Preparation of Ultrafine TiO2 Nanofibers and their Application in Removal of NOx in Air

Juengsuwattananon, Kannikar; Rujitanaroj, Pim On; Supaphol, Pitt; Pimpha, Nuttaporn; Matsuzawa, Sadao

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Test Method for Skin Damage of Titania Photocatalyst Nanoparticles In Vitro , p.9
Surface Roughness Control of Zirconia Films Using a Novel Photoresponsive Precursor Molecule for Improving its Photocatalytic Activity , p.13
Influence of Calcination Temperature on the Microstructure of Porous TiO₂ Film , p.17
Nanocrystalline TiO₂ Coated-Fabric for UV Shielding and Anti-Bacterial Functions, p.21
Preparation of Ultrafine TiO₂ Nanofibers and their Application in Removal of NO_x in Air, p.25
Performance of Photocatalysis/Chemical Oxidants in Aqueous TiO₂ Suspensions, p.29
Removal of Refractory Organic Compounds Using Peroxy Radical and Ozone Reaction in Aqueous Solution, p.33
Physicochemical Characteristics of ZnS Immobilized on Spherical Activated Carbon for Removing HA(Humic Acid), p.37
Characterization of Anodized TiO₂ for Hydrogen Evolution in Enzymatic PEC System , p.41

Home > Materials Science Forum > Eco-Materials Processing and Design IX > Preparation of Ultrafine TiO₂...

Paper Title:

Preparation of Ultrafine TiO₂ Nanofibers and their Application in Removal of NO_x in Air

Periodical	Materials Science Forum (Volume 569)
Main Theme	Eco-Materials Processing and Design IX
Edited by	Byungsei Jun, Hyungsun Kim, Chanwon Lee, Soo Wohn Lee
Pages	25-28
DOI	10.4028/www.scientific.net/MSF.569.25
Citation	Kannikar Juengsuwattananon et al., 2008, Materials Science Forum, 569, 25
Online since	January, 2008
Authors	Kannikar Juengsuwattananon, Pim On Rujitanaroj, Pitt Supaphol, Nuttaporn Pimpha, Sadao Matsuzawa
Keywords	Electrospinning Technique, Sol-Gel Method, TiO₂ Nanofibers
Price	US$ 28,-

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Abstract

Titanium dioxide nanofibers were fabricated by electrospinning technique. The titania solutions were obtained from adding various types of Ti precursor (Ti(OBu)4, Ti(OiPr)4, and Ti(OPr)4) to an ethanol solution containing polyvinyl pyrrolidone (PVP). Acetic acid was used to stabilize the solution and to control the hydrolysis reaction. The porous and well-defined crystalline structure was obtained after calcined at 450oC for 1 h. The thermal behavior, phase composition including crystallite size, as well as the morphology of as-synthesized nanofibers was obtained from thermogravimetric analysis (TGA), X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), respectively. The average diameter of these nanofibers was in the range from 100 to 400 nm depending on titania precursor. The photocatalytic activity of TiO2 fibers were evaluated for NOx degradation in a gaseous phase. The results demonstrated that at the same catalyst loading, the photocatalytic activity of TiO2 nanofiber was higher than the commercial Degussa P-25.