(322f) TiO2 Hollow Nanofibers Templated by Electrospun Polyethylene Oxide (PEO) Aqueous Solutions
AIChE Annual Meeting
2008
2008 Annual Meeting
Materials Engineering and Sciences Division
Transport Processes in Materials Synthesis and Applications
Tuesday, November 18, 2008 - 2:00pm to 2:20pm
A new and simple method of fabricating TiO2 hollow nanofibers was developed using electrospinning jet. A viscous aqueous solution of polyethylene oxide (PEO) was electrospun and the elongated jets of the PEO solution were introduced into a titanium tetraisopropoxide (TTIP)-hexane solution. The hydrolysis reaction of TTIP induced at the interface between polymer aqueous solution and TTIP solution enabled the formation of hollow TiO2 nanofibers in submicron scale diameter. The dependence of the product morphology on the preparation conditions, such as the molecular weight of PEO, the concentration of PEO solution, and the voltage of electrospinning was investigated.
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