Synthesis of SrTiO3–TiN Nanocomposites with Enhanced Photocatalytic Activity under Simulated Solar Irradiation
| Autor: | Fang Liu, Kang Chunli, Tao Tian, Xiao Kunkun, Huang Dongmei, Zhu Ling, Wang Yuhan |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Nanocomposite Diffuse reflectance infrared fourier transform General Chemical Engineering chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Industrial and Manufacturing Engineering 0104 chemical sciences law.invention Adsorption X-ray photoelectron spectroscopy Chemical engineering chemistry law Selective adsorption Photocatalysis Calcination 0210 nano-technology Tin |
| Zdroj: | Industrial & Engineering Chemistry Research. 57:11526-11534 |
| ISSN: | 1520-5045 0888-5885 |
| DOI: | 10.1021/acs.iecr.8b01203 |
| Popis: | In this paper, SrTiO3 and TiN-decorated SrTiO3 nanocomposites were successfully prepared via a moderate hydrothermal and calcination process. The resulting SrTiO3–TiN nanocomposites are characterized by X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy. UV–visible diffuse reflectance spectroscopy is used to investigate the optical properties and the results demonstrate the extension of spectral responses from ultraviolet to visible-light region. Compared to pure SrTiO3, SrTiO3–TiN composites reveal obvious enhancement in adsorption and photocatalytic ability. STON samples with TiN-decorated 6 wt % and calcination temperature 250 °C, 30 min exhibited highest photocatalytic activity, which could remove 72% of MB within 150 min. This work indicates that other photocatalytic nanocomposites could be exploited by this composite method and TiN may be one kind of materials used for photocatalyts to enlarge their response range of solar light and selective adsorption of diffe... |
| Databáze: | OpenAIRE |
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