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

Wang, Hongxia, Ding, Jie, Lee, Bin, Wang, Xungai and Lin, Tong 2007, Polypyrrole-coated electrospun nanofibre membranes for recovery of Au(III) from aqueous solution, Journal of membrane science, vol. 303, no. 1-2, pp. 119-125.

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Title Polypyrrole-coated electrospun nanofibre membranes for recovery of Au(III) from aqueous solution
Author(s) Wang, Hongxia
Ding, Jie
Lee, Bin
Wang, Xungai
Lin, Tong
Journal name Journal of membrane science
Volume number 303
Issue number 1-2
Start page 119
End page 125
Publisher Elsevier BV
Place of publication Amsterdam, The Netherlands
Publication date 2007-10-15
ISSN 0376-7388
Keyword(s) electrospun nanofibres
au recovery
polypyrrole
vapour polymerisation
membrane separation
nanofibre
fibre science
Summary 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.
Notes Reproduced with the specific permission of the copyright owner.
Language eng
Field of Research 100799 Nanotechnology not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2007, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30007227

Document type: Journal Article
Collections: Centre for Material and Fibre Innovation
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