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Research Article

Decoratable hybrid-film-patch stabilized Pickering emulsions and their catalytic applications

Shenghua MaYinan WangKunpeng JiangXiaojun Han( )
State Key Laboratory of Urban Water Resource and EnvironmentSchool of Chemical Engineering and TechnologyHarbin Institute of TechnologyHarbin150001China
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Abstract

We demonstrated a method to fabricate functional hybrid film patches that were used to form Pickering emulsions (PEs). The hybrid patches were made of carbon nanotubes, Fe3O4 nanoparticles, octadecyltrimethoxysilane, and poly(diallyldimethylammonium chloride). The aqueous phase of the hybrid-patch stabilized PEs can be easily separated by applying a magnetic field. The hybrid-film-patch stabilized PEs are extremely stable and lasted for eight months at room temperature. Furthermore, they are easily ruptured by adding ethanol, and regenerated by vortexing the patches in aqueous/oil mixtures, enabling the inner hydrophilic side of the patches to be easily modified with metal nanoparticles. As an example, palladium nanoparticles were embedded into the surface of the hybrid patches using an in situ reduction method. The Pd functionalized patch formed PEs showed an excellent catalytic performance for the hydrogenation of acetone with a yield of 99.5%. The same batch of Pd functionalized patches was recycled 13 times without loss of the catalytic activity. The hybrid-patch formed PEs have a great potential in the catalytic field.

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Nano Research
Pages 2603-2610
Cite this article:
Ma S, Wang Y, Jiang K, et al. Decoratable hybrid-film-patch stabilized Pickering emulsions and their catalytic applications. Nano Research, 2015, 8(8): 2603-2610. https://doi.org/10.1007/s12274-015-0765-3

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Received: 20 December 2014
Revised: 02 March 2015
Accepted: 05 March 2015
Published: 29 August 2015
© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2015
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