The Fabrication of TiO2 Mesoporous Thick Films by Employing a Pre-Embedded ZnO Nanorods Support
- Authors
- He, Weizhen; Qiu, Jijun; Park, Se-Jeong; Lee, Jea-Ho; Kim, Yang-Do; Kim, Hyung-Kook; Hwang, Yoon-Hwae
- Issue Date
- Dec-2009
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Mesoporous; TiO2; Thick Films; Sol-Gel; Evaporation-Induced Self-Assembly (EISA)
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.9, no.12, pp.7145 - 7149
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 9
- Number
- 12
- Start Page
- 7145
- End Page
- 7149
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/21749
- DOI
- 10.1166/jnn.2009.1599
- ISSN
- 1533-4880
- Abstract
- TiO2 mesoporous films with a thickness more than 2 Am were synthesized through the evaporation-induced self-assembly approach. In order to prevent the formation of cracks due to the strain during the calcination, we employed the ZnO nanorod arrays as a pre-embedded support, which were obtained from an aqueous solution method. The spaces between ZnO nanorods were filled with TiO2 sol-gel by a dip-coater. Then ZnO nanorods embedded in the thick film were eliminated by a wet chemical etching method and the left spaces were refilled by the TiO2 sol-gel. As a result, a dense and thick TiO2 mesoporous film was obtained. The resultant materials were characterized in detail by using small angle X-ray diffraction (SAXRD), field-emission scanning electron microscopy (FESEM) and transmission electron microscopy methods (TEM).
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Collections - College of Engineering > Materials Science and Engineering Major > 1. Journal Articles
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