HIGHLY SELECTIVE AND EFFICIENT TRANSPORT OF MERCURY AS HG(NO2)(4)(2-) ION USING BA2+-18-CROWN-6 AS CARRIER

被引：56

作者：

PARHAM, H ^{[1
]}

SHAMSIPUR, M ^{[1
]}

机构：

[1] SHIRAZ UNIV,DEPT CHEM,SHIRAZ,IRAN

来源：

JOURNAL OF MEMBRANE SCIENCE | 1994年 / 86卷 / 1-2期

关键词：

LIQUID MEMBRANE; MERCURY TRANSPORT; BA2+-18-CROWN-6 CARRIER; HG(NO2)(4)(2-) ANION; THIOSULFATE;

D O I：

10.1016/0376-7388(93)E0113-X

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Barium-18-crown-6 complex was used as an excellent carrier for the uphill transport of mercury as Hg(NO2)(4)(2-) complex ion through a chloroform liquid membrane. In the presence of thiosulfate ion, as a suitable metal ion acceptor in the receiving phase, the carrier can selectively and efficiently transport Hg2+ ion from aqueous solution containing other cations such as Cd2+, Pb2+, Zn2+, Fe2+, Ni2+, Cu2+ and Ag+. The amount of Hg2+ transport across the liquid membrane after 2.5 hr is 94.2 +/- 1.3%, while that of other cations is < 6%.

引用

页码：29 / 35

页数：7

共 16 条

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