Degradation of methylene blue under multibubble sonoluminescence condition

被引：40

作者：

Byun, KT ^{[1
]}

Kwak, HY ^{[1
]}

机构：

[1] Chung Ang Univ, Dept Engn Mech, Seoul 156756, South Korea

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2005年 / 175卷 / 01期

关键词：

hydroxyl radical; multibubble sonoluminescence (MBSL); methylene blue (MB); sonochemical reaction; ultrasound;

D O I：

10.1016/j.jphotochem.2005.04.001

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：

Methylene blue (MB) is one of typical textile dyestuffs that cannot be degraded by a conventional method such as biological treatment. In this study, degradation of MB in aqueous solution under ultrasonic field at the multibubble sonoluminescence (MBSL) condition was tried for the first time. At the optimum condition of MBSL, 0.1 mM MB solution was degraded completely within 30 min, which is quite faster than the reaction rate for the photocatalytic degradation of MB in aqueous TiO2, dispersions under UV-irradiation. The sonochemical degradation of MB at the MBSL condition was found to be first-order with respect to MB concentration. Also, it has been found that MB was degraded by the oxidation process by OH radicals. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：45 / 50

页数：6

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