Related Experiment Video
Updated: Aug 21, 2026

Detecting, Visualizing and Quantitating the Generation of Reactive Oxygen Species in an Amoeba Model System
Published on: November 5, 2013
[Fe(II) enhanced sonochemical degradation of azo dye Acid Red B (ARB)]
Jian-tuan Ge1, Jiu-hui Qu, Min Xu
1State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Abstract:
Sonochemical degradation of azo dye Acid Red B (ARB) was studied in this paper. The effect of pH and ferrous ion concentrations on the process was investigated. The results show that decolorization of ARB proceeds faster in acidic medium. The production of H2O2 is proportional to sonication time. The presence of Fe(II), which could react with H2O2 to produce *OH, enhances the sonochemical decolorizatio and degradation of the dye. The decolorization rates of ARB are 2.17 and 2.75 times faster, respectively, when Fe(II) concentrations are 1.43 mg/L and 2.85 mg/L. The UV absorptions at 322 nm and 254 nm also reduce ARB dramatically.
More Related Videos
Related Concept Videos
Aryldiazonium Salts to Azo Dyes: Diazo Coupling
Diazonium Group Substitution: –OH and –H
Electrophilic Aromatic Substitution: Sulfonation of Benzene
Acid Mine Drainage
Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene
Nucleophilic Aromatic Substitution of Aryldiazonium Salts: Aromatic SN1
In the Sandmeyer reaction, for example, the diazonio group is replaced by a chloro, bromo, or cyano...

