Solvothermally grown BiOCl catalyst for photodegradation of cationic dye and fluoroquinolone-based antibiotics
| Autor: | Teerapong Narenuch, Teeradech Senasu, Suwat Nanan, Tammanoon Chankhanittha, Kwanwiorn Wannakam |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Photoluminescence Band gap Cationic polymerization Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Catalysis chemistry.chemical_compound Reaction rate constant chemistry 0103 physical sciences Photocatalysis Rhodamine B Electrical and Electronic Engineering Photodegradation Nuclear chemistry |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 31:9685-9694 |
| ISSN: | 1573-482X 0957-4522 |
| DOI: | 10.1007/s10854-020-03514-4 |
| Popis: | A BiOCl catalyst was prepared via a green solvothermal method without using any surfactant or capping agent. The prepared BiOCl showed a uniform spherical morphology of about 60 nm with an energy band gap of 3.58 eV. Photoluminescence (PL) spectrum of BiOCl (λexcitation = 310 nm) showed the first excitonic peak (near band edge emission peak) at 348 nm indicating the highly crystalline nature of the synthesized catalyst. The BiOCl photocatalyst showed the tetragonal crystal structure with the enhanced photocatalytic performance of 99% toward degradation of Rhodamine B (RhB) dye and three antibiotics, namely, ofloxacin (OFL), norfloxacin (NOR), and ciprofloxacin (CIP) under UV light irradiation. The photocatalytic degradation reaction of each pollutant follows the first-order kinetics with a high rate constant of about 0.0336 min−1. Both electron and hole are the main reactive species involved in degradation of the pollutants. The prepared BiOCl retains its photocatalytic performance even after five cycles of use. The BiOCl catalyst has a high potential for photodegradation of cationic dye and fluoroquinolone antibiotics present in wastewater. |
| Databáze: | OpenAIRE |
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