...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Japanese journal of applied physics >Enhancement of Sonochemical Reaction by Dual-Pulse Ultrasound
【24h】

Enhancement of Sonochemical Reaction by Dual-Pulse Ultrasound

机译：双脉冲超声增强声化学反应

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In order to apply sonochemistry in wastewater treatment, enhancement of sonochemical reaction is necessary. Oxidation of potassium iodide and the degradation of acid orange 7 in aqueous solution using ultrasound irradiation were performed at 490 kHz. Power-modulated pulsed waves were employed and the enhancement of reaction amount was observed compared with using continuous wave. The enhancement ratio for irradiation to rigid wall was larger than that for irradiation to free surface. Moreover, the best modulated pulsed on time was experimentally determined and the effect of the superposition of pulsed waves (dual-pulse) was studied. Enhancement was also observed and calculated separately when using dual-pulse ultrasound. The enhancement upon the use of the dual-transducer was ascribed to the enlargement of sonochemical reaction field. The enhancement upon the incorporating pulsed waves was ascribed to both the reduction of reaction threshold effect and the residual acoustical pressure at the pulsed off time.
机译：为了将声化学应用于废水处理中，必须增强声化学反应。在490kHz下使用超声辐射进行碘化钾的氧化和水溶液中酸性橙7的降解。使用功率调制脉冲波，与使用连续波相比，观察到反应量的增加。刚性壁照射的增强率大于自由表面照射的增强率。此外，通过实验确定了最佳调制脉冲准时，并研究了脉冲波（双脉冲）叠加的影响。使用双脉冲超声时，还可以分别观察和计算增强效果。使用双换能器的增强归因于声化学反应场的扩大。引入脉冲波后的增强归因于反应阈值效应的降低和脉冲关闭时间的残余声压。

著录项

  • 来源
    《Japanese journal of applied physics》 |2011年第7issue2期|p.07HE07.1-07HE07.5|共5页
  • 作者

    Zheng Xu; Keiji Yasuda;

  • 作者单位

    Department of Chemical Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan;

    Department of Chemical Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号