Chemistry, Natural and Environmental Sciences, University of Southampton, Southampton SO17 1BJ, UK.
Chemistry, Natural and Environmental Sciences, University of Southampton, Southampton SO17 1BJ, UK.
Ultrason Sonochem. 2016 Mar;29:612-8. doi: 10.1016/j.ultsonch.2015.10.001. Epub 2015 Oct 9.
Electrochemical, acoustic and imaging techniques are used to characterise surface cleaning with particular emphasis on the understanding of the key phenomena relevant to surface cleaning. A range of novel techniques designed to enhance and monitor the effective cleaning of a solid/liquid interface is presented. Among the techniques presented, mass transfer of material to a sensor embedded in a surface is demonstrated to be useful in the further exploration of ultrasonic cleaning of high aspect ratio micropores. In addition the effect of micropore size on the cleaning efficacy is demonstrated. The design and performance of a new cleaning system reliant on the activation of bubbles within a free flowing stream is presented. This device utilised acoustic activation of bubbles within the stream and at a variety of substrates. Finally, a controlled bubble swarm is generated in the stream using electrolysis, and its effect on both acoustic output and cleaning performance are compared to the case when no bubbles are added. This will demonstrate the active role that the electrochemically generated bubble swarm can have in extending the spatial zone over which cleaning is achieved.
电化学、声学和成像技术被用于对表面清洁进行特征描述，特别强调对与表面清洁相关的关键现象的理解。本文提出了一系列旨在增强和监测固/液界面有效清洁的新型技术。在所提出的技术中，证明了嵌入在表面中的传感器的材料传质对于进一步探索高纵横比微孔的超声清洁是有用的。此外，还证明了微孔尺寸对清洁效果的影响。本文还介绍了一种新的清洁系统的设计和性能，该系统依赖于在自由流中激活气泡。该装置利用流中的声激活和在各种基底上的声激活。最后，在流中使用电解产生受控的气泡群，并将其对声输出和清洁性能的影响与不添加气泡的情况进行了比较。这将证明电化学产生的气泡群在扩展清洁实现的空间区域方面可以发挥积极作用。
