Please use this identifier to cite or link to this item:
|Title:||Conductive electrospun PANi-PEO/TiO2 fibrous membrane for photo catalysis|
|Citation:||Neubert, S., Pliszka, D., Thavasi, V., Wintermantel, E., Ramakrishna, S. (2011-05-15). Conductive electrospun PANi-PEO/TiO2 fibrous membrane for photo catalysis. Materials Science and Engineering B: Solid-State Materials for Advanced Technology 176 (8) : 640-646. ScholarBank@NUS Repository. https://doi.org/10.1016/j.mseb.2011.02.007|
|Abstract:||The integration of electrospinning and electrospraying to prepare the fibrous catalytic filter membrane is demonstrated. The non-conductive polyethylene oxide (PEO) is blended with (±)-camphor-10-sulfonic acid (CSA) doped conductive polyaniline (PANi) for electrospinning. The conductive CSA/PANi-PEO composite fibers are produced upon electrospinning, which are used as the conductive collector for electrospraying process by which titanium dioxide (TiO2) nanoparticles (NPs) are sprayed and allowed to adsorb on the fibers. The degree of adsorption and dispersion of nano TiO2 catalysts on the surface of the CSA/PANi-PEO fibers exhibit a stronger dependence on weight percentage (wt%) of PANi in PEO solution and the strength of electrical conductivity of the fibers used during electrospraying. CSA/PANi-PEO fibers as collector reduce the wastage of TiO2 NPs during electrospraying to lesser than 5%. Among the three different composition of PANi studied, PEO with 12 wt% PANi yields very uniform diameter and beads-free fibrous structure with higher electrical conductivity. 12 wt% CSA/PANi-PEO fibrous membrane is found to support for greater dispersion of TiO2 NPs. The photocatalytic activity of the as-prepared TiO 2-PANi-PEO catalytic membrane is tested against the toxicant simulant 2-chloroethyl phenyl sulfide (CEPS) under the ultraviolet light irradiation. It is observed that the TiO2 nanoparticles catalysts embedded PANi-PEO fibrous membrane decontaminated the toxicant CEPS significantly, which is due to uniform dispersion of the catalysts produced by the methodology. © 2011 Elsevier B.V. All rights reserved.|
|Source Title:||Materials Science and Engineering B: Solid-State Materials for Advanced Technology|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jan 21, 2019
WEB OF SCIENCETM
checked on Jan 2, 2019
checked on Oct 26, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.