Cethyltrimethylammonium Bromide-Mediated Hexagonal-Structured Self-Assembly of Nanocrystalline Titania: Gravity Effect on Framework Formaition and Crystal Growth

Toshio SAKAI; Mitsuru OHNO; Hanae YANO; Hirobumi SHIBATA; Kanjiro TORIGOE; Shigenori UTSUMI; Kazutami SAKAMOTO; Naokiyo KOSHIKAWA; Satoshi ADACHI; Hideki SAKAI; Masahiko ABE

doi:10.15011/jasma.26.1.2

Toshio SAKAI, Mitsuru OHNO, Hanae YANO, Hirobumi SHIBATA, Kanjiro TORIGOE, Shigenori UTSUMI, Kazutami SAKAMOTO, Naokiyo KOSHIKAWA, Satoshi ADACHI, Hideki SAKAI, Masahiko ABE

Author information

Toshio SAKAI [Japan]
International Young Researchers Empowerment Center, Shinshu University [Japan]
Mitsuru OHNO [Japan]
Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science [Japan]
Hanae YANO [Japan]
Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science [Japan]
Hirobumi SHIBATA [Japan]
Department of Materials Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science [Japan]
Kanjiro TORIGOE [Japan]
Research Institute for Science and Technology, Tokyo University of Science [Japan]
Shigenori UTSUMI [Japan]
Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science [Japan]
Kazutami SAKAMOTO [Japan]
Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science [Japan]
Naokiyo KOSHIKAWA [Japan]
Japan Aerospace Exploration Agency [Japan]
Satoshi ADACHI [Japan]
Japan Aerospace Exploration Agency [Japan]
Hideki SAKAI [Japan]
Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science [Japan]
Research Institute for Science and Technology, Tokyo University of Science [Japan]
Masahiko ABE [Japan]
Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science [Japan]
Research Institute for Science and Technology, Tokyo University of Science [Japan]

JOURNAL OPEN ACCESS

2009 Volume 26 Issue 1 Pages 2-

DOI https://doi.org/10.15011/jasma.26.1.2

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Abstract

We examined the effects of temperature, mixing ratio of a titania precursor (titanium oxysulfate acid hydrate; TiOSAH)/cationic surfactant (cetyltrimethylammonium bromide; CTAB) and gravity on the framework formation (hexagonal structure, pore size and wall thickness) and crystal growth of hexagonal-structured self-assemblies of nanocrystalline (anatase) titania templated by CTAB (Hex-ncTiO2/CTAB Nanoskeleton). In order to examine the effect of gravity on the framework formation and crystal growth of the Hex-ncTiO2/CTAB Nanoskeleton, the Hex-ncTiO2/CTAB Nanoskeleton was prepared under increased-gravity environments (generated with centrifuge). We found that growth of nanocrystalline titania in and/or on the Hex-ncTiO2/CTAB Nanoskeleton was enhanced with higher temperature, lower TiOSAH content and higher gravity. On the other hand, temperature, the TiOSAH/CTAB mixing ratio and gravity did not affect significantly the hexagonal-structure formation and pore size of the Hex-ncTiO2/CATB Nanoskeleton.

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