Preparation and characterization of Bi-doped TiO2 and its solar photocatalytic activity for the degradation of isoproturon herbicide
| Autor: | Police Anil Kumar Reddy, Basavaraju Srinivas, Pruthu Kala, Valluri Durga Kumari, Machiraju Subrahmanyam |
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| Rok vydání: | 2011 |
| Předmět: |
Thermogravimetric analysis
Materials science Photoluminescence Mechanical Engineering Analytical chemistry Condensed Matter Physics Electron spectroscopy X-ray photoelectron spectroscopy Mechanics of Materials Transmission electron microscopy Photocatalysis General Materials Science Sol-gel BET theory |
| Zdroj: | Materials Research Bulletin. 46:1766-1771 |
| ISSN: | 0025-5408 |
| DOI: | 10.1016/j.materresbull.2011.08.006 |
| Popis: | Bi-doped TiO 2 catalyst was prepared by sol–gel method and was characterized by thermo gravimetric analysis (TGA), X-ray diffraction spectra (XRD), X-ray photo electronic spectroscopy (XPS), UV–Vis diffused reflectance spectra (DRS), photoluminescence spectra (PLS), transmission electron microscopy (TEM), energy dispersive analysis of X-rays (EDAX) and BET surface area. The photocatalytic activity of the catalysts were evaluated for the degradation of isoproturon herbicide under solar light irradiation. The UV–Visible DRS of Bi-doped TiO 2 showed red shift in optical absorption. The presence of Bi 3+ δ + species are playing a vital role in minimizing the electron hole recombination resulting higher activity compared to bare TiO 2 . |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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