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    High-Yield Synthesis of Janus Dendritic Mesoporous Silica@Resorcinol-Formaldehyde Nanoparticles: A Competing Growth Mechanism

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    Authors
    Qu, L.
    Hu, H.
    Yu, J.
    Yu, X.
    Liu, Jian
    Xu, Y.
    Zhang, Q.
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Qu, L. and Hu, H. and Yu, J. and Yu, X. and Liu, J. and Xu, Y. and Zhang, Q. 2017. High-Yield Synthesis of Janus Dendritic Mesoporous Silica@Resorcinol-Formaldehyde Nanoparticles: A Competing Growth Mechanism. Langmuir. 33 (21): pp. 5269-5274.
    Source Title
    Langmuir
    DOI
    10.1021/acs.langmuir.7b00838
    ISSN
    0743-7463
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/54634
    Collection
    • Curtin Research Publications
    Abstract

    Recently, Janus nanostructures that possess two or more different surface functions have attracted enormous attention because of their unique structures and promising applications in diverse fields. In this work, we present that Janus structured dendritic mesoporous silica@resorcinol-formaldehyde (DMS@RF) nanoparticles can be prepared through a simple one-pot colloidal method. The Janus DMS@RF nanoparticle shows a bonsai-like morphology which consists of a dendritic mesoporous silica part and a spherical RF part. After a systematic study on the growth process, we proposed a competing growth mechanism that accounts for the formation of Janus nanostructures. It is believed that suitable polymerization rate of silica and RF resin is critical. Based on the competing growth mechanism, eccentric and concentric core-shell nanostructures have been successfully prepared by tuning the polymerization rates of silica and RF, respectively. Metal-contained ternary Janus nanoparticles that might be used for catalysis have also been prepared. This research may pave the way for the practical applications of delicate nanomaterials with desired structures and properties.

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