Polypyrrole-coated electrospun nanofibre recovery of Au(III) from aqueous membranes for solution

被引：57

作者：

Wang, Hongxia

Ding, He

Lee, Bin

Wang, Xungai

Lin, Tong ^{[1
]}

机构：

[1] Deakin Univ, Ctr Mat & Fibre Innovat, Geelong, Vic 3217, Australia

[2] Def Sci & Technol Org, Human Protect & Performance Div, Port Melbourne, Vic 3207, Australia

来源：

JOURNAL OF MEMBRANE SCIENCE | 2007年 / 303卷 / 1-2期

关键词：

electrospun nanofibres; Au recovery; polypyrrole; vapour polymerisation; membrane separation;

D O I：

10.1016/j.memsci.2007.07.012

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this paper, for the first time, polypyrrole-coated electrospun nanofibre mats have been used as separation membranes to electrolessly recover An from aqueous [Au(III)Cl-4](-) solutions, based on a continuous-flow membrane separation process. With a [Au(III)Cl-4](-) solution passing through the nanofibre membrane, the Au(III) ions were converted into elemental An. The gold recovered was deposited on the nanofibre membranes in the form of An particles, as confirmed by EDX and XPS measurements. It has been found that the polypyrrole-coated electrospun nanofibres are good candidate membrane material for the recovery of An, and the recovery efficiency is affected by the membrane thickness, the permeate flux rate and the initial [Au(III)Cl-4](-) concentration. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：119 / 125

页数：7

共 48 条

[1] Conducting-polymer nanotubes for controlled drug release [J].