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

Chikashi Nakanishi, Saori Ikeda, Tetsuhiko Isobe, Mamoru Senna

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)103-106
Number of pages4
JournalJournal of Sol-Gel Science and Technology
Volume26
Issue number1-3
DOIs
Publication statusPublished - 2003 Jan

Fingerprint

Silicon Dioxide
Silica
silicon dioxide
tetraethyl orthosilicate
Nonionic surfactants
Cyclohexane
cyclohexane
Ether
Polyethylene glycols
micrometers
Ethers
ethers
Iron
surfactants
Irradiation
injection
aqueous solutions
iron
irradiation
tetraethoxysilane

Keywords

  • Complex formation
  • Photo-sensitivity
  • Reverse micelle method
  • Silica fine particles

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

UV-Induced formation of [Fe(bpy)3]2+ complex and its confinement into silica fine particles. / Nakanishi, Chikashi; Ikeda, Saori; Isobe, Tetsuhiko; Senna, Mamoru.

In: Journal of Sol-Gel Science and Technology, Vol. 26, No. 1-3, 01.2003, p. 103-106.

Research output: Contribution to journalArticle

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