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Journal Article

Site-Selective TiO2 Coating on Asymmetric Patchy Particles

MPS-Authors

Mane ,  Gurudas
Research Group Marlow, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Akilavasan,  Jeganathan
Research Group Marlow, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Passas-Lagos,  Emmanouil
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Marlow,  Frank
Research Group Marlow, Max-Planck-Institut für Kohlenforschung, Max Planck Society;
Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 47057 Duisburg, Germany;

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Citation

Mane, G., Akilavasan, J., Passas-Lagos, E., & Marlow, F. (2017). Site-Selective TiO2 Coating on Asymmetric Patchy Particles. Langmuir, 33(40), 10561-10567. doi:10.1021/acs.langmuir.7b02001.


Cite as: https://hdl.handle.net/21.11116/0000-0000-DF93-F
Abstract
The successful fabrication of TiO2-faced asymmetric patchy particles consisting of polystyrene and a Fe3O4/SiO2/TiO2 part is described. Such particles can be of large interest for photochemistry. The used site-selective coating approach demonstrates a modification strategy for a special patchy particle family which may have a general character. The stability of the coating has been tested under several conditions with no sign of disruption. The influence of the prepared asymmetric particles on oil/water phase mixing behavior was tested and turned out to be very diverse. Oils with low polarity (e.g., hexadecane, cyclohexane, octadecane) can form Pickering emulsions by the help of these particles; oils with high polarity (e.g., 1-octanol) form monodisperse macrodroplet systems with unusual stability.