Photocatalytic Purification of Water on the Titanium Oxide/Activated Carbon Fiber Photocatalysts Prepared by an Ionized Cluster Beam Method

Degradation of sec-Alcohols

Abstract

Preparation of titanium oxide photocatalysts loaded on activated carbon fiber (ACF) using an ionized cluster beam (ICB) method and their photocatalytic reactivity for the oxidative degradation of organic pollutants (alkyl alcohols, phenol) diluted in water were investigated. The utilization of the ICB method under oxygen atmosphere enables the preparation of titanium oxide photocatalysts on ACF relatively low temperature without causing any damages t the supports. Characterization using spectroscopic techniques indicates that fine particles of TiO₂ having a quantum size effect are formed on the supports mainly as an anatase structure. The combination of the photocatalytic reactivity of TiO₂ and the adsorption ability of ACF was effective for the degaradation of oraganic pollutants diluted in water into CO₂ and H₂O.