Logo image
Exploring bubble oscillation and mass transfer enhancement in acoustic-assisted liquid-liquid extraction with a microfluidic device
Journal article   Open access   Peer reviewed

Exploring bubble oscillation and mass transfer enhancement in acoustic-assisted liquid-liquid extraction with a microfluidic device

Yuliang Xie, Chandraprakash Chindam, Nitesh Nama, Shikuan Yang, Mengqian Lu, Yanhui Zhao, John D Mai, Francesco Costanzo and Tony Jun Huang
Scientific reports, Vol.5(1), pp.12572-12572
07/30/2015
DOI: 10.1038/srep12572
PMCID: PMC4519785
PMID: 26223474
url
https://doi.org/10.1038/srep12572View
Published (Version of record) Open Access

Abstract

We investigated bubble oscillation and its induced enhancement of mass transfer in a liquid-liquid extraction process with an acoustically-driven, bubble-based microfluidic device. The oscillation of individually trapped bubbles, of known sizes, in microchannels was studied at both a fixed frequency, and over a range of frequencies. Resonant frequencies were analytically identified and were found to be in agreement with the experimental observations. The acoustic streaming induced by the bubble oscillation was identified as the cause of this enhanced extraction. Experiments extracting Rhodanmine B from an aqueous phase (DI water) to an organic phase (1-octanol) were performed to determine the relationship between extraction efficiency and applied acoustic power. The enhanced efficiency in mass transport via these acoustic-energy-assisted processes was confirmed by comparisons against a pure diffusion-based process.
Acoustics Algorithms 1-Octanol - chemistry Diffusion Liquid-Liquid Extraction Microfluidic Analytical Techniques - instrumentation Microfluidic Analytical Techniques - methods Rhodamines - chemistry Rhodamines - isolation & purification Water - chemistry

Details

Metrics

Logo image