Preparation and Characterization TiO2 Aerogel Fibers

Miao Lv; Guo Tong Qin; Wei Wei

doi:10.4028/www.scientific.net/MSF.743-744.434

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HomeMaterials Science ForumMaterials Science Forum Vols. 743-744Preparation and Characterization TiO2 Aerogel...

Preparation and Characterization TiO₂ Aerogel Fibers

Abstract:

TiO₂ aerogel fibers have been fabricated by electron span combined supercritical drying technique. Polyvinylpyrrolidone (PVP)/TiO₂ composite fibers are prepared by electrospinning PVP and TiO₂ precursor Ti (OC₄H₉)₄. TiO₂ aerogel fibers are obtained by supercritical drying PVP/TiO₂ composite fibers using ethanol as media. Structural of the aerogel fibers was investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD) and N₂adsorption at 77 K. The effect of mass ratio of PVP/TiO₂ was investigated. SEM shows that pore structure of nanofibers was well developed, with the diameter of nanofibers about 2 μm. N₂ adsorption/desorption data show that the highest surface area of aerogel fibers reached 241.6 m²/g with the average pore diameter about 10 nm. The aerogel fibers were anatase type TiO₂.

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Materials Science Forum (Volumes 743-744)

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434-437

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.743-744.434

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Online since:

January 2013

Authors:

Miao Lv, Guo Tong Qin, Wei Wei

Keywords:

Electro-Spinning, Supercritical Drying, TiO₂ Aerogel Fibers

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