Journal article

Kinetics of the sonophotocatalytic degradation of orange G in presence of Fe3

Jagannathan Madhavan, Franz Grieser, Muthupandian Ashokkumar

WATER SCIENCE AND TECHNOLOGY | IWA PUBLISHING | Published : 2009

Abstract

The degradation and mineralization of orange G (OG) in aqueous solution by means of ultrasound irradiation at a frequency of 213 kHz and its combination with Fe(3+) were investigated. The effect of Fe(3+) concentration on the degradation efficiency was studied. The degradation of the dye followed first-order like kinetics under the conditions examined. A comparison study on the hybrid technique of sonophotocatalytic degradation in the presence of Fe(3+) (SonoFenton) with the individual techniques of photocatalysis and sonolysis was also performed. A slight synergistic enhancement in the degradation of the dye was observed during the sonophotocatalytic oxidation of OG using Fe(3+). The total ..

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