학술논문
Photoelectrochemical and photocatalytic aspects of semiconductor-metal nanocomposites.
Document Type
Theses
Author
Source
Dissertation Abstracts International; Dissertation Abstract International; 65-09B.
Subject
Language
English
Abstract
Summary: Photocatalytic properties. Colloidal suspension of TiO 2-Au Nanocomposites demonstrates greater photocatalytic activity than TiO2 alone. Presence of a metal- metal ion mixture enhances the catalytic activity of the composite semiconductor. Phototoillumination of TiO2 containing an optimal ratio of Au(0)/Au(III) lead to a ∼40% enhancement in the photocatalytic oxidation efficiency of thiocyanate---a probe specie---compared to TiO2 alone. Similarly, the reduction of fullerene is catalyzed in the presence of Au nanoparticles of different sizes.