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SPEC Process II. Adsorption of strontium and some typical co-existent elements contained in high level liquid waste onto a macroporous silica-based crown ether impregnated functional composite
Zhang, AY; Xiao, CL; Chai ZF(柴之芳); Chai, ZF
2009
发表期刊JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
卷号280期号:1页码:#REF!
通讯作者Zhang, AY (reprint author), Zhejiang Univ, Coll Mat Sci & Chem Engn, 38 Zheda Rd, Hangzhou 310027, Zhejiang, Peoples R China.
摘要To separate Sr(II), one of the heat emitting nuclides, from high level liquid waste (HLLW), a macroporous silica-based DtBuCH18C6 polymeric composite, DtOct/SiO(2)-P, was synthesized by means of molecular modification of 4,4',(5')-di(tert-butylcyclohexano)-18-crown-6 (DtBuC H18C6) with a long-chain 1-octanol. It was performed by impregnating and immobilizing DtBuCH18C6 and 1-octanol molecules into the pores of the SiO(2)-P particles, the macroporous silica-based support. The adsorption of Sr(II) and some co-existent typical elements Na(I), K(I), Cs(I), Ru(III), Mo(VI), Pd(II), Ba(II), La(III), and Y(III) contained in highly active liquid waste (HLW) towards DtOct/SiO(2)-P was investigated at 323 K. The effects of contact time and the concentration of HNO(3) in a range of 0.1-5.0M on the adsorption of the tested metals were examined. The macroporous silica-based DtOct/SiO(2)-P polymeric composite showed strong adsorption ability and high selectivity for Sr(II) over all of the tested metals except Ba(II). The optimum acidity of Sr(II) adsorption onto DtOct/SiO(2)-P was determined to be 2.0M HNO(3). The bleeding behavior of DtOct/SiO(2)-P in aqueous phase was evaluated using total organic carbon (TOC) analysis. The content of TOC increased with increasing the HNO(3) concentration and contact time. It resulted from the decrease in the stability of the associated species, C(8)H(17)-OHaEuro cent DtBuCH18C6 formed through hydrogen binding, because of high temperature.
文章类型Article
学科领域Chemistry; Nuclear Science & Technology
DOI10.1007/s10967-008-7411-4
收录类别SCI
WOS类目Chemistry, Analytical ; Chemistry, Inorganic & Nuclear ; Nuclear Science & Technology
WOS记录号WOS:000264325900025
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被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226738
专题院士
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Zhang, AY,Xiao, CL,Chai ZF,et al. SPEC Process II. Adsorption of strontium and some typical co-existent elements contained in high level liquid waste onto a macroporous silica-based crown ether impregnated functional composite[J]. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,2009,280(1):#REF!.
APA Zhang, AY,Xiao, CL,柴之芳,&Chai, ZF.(2009).SPEC Process II. Adsorption of strontium and some typical co-existent elements contained in high level liquid waste onto a macroporous silica-based crown ether impregnated functional composite.JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,280(1),#REF!.
MLA Zhang, AY,et al."SPEC Process II. Adsorption of strontium and some typical co-existent elements contained in high level liquid waste onto a macroporous silica-based crown ether impregnated functional composite".JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 280.1(2009):#REF!.
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