional ligand and ethylene glycol dimethacrylate as cross-linker in the presence of Th4+ as a template ion. The molar ratio of the functional ligand to Th4+ was optimized to be 4 by P-31 NMR titration, elemental analysis, and EXAFS, which was verified by comparing the adsorption capacities and selectivities of IIPs with different composition. Thorium(IV) ions were leached out using 0.1 mol L-1 ethylenediaminetetraacetic acid disodium salt and the prepared IIP was characterized by infra-red spectroscopy, thermogravimetric analysis and Brunauer-Emmett-Teller surface area measurement. It was found that the IIP could extract Th4+ from high acidity solution. The maximum adsorption capacity was as high as 33.3 mg g(-1) in 1.0 mol L-1 HCl. Even in 6.0 mol L-1 HCl, its adsorption capacity was still considerable. Moreover, the IIP exhibited good selectivity towards Th4+, especially in the presence of competing ions such as La3+, Eu3+, Yb3+, UO22+, and Fe3+.
KeywordSolid-phase Extraction Grafted Th(Iv)-imprinted Polymers Aqueous-solution Biological Samples Preconcentration Th(Iv) Uranium(Vi) Removal Solvent
DOI10.1039/c7ra05061e
WOS KeywordSOLID-PHASE EXTRACTION ; GRAFTED TH(IV)-IMPRINTED POLYMERS ; AQUEOUS-SOLUTION ; BIOLOGICAL SAMPLES ; PRECONCENTRATION ; TH(IV) ; URANIUM(VI) ; REMOVAL ; SOLVENT
Indexed BySCI
Language英语
WOS IDWOS:000405811400054
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Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28847
Collection中科院上海应用物理研究所2011-2018年
Recommended Citation
GB/T 7714
Liang, HL,Chen, QD,Ma, JY,et al. Synthesis and characterization of a new ion-imprinted polymer for the selective separation of thorium(IV) ions at high acidity[J]. RSC ADVANCES,2017,7(56):35394-35402.
APA Liang, HL,Chen, QD,Ma, JY,Huang, YY,&Shen, XH.(2017).Synthesis and characterization of a new ion-imprinted polymer for the selective separation of thorium(IV) ions at high acidity.RSC ADVANCES,7(56),35394-35402.
MLA Liang, HL,et al."Synthesis and characterization of a new ion-imprinted polymer for the selective separation of thorium(IV) ions at high acidity".RSC ADVANCES 7.56(2017):35394-35402.
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