UV-Induced formation of [Fe(bpy)3]2+ complex and its confinement into silica fine particles

Chikashi Nakanishi; Saori Ikeda; Tetsuhiko Isobe; Mamoru Senna

doi:10.1023/A:1020749604691

UV-Induced formation of [Fe(bpy)₃]²⁺ complex and its confinement into silica fine particles

Chikashi Nakanishi, Saori Ikeda, Tetsuhiko Isobe, Mamoru Senna

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Silica fine particles in a single or sub-micrometer regime, containing FeCl₃ and 2,2′-bipyridine (bpy), were prepared by utilizing reverse micellar method. Formation of tris-bpy iron(II) ([Fe(bpy)³]²⁺) complex was induced in the silica fine particles by UV irradiation at 365 nm. The starting micellar solution was obtained by an injection of 0.04 cm³ HCl aqueous solution into 5 cm³ tetraethyl orthosilicate (TEOS)/cyclohexane (2 cm³/3 cm³) mixed solution containing 4-14 vol% of nonionic surfactant, polyoxyethylene(5) nonylphenyl ether (NP-5). Size of the silica particles was regulated by the concentration of NP-5.

Original language	English
Pages (from-to)	103-106
Number of pages	4
Journal	Journal of Sol-Gel Science and Technology
Volume	26
Issue number	1-3
DOIs	https://doi.org/10.1023/A:1020749604691
Publication status	Published - 2003 Jan 1

Keywords

Complex formation
Photo-sensitivity
Reverse micelle method
Silica fine particles

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Chemistry(all)
Biomaterials
Condensed Matter Physics
Materials Chemistry

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