Preparation of self-standing, submillimeter-thick porous titania films with anatase nanocrystallites using evaporation-induced self-assembly

Hui Suk Yun, Haoshen Zhou, Itaru Honma

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Self-standing transparent submillimeter-thick (∼0.34 mm) mesoporous titania films were prepared using the evaporation-induced self-assembly (EISA) of a triblock copolymer template and titanium tetraethoxide. Performing EISA at low temperature and low humidity improved the transparency and continuity of the films. As synthesized films had a well-defined hexagonal mesostructure and the existence of both amorphous titania and anatase nanocrystallites (2 nm) was confirmed. The films that were calcined at 400°C were composed of anatase nanocrystallites (14-16 nm) and had a BET surface area of 90 m2 g-1 with 13-nm pores. The films were characterized using XRD, FE-SEM, TEM, and N2 adsorption-desorption measurements.

Original languageEnglish
Pages (from-to)169-173
Number of pages5
JournalJournal of Inorganic and Organometallic Polymers and Materials
Volume16
Issue number2
DOIs
Publication statusPublished - 2006 Jun
Externally publishedYes

Keywords

  • Evaporation-induced self-assembly
  • Self-assembling films
  • Submillimeter-thick mesoporous titania

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

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