Synthesis and Enhanced Photocatalytic Activity of Black Porous Zr-doped TiO2 Monoliths
| Autor: | Menghe Yang, Jimin Du, Huiming Wang, Zhanmin Zhang, Imran Shakir, Tianwei Shang, Wenqi Li, Hui Guo, Huijuan Chen, Pianpian Wang, Xiaoling Lu, Shujue Xu |
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| Rok vydání: | 2016 |
| Předmět: |
geography
Anatase geography.geographical_feature_category Materials science Doping 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences law.invention chemistry.chemical_compound chemistry Chemical engineering law Impurity Rhodamine B Photocatalysis General Materials Science Calcination Composite material Monolith 0210 nano-technology Porosity |
| Zdroj: | Nano. 11:1650068 |
| ISSN: | 1793-7094 1793-2920 |
| DOI: | 10.1142/s1793292016500685 |
| Popis: | Black Porous Zr-doped TiO2 monoliths were successfully synthesized by a combined route including sol–gel method with polystyrene spheres as template followed by calcination at high temperature in the presence of oxygen. As-synthesized samples were then treated in hydrogen atmosphere at 500[Formula: see text]C for 6[Formula: see text]h to obtain black Porous Zr-doped TiO2 monoliths. This as-synthesized black porous Zr-doped TiO2 composite showed relatively narrow bandgap compared to the pure anatase phase of TiO2, which may have its origin from the contributions from the Zr impurity and oxygen vacancies. The photocatalytic activity of the black porous Zr-doped TiO2 monolith was examined by carrying out the dye degradation on Rhodamine B under visible irradiation. Our experimental results indicate that black porous 0.9% Zr-doped TiO2 sample exhibits high photocatalytic activity with the photodecomposition of 95.25% under visible irradiation for 120[Formula: see text]min. |
| Databáze: | OpenAIRE |
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