4.6 Article

Preparation of TiO2 hollow fibers using poly(vinylidene fluoride) hollow fiber microfiltration membrane as a template

Journal

MATERIALS CHEMISTRY AND PHYSICS
Volume 94, Issue 2-3, Pages 322-327

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2005.05.008

Keywords

TiO(2); TiO(2) hollow fiber; polymeric hollow fiber membrane; template method

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TiO(2) hollow fibers were successfully prepared by using poly(vinylidene fluoride) hollow fiber microfiltration membrane as a template. The preparation procedure includes repeated impregnation of the TiO(2) precursor in the pores of the polymeric membrane, and calcination to burn off the template, producing the TiO(2) hollow fibers. The TiO(2) hollow fibers were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). TiO(2) hollow fibers with other structures, such as honeycomb monolith and spring, were also prepared by preshaping the polymeric membranes into the honeycomb structure and spring, respectively. The phase structure of the TiO(2) hollow fibers could be readily adjusted by changing the calcination temperature. (c) 2005 Elsevier B.V. All rights reserved.

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