Microscopic Characterization and Analysis of Electrospun TiO2-PVP and TiO2-PVDF Fibers

Joshua Zheyan Soo; Bee Chin Ang; Boon Hoong Ong

doi:10.4028/www.scientific.net/SSP.264.33

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HomeSolid State PhenomenaSolid State Phenomena Vol. 264Microscopic Characterization and Analysis of...

Microscopic Characterization and Analysis of Electrospun TiO₂-PVP and TiO₂-PVDF Fibers

Abstract:

Titanium dioxide (TiO₂) is a suitable material to be used in the field of photocatalytic water treatment. In this research, TiO₂ membrane fibers were synthesized using a combination of non-aqueous sol gel method and electrospinning technique. Titanium isopropoxide (TTIP) was used as the precursor for the TiO₂filler of the fibers. Both polyvinylpyrrolidone (PVP) and polyvinylidene fluoride (PVDF) were used as the polymer base to obtain the respective membrane fibers. The effects of weight concentration of TTIP as well as the type and molecular weight of the polymer on the morphology of the fibers were studied. Microscopic characterization using field-emission scanning electron microscopy (FESEM) and Energy Dispersive X-Ray (EDX) analysis was performed to obtain the morphology and elemental composition of the fibers. Sub-micron range fibers with a continuous network were generally obtained. Fibers that are subjected to post-electrospinning calcination have a lower fiber diameter. Polymer decomposition is shown to occur during calcination which yielded higher purity TiO₂fibers. The use of higher molecular weight polymers can produce a stronger fibre network for membranes.

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Periodical:

Solid State Phenomena (Volume 264)

Pages:

33-37

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.264.33

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Online since:

September 2017

Authors:

Joshua Zheyan Soo, Bee Chin Ang, Boon Hoong Ong*

Keywords:

Electrospinning, Fibers, Surface Morphologies, TiO₂

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