Journal article

Growth of Bubbles by Rectified Diffusion in Aqueous Surfactant Solutions

Thomas Leong, Shuhui Wu, Sandra Kentish, Muthupandian Ashokkumar

Journal of Physical Chemistry C | AMER CHEMICAL SOC | Published : 2010


Bubbles grow by the rectified diffusion process in an acoustic field. While there is a thorough understanding of this process for the air-water system, only limited experimental data is available in the literature for aqueous solutions containing surfactants. In order to expand the experimental database, we have determined the bubble growth rate by the rectified diffusion process in aqueous solutions containing sodium dodecyl sulfate (SDS) at various concentrations. Compared to water, the growth rate is higher in SDS solutions. The addition of 0.1 M sodium chloride to SDS results in a further enhanced growth rate at lower bulk concentrations of the surfactant. These results suggest that the ..

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Awarded by Australian Research Council

Funding Acknowledgements

The work is financially supported by a grant from the Australian Research Council (DP0771094) and this support is gratefully acknowledged. Access to the infrastructure provided by the Particulate Fluids Processing Centre, a Special Research Centre of the Australian Research Council, is further acknowledged.