Sonochemistry and sonoluminescence under simultaneous high- and low-frequency irradiation

被引：28

作者：

Brotchie, Adam ^{[1
]}

Ashokkumar, Muthupandian ^{[1
]}

Grieser, Franz ^{[1
]}

机构：

[1] Univ Melbourne, Particular Fluids Proc Ctr, Sch Chem, Melbourne, Vic 3010, Australia

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 22期

关键词：

D O I：

10.1021/jp8006987

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：

Sonoluminescence emission, sonochemiluminescence from luminol and the sonochemical yield of hydrogen peroxide were studied under a dual frequency field combining low-frequency (20 kHz) and high-frequency (355 kHz) ultrasound. Under certain conditions it was found that a synergistic enhancement of both sonoluminescence and sonochemical processes could be attained. Ultrasound parameters including pulsing conditions and sonication time were found to sensitively influence the efficiency of the dual-frequency mode operation. Possible mechanisms responsible for the dual-frequency effects are discussed.

引用

页码：8343 / 8348

页数：6

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