Abstract
Sono-catalytic decomposition of water was carried out using catalysts. Sono-catalytic system is the hybrid one of sonochemical and catalytic reactions. In present paper, ultrasonic irradiation effect on homogeneous catalytic system is shown. For instance, overall water splitting was performed by sono-catalytic method using FeNH4(SO2)2 homogenous system. Liquid water was hardly decomposed to H2 and 02 but to H2 and H2O2 by sonolysis. Hydrogen peroxide can be decompose to oxygen by catalysis using a few kind of catalysts such as MnO2. Only one of them was effective. Hydrogen and oxygen are obtained from water stoichiometrically and continuously by addition of FeNH4(SO4)2. In general, when a material is added to water, the reactivity decreases with increasing concentration of impurities. The influence of additives, however, was negligible at low concentration.
