| A study on effect of sonochemistry in a reverberation field |
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| 引用本文： | WANG Shuangwei(Dep. of Physics. Northeast Normal University,Changchun 130024)FENG Ruo,MO Xiping and SHI Qun (Institute of Acoustics,Department of Chemistry,Nanjing University. Nanjing 210008). A study on effect of sonochemistry in a reverberation field[J]. 声学学报：英文版, 1993, 0(2) |
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| 作者姓名： | WANG Shuangwei(Dep. of Physics. Northeast Normal University Changchun 130024)FENG Ruo MO Xiping and SHI Qun (Institute of Acoustics Department of Chemistry Nanjing University. Nanjing 210008) |
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| 作者单位： | WANG Shuangwei(Dep. of Physics. Northeast Normal University，Changchun 130024)FENG Ruo，MO Xiping and SHI Qun (Institute of Acoustics，Department of Chemistry，Nanjing University. Nanjing 210008) |
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| 基金项目： | Project is supported by the National Natural Science foundation of China the work has been finished in the labouratory of Modern Acoustics,Nanjing University,Nanjing |
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| 摘 要： | In this paper,an ultrasound with frequency of 815 kHz was used to re-search the sonochemical yield in a small-size reverberation field by the methodof fluorescent spectrum analysis.There are two characteristics on the effect ofsonochemistry in the reverberation field:First,the cavitation threshold wasabout 0.3W/cm~2(it was 0.7W/cm~2 in travelling field);Second,when thesound intensity was larger than the threshold,the sonochemical yield increasedas the intensity increased and increased rapidly after the intensity was at1.69-2.13W/cm~2,so that there was a upturned point in the curve of the result(which would tend to saturation in the travelling field).The theoretical analysisshows that the reason of the threshold decrease is that the sound energy densitybecomes high in the reverberation field,and the upturned point results from thedisturbance of the radiation pressure on the liquid surface.Therefore,by exper-iment and theory this paper shows that a reverberation field has to be built forthe higher sonoche
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A study on effect of sonochemistry in a reverberation field |
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| WANG Shuangwei. A study on effect of sonochemistry in a reverberation field[J]. Chinese Journal of Acoustics, 1993, 0(2) |
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| Authors: | WANG Shuangwei |
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| Abstract: | In this paper, an ultrasound with frequency of 815 kHz was used to research the sonochemical yield in a small-size reverberation field by the method of fluorescent spectrum analysis. There are two characteristics on the effect of sonochemistry in the reverberation field: First, the cavitation threshold was about 0.3 W / cm2 (it was 0.7 W / cm2 in travelling field); Second, when the sound intensity was larger than the threshold, the sonochemical yield increased as the intensity increased and increased rapidly after the intensity was at 1.69-2.13 W / cm2, so that there was a upturned point in the curve of the result (which would tend to saturation in the travelling field). The theoretical analysis shows that the reason of the threshold decrease is that the sound energy density becomes high in the reverberation field, and the upturned point results from the disturbance of the radiation pressure on the liquid surface. Therefore, by experiment and theory this paper shows that a reverberation field has to be built for the higher sonochemical yield. |
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| Keywords: | Sonochemistry Cavitation Reverberation field. |
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