Sonochemistry and sonoluminescence under dual-frequency ultrasound irradiation in the presence of water-soluble solutes

被引：41
作者：
Brotchie, Adam [1 ]
Grieser, Franz [1 ]
Ashokkumar, Muthupandian [1 ]
机构：
[1] Univ Melbourne, Particulate Fluids Proc Ctr, Sch Chem, Melbourne, Vic 3010, Australia
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 27期
关键词：
D O I：
10.1021/jp801763v
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 sonoluminescence emission. and sonochernical efficiency of a typical laboratory scale, high-frequency standing wave reactor (355 kHz), stimulated by low-frequency pulses (20 kHz) has been investigated in the presence and absence of some water-soluble solutes, namely, propanol and polyethylene oxide. It has been found that, although dual-frequency sonication causes a decrease in the integrated sonoluminescence intensity and sonochemical efficiency in water, in the presence of solutes, a significant enhancement in activity could be attained. This enhancement effect is ascribed, in part, to changes in the extent of bubble coalescence brought about by the water-soluble solutes.
引用
收藏
页码：10247 / 10250
页数：4
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