Mechanism of enhancement of sonochemical-reaction efficiency by pulsed ultrasound
Tuziuti, T, Yasui, K, Lee, J, Kozuka, T, Towata, A and Iida, Y (2008) Mechanism of enhancement of sonochemical-reaction efficiency by pulsed ultrasound Journal of Physical Chemistry A, 112 (22). pp. 4875-4878.
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The enhancement of sonochemical-reaction efficiency by pulsed ultrasound at 152 kHz has been studied experimentally through absorbance measurements of triiodide ions from sonochemical oxidation of potassium iodide at different liquid volumes to determine sonochemical efficiency defined by reacted molecules per input ultrasonic energy. The mechanism for enhancement of the reaction efficiency by pulsed ultrasound is discussed using captured images of sonochemiluminescence (SCL), and measured time-resolved signals of the SCL pulses and pressure amplitudes. The high sonochemical-reaction efficiency by pulsed ultrasound, compared with that by continuous-wave ultrasound, is attributed both to the residual pressure amplitude during the pulse-off time and to the spatial enlargement of active reaction sites.
|Subjects :||Chemical and Process Engineering|
|Divisions :||Faculty of Engineering and Physical Sciences > Chemical and Process Engineering|
|Date :||May 2008|
|Identification Number :||10.1021/jp802640x|
|Copyright Disclaimer :||Copyright © 2008 American Chemical Society|
|Additional Information :||Item not available from this repository|
|Depositing User :||Symplectic Elements|
|Date Deposited :||16 Aug 2016 14:29|
|Last Modified :||16 Aug 2016 14:29|
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