A newly green photocatalyst support for azo dye remediation under UV light irradiation
| Autor: | Aynur Babagil, Asghar Lesani, Seyedeh Sara Soleimani, Hayrunnisa Nadaroglu |
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| Rok vydání: | 2018 |
| Předmět: |
Titanium (IV) oxide NPs
Materials science Corn silk Scanning electron microscope Composite number Nanoparticle UV photodegradation 02 engineering and technology 010402 general chemistry 01 natural sciences Catalysis chemistry.chemical_compound lcsh:Water supply for domestic and industrial purposes Water Science and Technology lcsh:TD201-500 021001 nanoscience & nanotechnology 0104 chemical sciences Textile dye chemistry Titanium dioxide Photocatalysis Surface modification Reactive Black 5 0210 nano-technology Nuclear chemistry |
| Zdroj: | Applied Water Science, Vol 8, Iss 4, Pp 1-8 (2018) |
| ISSN: | 2190-5495 2190-5487 |
| DOI: | 10.1007/s13201-018-0752-4 |
| Popis: | A new cellulosic material “corn silk” was modified with titanium dioxide nanoparticles as a novel photocatalyst support. In this study, the prepared support was tested for the removal of Reactive Black 5 (RB5) as an azo dye pollutant candidate from synthetic samples. High capability of decolorization (> 99%) was achieved after 30 s using the corn silk/TiO2 photo-biocatalyst. The effect of important parameters such as pH of the medium, the amount of photocatalyst, mixing rate and dye concentration was investigated and modified. UV–Vis spectroscopy, scanning electron microscopy (SEM), X-ray powder diffraction and Fourier-transform IR spectrometry were applied to characterize the effect of functionalization, structure, surface morphology and photocatalyst properties of the support and mineralization of pollutants. It was observed that the maximum decolorization of RB5 occurred at pH 3.0, 25 °C, 300 rpm, 30 s using the corn silk/TiO2 composite material for this study. The results reveal that corn silk/TiO2 composite has high and significant photocatalytic activity. |
| Databáze: | OpenAIRE |
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