Complexation of copper ions by DETA-terminated magnetic carriers

被引：11

作者：

Gélinas, S ^{[1
]}

Finch, JA ^{[1
]}

Vreugdenhil, AJ ^{[1
]}

机构：

[1] McGill Univ, Dept Min & Met Engn, Montreal, PQ H3A 2B2, Canada

来源：

INTERNATIONAL JOURNAL OF MINERAL PROCESSING | 2000年 / 59卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

magnetic carriers; functionalization; copper ions; complexation; diethylenetriamine; copper selective electrode; XPS;

D O I：

10.1016/S0301-7516(99)00027-7

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

It has been shown that diethylenetriamine (DETA)-functionalized magnetic carriers are able to complex copper ions from dilute streams. Complexometric titration using a copper selective electrode indicates the complexation of 0.52 mu mol of Cu2+ per 50 mg of magnetic carriers. This loading capacity is equivalent to the removal of 100 ppm of copper ions from a I-liter solution by 3 g of magnetic carriers. X-ray photoelectron spectroscopy (XPS) results confirm the presence of Cu-2p bands, indicating the loading of copper ions. A shift of the nitrogen N-1s bands to higher binding energies confirms the involvement of secondary amine and amide nitrogen atoms from DETA-functionalized carriers in copper complexation. (C) 2000 Elsevier Science B.V. AU rights reserved.

引用

页码：1 / 7

页数：7

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