title: Photoinduced dissolution and redeposition of Au nanoparticles supported on TiO2.
abstract: Au particles (mean size ca. 3 nm) supported on TiO(2) particles were irradiated by UV light (>300 nm) in aqueous solutions at 278 K. Photo-induced dissolution of Au nanoparticles followed by redeposition occurred in aqueous solutions containing halogen ions. The dissolution of Au nanoparticles yielded a Au(III) complex with a halogen ion; subsequent reduction of the Au(III) complex caused precipitation of larger Au particles on TiO(2).
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Kawahara
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Soejima
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Mitsui
authors.forename: Tomokazu
authors.initials: T
authors.lastname: Kiyonaga
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Tada
authors.forename: Seishiro
authors.initials: S
authors.lastname: Ito