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 > 北京大学 > 化学与分子工程学院

	Synthesis and characterization of a new ion-imprinted polymer for the selective separation of thorium(IV) ions at high acidity
	Liang, Hele ; Chen, Qingde ; Ma, Jingyuan ; Huang, Yuying ; Shen, Xinghai
刊名	RSC ADVANCES
	2017
关键词	SOLID-PHASE EXTRACTION GRAFTED TH(IV)-IMPRINTED POLYMERS AQUEOUS-SOLUTION BIOLOGICAL SAMPLES PRECONCENTRATION TH(IV) URANIUM(VI) REMOVAL SOLVENT
DOI	10.1039/c7ra05061e
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+.; Science Challenge Project [TZ2016004]; National Natural Science Foundation of China [U1507203, 91226112]; SCI(E); ARTICLE; 56; 35394-35402; 7
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/475906]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Liang, Hele,Chen, Qingde,Ma, Jingyuan,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.
APA	Liang, Hele,Chen, Qingde,Ma, Jingyuan,Huang, Yuying,&Shen, Xinghai.(2017).Synthesis and characterization of a new ion-imprinted polymer for the selective separation of thorium(IV) ions at high acidity.RSC ADVANCES.
MLA	Liang, Hele,et al."Synthesis and characterization of a new ion-imprinted polymer for the selective separation of thorium(IV) ions at high acidity".RSC ADVANCES (2017).