Ultrasound Research Today is a free monthly online journal that collates and summarizes the latest research about Ultrasound, including details on screening, diagnosis, pregnancy, detection.

Enhanced electro-catalytic degradation of chloroorganic compounds in the presence of ultrasound.

Yasman Y, Bulatov V, Rabin I, Binetti M, Schechter I

Department of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel.

The application of finely divided (black) Pd and Pd-Fe powder in the sono-electro-catalytic reduction of chlorophenoxy herbicides (2,4-D) and chlorophenols (2,4-DCP) in aqueous solutions allows for effective destruction of toxic chlorinated aromatic compounds. At 20 degrees C complete conversion of these compounds is observed within 10 min. On bimetallic Pd/Fe catalyst, intermediates due to the oxidation reaction are detected in addition to the products of dechlorination. The bimetallic catalyst appears to be energetically and economically superior to the Pd. In both cases, the reaction times were considerably shortened in comparison with traditional electro-catalytic processes.

Published 27 February 2006 in Ultrason Sonochem, 13(3): 271-7.
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