A study investigating the sonoelectrochemical degradation of an organic compound employing Fenton's reagent

被引：43

作者：

Abdelsalam, ME ^{[1
]}

Birkin, PR ^{[1
]}

机构：

[1] Univ Southampton, Dept Chem, Southampton SO9 5NH, Hants, England

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2002年 / 4卷 / 21期

关键词：

D O I：

10.1039/b205987h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The degradation of an organic dye molecule (specifically meldola blue, MDB) is reported under the influence of power ultrasound in combination with electrochemically-generated hydrogen peroxide. A novel flow system is employed to measure the degradation as a function of time while minimising the disturbance to the acoustics of the sonoelectrochemical reactor employed. The effect of adding Fe2+ to the rate of dye degradation is measured and demonstrated to be significant. Under optimum conditions the rate constant for dye degradation was found to reach a maximum value of (23.7 +/- 0.35) 10(-3) min(-1) assuming pseudo-first order kinetics. The rate constant for the complete destruction of MDB, determined by chemical oxygen demand, was found to be significantly slower at (10.2 +/- 2.6) 10(-3) min(-1).

引用

页码：5340 / 5345

页数：6

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