Enhanced visible light photocatalytic activity of TiO2 co-doped with Fe, Co, and S for degradation of Cango red
| Autor: | Muhammad Imran, Muhammad Pervaiz, Shah Hussain, Hafiz Amir Nadeem, Rabia Ejaz, Umer Younas, Zohaib Saeed, Kashif Mehmood |
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| Rok vydání: | 2021 |
| Předmět: |
Chemistry
02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Concentration ratio Atomic and Molecular Physics and Optics 0104 chemical sciences Analytical Chemistry Catalysis Congo red chemistry.chemical_compound Nano Photocatalysis Degradation (geology) 0210 nano-technology Photodegradation Instrumentation Spectroscopy Nuclear chemistry Visible spectrum |
| Zdroj: | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 255:119644 |
| ISSN: | 1386-1425 |
| DOI: | 10.1016/j.saa.2021.119644 |
| Popis: | The photocatalytic activity of TiO2 was enhanced under visible light when it was co-doped with Fe, Co, and S through the sol-gel method. The resultant nano photocatalysts were characterized by XRD, EDX coupled with SEM, FT-IR, UV–Vis, and UV-DRS. The concentration ratio of precursor salts of Fe and S was kept at 1% each and of Co varied between 0.5% −1.5%. The photodegradation of Congo red was carried out and various factors like the concentration of catalyst, initial concentration of dye, pH, and irradiation time were also investigated to optimize the degradation process. Under optimized degradation conditions, 99.3% of Congo red (30 ppm) was degraded at slightly acidic pH, with 0.14 g of photocatalyst within 70 min of irradiation time. |
| Databáze: | OpenAIRE |
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