Visible light-induced degradation of phenolic compounds by Sudan black dye sensitized TiO2 nanoparticles as an advanced photocatalytic material
| Autor: | Elnaz Safaralizadeh, Simin Janitabar Darzi, Ali Reza Mahjoub, Reza Abazari |
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| Rok vydání: | 2016 |
| Předmět: |
Chemistry
Band gap 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Photocatalysis Organic chemistry Sudan black Degradation (geology) Phenol Sudan Black B 0210 nano-technology Visible spectrum Nuclear chemistry BET theory |
| Zdroj: | Research on Chemical Intermediates. 43:1197-1209 |
| ISSN: | 1568-5675 0922-6168 |
| DOI: | 10.1007/s11164-016-2692-7 |
| Popis: | Using a simple impregnation process, the present study has introduced a novel route for the photosensitization of TiO2 nanoparticles using Sudan black B dye as a sensitizer. DRS, XRD, FE-SEM, BET, UV–Vis, FT-IR and TGA–DSC analyses were considered for characterization of the synthesized purple powder as a visible light photocatalyst for removal of the phenolic pollutant. The band gap of the dye-sensitized TiO2 and corresponding BET surface area were 2.9 eV and 50.0 m2 g−1, respectively. Based on the results, Sudan Black sensitized TiO2 photocatalyst outperforms the pure commercial TiO2 (Degussa P25) in terms of phenol degradation under visible light. Under a 100-min photo-catalytic experiment, dye-sensitized TiO2 removed 96 % of the phenol content. The Sudan black B dye-sensitized TiO2 is expected to show further interesting physical characteristics related to potential uses. |
| Databáze: | OpenAIRE |
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