Synthesis and characterization of a new ion-imprinted polymer for the selective separation of thorium(IV) ions at high acidity

doi:10.1039/c7ra05061e

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	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
刊名	RSC ADVANCES
	2017
卷号	7 期号:56 页码:35394-35402
关键词	Solid-phase Extraction Grafted Th(Iv)-imprinted Polymers Aqueous-solution Biological Samples Preconcentration Th(Iv) Uranium(Vi) Removal Solvent
ISSN号	2046-2069
DOI	10.1039/c7ra05061e
文献子类	期刊论文
英文摘要	A 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+.
WOS关键词	SOLID-PHASE EXTRACTION ; GRAFTED TH(IV)-IMPRINTED POLYMERS ; AQUEOUS-SOLUTION ; BIOLOGICAL SAMPLES ; PRECONCENTRATION ; TH(IV) ; URANIUM(VI) ; REMOVAL ; SOLVENT
语种	英语
WOS记录号	WOS:000405811400054
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/28847]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 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.