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Surface Potential of MIBC at Air/Water Interface: a Molecular Dynamics Study

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Open access
Authors
Phan, Chi
Nakahara, H.
Shibata, O.
Moroi, Y.
Nguyen, Van Cuong
Chaudhary, Deeptangshu
Date
2012
Type
Conference Paper

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Phan, C. and Nakahara, H. and Shibata, O. and Moroi, Y. and Nguyen, V.C. and Chaudhary, D. 2012. Surface Potential of MIBC at Air/Water Interface: a Molecular Dynamics Study, in 6th International Symposium on Surface Science: Towards Nano, Bio and Green Innovation, Dec 11-15 2011, pp. 437-440. Japan: The Surface Science Society of Japan.
Source Title
e-Journal of Surface Science and Nanotechnology
Source Conference
6th International Symposium on Surface Science: Towards Nano, Bio and Green Innovation
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Department of Chemical Engineering
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This open access article is distributed under the Creative Commons license http://creativecommons.org/licenses/by/4.0/

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Abstract

The interfacial behavior of alcohols is significantly different from bulk due to amphiphilic structures. Such behavior can dramatically change the interfacial properties within the nano-scale of interfacial layer and have significant applications in industrial processes such as mineral flotation. In this study, the adsorption of MIBC (methyl isobutyl carbinol), a popular frother, was investigated by molecular dynamics. Surface potential was obtained at different surface concentration and compared to experimental data. The simulations results compared well with theoretical data using a single adjustable parameter. It has been found that the disordered water molecules contribute to surface potential more than MIBC molecules. The study demonstrates the application of MD in investigating the efficiency of frother systems.