wang-polypyrrolecoatedelectrospun-2007.pdf (317.18 kB)
Polypyrrole-coated electrospun nanofibre membranes for recovery of Au(III) from aqueous solution
journal contribution
posted on 2007-10-15, 00:00 authored by Hong WangHong Wang, J Ding, B Lee, Xungai Wang, Tong LinIn 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.
History
Journal
Journal of membrane scienceVolume
303Issue
1-2Pagination
119 - 125Publisher
Elsevier BVLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
0376-7388eISSN
1873-3123Language
engNotes
Reproduced with the specific permission of the copyright owner.Publication classification
C1 Refereed article in a scholarly journal; C Journal articleCopyright notice
2007, Elsevier B.V.Usage metrics
Categories
No categories selectedKeywords
electrospun nanofibresau recoverypolypyrrolevapour polymerisationmembrane separationnanofibrefibre scienceScience & TechnologyTechnologyPhysical SciencesEngineering, ChemicalPolymer ScienceEngineeringELECTROLESS RECOVERYGOLD NANOPARTICLESACID-SOLUTIONSION-EXCHANGEPOLYMERMETALSPRECIPITATIONREDUCTIONGOLD(III)FIBERS