Issue 16, 2018

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

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

Supplementary files

Article information

Article type
Paper
Submitted
31 Jan 2018
Accepted
13 Mar 2018
First published
14 Mar 2018

J. Mater. Chem. A, 2018,6, 7175-7181

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, 6, 7175 DOI: 10.1039/C8TA01034J

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