title: Facile preparation of Ag-coated TiO2 nanobelts and their photocatalytic activities.
abstract: This article describes facile preparation of Ag nanoparticles coated on TiO2 nanobelts and their visible-light photocatalysis activity toward the degradation of Rhodamine B. An Ag complex was adsorbed onto the TiO2 nanobelts by impregnation of the nanobelts into an [Ag(NH3)2]NO3 aqueous solution, and subsequently the Ag precursor was reduced at room temperature by a glucose solution to form Ag nanoparticle-coated TiO2 nanobelts. The visible-light photodegradation of Rhodamine B on such nanocomposite was studied and showed much higher photocatalytic activity than commercial P-25 TiO2 nanoparticles and pure TiO2 nanobelts. Using a seeding preparation procedure through dropwise addition of fresh aqueous solution of NH2NH2 and AgNO3 alternately, larger Ag particles on TiO2 nanobelts were obtained.
authors.affiliation: College of Science, Beijing Technology and Business University, 11 Fucheng Road, Beijing 100048, China.
authors.forename: Tianhao
authors.initials: T
authors.lastname: Ji
authors.forename: Liya
authors.initials: L
authors.lastname: Dong
authors.forename: Yang
authors.initials: Y
authors.lastname: Liu
authors.forename: Li
authors.initials: L
authors.lastname: Li
authors.forename: Baoguo
authors.initials: B
authors.lastname: Sun