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

Hongxia Wang; Jie Ding; Bin Lee; Xungai Wang; Tong Lin

doi:10.1016/j.memsci.2007.07.012

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

Hongxia Wang, Jie Ding, Bin Lee, Xungai Wang, Tong Lin

Research output: Journal article publication › Journal article › Academic research › peer-review

68 Citations (Scopus)

Abstract

In this paper, for the first time, polypyrrole-coated electrospun nanofibre mats have been used as separation membranes to electrolessly recover Au from aqueous [Au(III)Cl₄]^- solutions, based on a continuous-flow membrane separation process. With a [Au(III)Cl₄]^- solution passing through the nanofibre membrane, the Au(III) ions were converted into elemental Au. The gold recovered was deposited on the nanofibre membranes in the form of Au 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 Au, and the recovery efficiency is affected by the membrane thickness, the permeate flux rate and the initial [Au(III)Cl₄]^- concentration.

Original language	English
Pages (from-to)	119-125
Number of pages	7
Journal	Journal of Membrane Science
Volume	303
Issue number	1-2
DOIs	https://doi.org/10.1016/j.memsci.2007.07.012
Publication status	Published - 15 Oct 2007
Externally published	Yes

Keywords

Au recovery
Electrospun nanofibres
Membrane separation
Polypyrrole
Vapour polymerisation

ASJC Scopus subject areas

Biochemistry
General Materials Science
Physical and Theoretical Chemistry
Filtration and Separation

More information

10.1016/j.memsci.2007.07.012

Cite this

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

abstract = "In this paper, for the first time, polypyrrole-coated electrospun nanofibre mats have been used as separation membranes to electrolessly recover Au from aqueous [Au(III)Cl4]- solutions, based on a continuous-flow membrane separation process. With a [Au(III)Cl4]- solution passing through the nanofibre membrane, the Au(III) ions were converted into elemental Au. The gold recovered was deposited on the nanofibre membranes in the form of Au 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 Au, and the recovery efficiency is affected by the membrane thickness, the permeate flux rate and the initial [Au(III)Cl4]- concentration.",

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AU - Wang, Hongxia

AU - Ding, Jie

AU - Lee, Bin

AU - Wang, Xungai

AU - Lin, Tong

PY - 2007/10/15

Y1 - 2007/10/15

N2 - In this paper, for the first time, polypyrrole-coated electrospun nanofibre mats have been used as separation membranes to electrolessly recover Au from aqueous [Au(III)Cl4]- solutions, based on a continuous-flow membrane separation process. With a [Au(III)Cl4]- solution passing through the nanofibre membrane, the Au(III) ions were converted into elemental Au. The gold recovered was deposited on the nanofibre membranes in the form of Au 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 Au, and the recovery efficiency is affected by the membrane thickness, the permeate flux rate and the initial [Au(III)Cl4]- concentration.

AB - In this paper, for the first time, polypyrrole-coated electrospun nanofibre mats have been used as separation membranes to electrolessly recover Au from aqueous [Au(III)Cl4]- solutions, based on a continuous-flow membrane separation process. With a [Au(III)Cl4]- solution passing through the nanofibre membrane, the Au(III) ions were converted into elemental Au. The gold recovered was deposited on the nanofibre membranes in the form of Au 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 Au, and the recovery efficiency is affected by the membrane thickness, the permeate flux rate and the initial [Au(III)Cl4]- concentration.

KW - Au recovery

KW - Electrospun nanofibres

KW - Membrane separation

KW - Polypyrrole

KW - Vapour polymerisation

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DO - 10.1016/j.memsci.2007.07.012

M3 - Journal article

AN - SCOPUS:34548337189

SN - 0376-7388

VL - 303

SP - 119

EP - 125

JO - Journal of Membrane Science

JF - Journal of Membrane Science

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ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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