Inducing Sensitivity to Heavy Metal Ions in Polypyrrole Modified by Azamacrocyclic Ligands
Inducing Sensitivity to Heavy Metal Ions in Polypyrrole Modified by Azamacrocyclic Ligands
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氮杂大环配体修饰聚吡咯诱导重金属离子敏感性
DOI:
10.1002/elan.200904637
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发表时间:
2009
期刊:
影响因子:
3
通讯作者:
Pawlowski P
中科院分区:
文献类型:
--
作者:
Pawlowski P
An azamacrocyle doped polypyrrole is considered as a material showing heavy metal cation sensitivity and examples with Ni2+, Zn2+, and Cu2+cations are tested. Heavy metal ion binding agent: 1,4,8,11‐tetraazacyclotetradecane (cyclam) or its derivatives were introduced into a conducting polymer film in different ways: i) neutral cyclam was incorporated by polymerization from 1,4,8,11‐tetraazacyclotetradecane containing solution, ii) 1,4,8,11‐tetraazacyclotetradecane‐1,4,8,11‐tetraacetate anions (TETA) were introduced, acting as co‐dopant ions in chloride containing solutions, iii) polymerization was carried out from solution containing pyrrole and a composite of pyrrole with Ni(II) cyclam derivative complex:N‐(4‐amino‐6‐(1,3,5,8,12‐pentaazacyclotetradecan‐3‐yl)‐1,3,5‐triazin‐2‐yl)‐1H‐pyrrole‐2‐carboxamide nickel(II) perchlorate (ET679). In KCl and NiCl2solutions the freshly obtained oxidized polypyrrole layers modified by cyclam or TETA anions exhibited typical anion exchanging properties as confirmed in voltammetric and potentiometric experiments. Potentiometric cationic sensitivity and selectivity towards nickel ions was induced after conditioning or polarization in alkaline (NaOH or KOH) media and Ni2+solution; this was accompanied by Ni(II) retention in the polymer film. Similar cationic sensitivity was observed also for polypyrrole with cyclam in case of Zn2+and Cu2+ions.
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影响因子:
4.5
作者:
M. Bowers;F. Anson;S. Feldberg
通讯作者:
S. Feldberg
DOI:
10.1039/dt9770001473
发表时间:
1977
期刊:
Journal of The Chemical Society-dalton Transactions
影响因子:
--
作者:
M. Kodama;E. Kimura
通讯作者:
E. Kimura
影响因子:
6.1
作者:
S. Dong;G. Che
通讯作者:
G. Che
影响因子:
7.4
作者:
Agata Michalska;Ari Ivaska;A. Lewenstam
通讯作者:
A. Lewenstam
影响因子:
4.2
作者:
S. Dong;Zhisheng Sun;Ziling Lu
通讯作者:
Ziling Lu