Hollow Cu–TiO2/C nanospheres derived from a Ti precursor encapsulated MOF coating for efficient photocatalytic hydrogen evolution
| Autor: | Shu-Hua Zhang, Salma Mirza, Jian Zhang, Zhi-Gang Gu, Hao Chen |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment Layer by layer chemistry.chemical_element 02 engineering and technology General Chemistry engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Epitaxy 01 natural sciences 0104 chemical sciences law.invention Template chemistry Coating Chemical engineering law Etching (microfabrication) Photocatalysis engineering General Materials Science Calcination 0210 nano-technology Carbon |
| Zdroj: | Journal of Materials Chemistry A. 6:7175-7181 |
| ISSN: | 2050-7496 2050-7488 |
| DOI: | 10.1039/c8ta01034j |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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