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Fabrication and photocatalytic activities of morphology-controlled titania nanoobject arrays by block copolymer templates

Title
Fabrication and photocatalytic activities of morphology-controlled titania nanoobject arrays by block copolymer templates
Authors
Peng J.Li X.Kim D.H.Knoll W.G.
Ewha Authors
김동하
SCOPUS Author ID
김동하scopus
Issue Date
2007
Journal Title
Macromolecular Rapid Communications
ISSN
1022-1336JCR Link
Citation
vol. 28, no. 21, pp. 2055 - 2061
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We report a simple scheme to fabricate organic/inorganic hybrid nanostructures with extraordinary morphologies by one-step spin coating, using a PS-b-PEO diblock copolymer as template coupled with sol-gel chemistry. The shape and size of the titania nanoobject can befine-tuned by controlling the amount of sol-gel precursor relative to PS-b-PEO and the composition of the precursor. Ordered arrays of nanoscopic titania objects such as nanodots, nanobowls, and nanonetworks were obtained from the initial hybrid nanostructures by removing the organic matrix by UV treatment. Photocatalytic activities of the resulting titania nanoobjects were investigated in terms of the degradation of a typical dye. © 2007 WILEY-VCH Verlag GmbH & Co. KCaA, Weinheim.
DOI
10.1002/marc.200700430
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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