Bandgap engineered (tin & carbon co-doped) bismuth titanate nanowires for improved visible-light assisted photocatalytic application
| Autor: | S. Anandan, V. Sai Muthukumar, D. Easwaramoorthy, R. Gowrishankar, R. Saai Harini |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Band gap Materials Science (miscellaneous) Bismuth titanate Nanowire chemistry.chemical_element 02 engineering and technology Management Monitoring Policy and Law 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Pollution 0104 chemical sciences chemistry.chemical_compound chemistry X-ray photoelectron spectroscopy Chemical engineering Photocatalysis Malachite green 0210 nano-technology Tin Waste Management and Disposal Water Science and Technology Visible spectrum |
| Zdroj: | Environmental Nanotechnology, Monitoring & Management. 12:100228 |
| ISSN: | 2215-1532 |
| Popis: | An enhanced visible light photocatalytic performance of band-gap engineered bismuth titanate photocatalyst by tin and carbon (Sn&C) codoping is being reported in the present work. The photocatalyst sample was synthesized by the Pechini route and characterized by powder XRD, micro-Raman, XPS and HR-TEM studies. The photocatalytic performance of co-doped bismuth titanate was evaluated by the degradation of malachite green under the irradiation of natural sunlight. The photocatalytic results showed that Sn&C codoped bismuth titanate degraded the pollutant in 3 h whereas pristine bismuth titanate takes longer irradiation time (>5 h) for the complete degradation of malachite green. The improved visible light photocatalytic performance of Sn&C codoped bismuth titanate can be attributed to the significant decrease in the band gap energy (1.8 eV) relative to the pristine bismuth titanate (3.05 eV) coupled with high porosity, larger surface area and nanowire like morphology. |
| Databáze: | OpenAIRE |
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