Decomposition of chlorofluorocarbons and hydrofluorocarbons in water by ultrasonic irradiation

被引：29

作者：

Hirai, K

Nagata, Y

Maeda, Y

机构：

[1] UNIV OSAKA PREFECTURE,COLL ENGN,SAKAI,OSAKA 593,JAPAN

[2] UNIV OSAKA PREFECTURE,ADV SCI & TECHNOL RES INST,SAKAI,OSAKA 593,JAPAN

来源：

ULTRASONICS SONOCHEMISTRY | 1996年 / 3卷 / 03期

关键词：

sonolysis; chlorofluorocarbons; cavitation bubbles;

D O I：

10.1016/S1350-4177(96)00027-2

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The sonochemical degradation of CFC-113 (F2ClC-CCl2F), HCFC-225ca (F3C-CF2-CCl2H), HCFC-225cb (F2ClC-CF2-CClFH) and HFC-134a (F3C-CF2H) in water was investigated. The decomposition rates of CFC-113 increased with increasing the concentration of the CFC and at high concentration the rates far exceeded the rate of OH radical formation by water sonolysis, and OH radicals seemed to have little effect on the decomposition. The pyrolysis in the cavitation bubbles was suggested.

引用

页码：S205 / S207

页数：3

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