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Hollow Cu–TiO2/C nanospheres derived from a Ti precursor encapsulated MOF coating for efficient photocatalytic hydrogen evolution

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Abstract

Here we report an effective approach for preparing hollow carbon nanospheres with Cu–TiO2 from a Ti precursor encapsulated surface mounted MOF (SURMOF) coating. Firstly a core–shell structured Cu-based SURMOF HKUST-1 on SiO2 nanospheres (SiO2@HKUST-1) with a thin and homogeneous shell coating has been prepared by a liquid-phase epitaxial layer by layer immersion method. Then the uniform SiO2@HKUST-1 nanospheres were loaded with a Ti precursor Ti(O-ipr)4, followed by calcination at 800 °C; hollow carbon nanospheres with Cu–TiO2 (Cu–TiO2/C) could be obtained after etching SiO2 nanosphere templates. As a result of their unique structure, such hollow, thin, uniform and homogeneous Cu–TiO2/C nanospheres had efficient photocatalytic H2 production and excellent recyclability under simulated sunlight irradiation. The method developed here provides a new approach for the preparation of hollow hybrid carbon nanospheres with various applications.

Graphical abstract: Hollow Cu–TiO2/C nanospheres derived from a Ti precursor encapsulated MOF coating for efficient photocatalytic hydrogen evolution

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Publication details

The article was received on 31 Jan 2018, accepted on 13 Mar 2018 and first published on 14 Mar 2018


Article type: Paper
DOI: 10.1039/C8TA01034J
Citation: J. Mater. Chem. A, 2018, Advance Article
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    Hollow Cu–TiO2/C nanospheres derived from a Ti precursor encapsulated MOF coating for efficient photocatalytic hydrogen evolution

    H. Chen, Z. Gu, S. Mirza, S. Zhang and J. Zhang, J. Mater. Chem. A, 2018, Advance Article , DOI: 10.1039/C8TA01034J

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