| Autor: |
Nguyen Thi Cam Tien, Chau Hong Nhut, Vo Thi Thanh Thuy, Trinh Thi Bich Huyen, Lam Pham Thanh Hien, Nguyen Nhat Huy |
| Jazyk: |
English<br />Indonesian |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Bulletin of Chemical Reaction Engineering & Catalysis, Vol 17, Iss 3, Pp 486-496 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
1978-2993 |
| DOI: |
10.9767/bcrec.17.3.13970.486-496 |
| Popis: |
In this study, the pure and calcined forms of Degussa TiO2 were applied for photocatalytic removal of doxycycline - a broad-spectrum tetracycline antibiotic. The calcination of TiO2 at 500 °C enhanced the photocatalytic efficiency of the TiO2 under optimal operational conditions of 5 ppm of doxycycline, 0.25 g/L of TiO2, pH 6.5, 120 min, and room temperature. In addition, the changes in morphology, crystal structure, and optical properties of the materials before and after calcination were observed by scanning electron microscopy, X-ray diffraction, and UV-Visible spectroscopy. The reaction kinetics of the doxycycline removal was also investigated based on the Langmuir-Hinshelwood model with a correlation coefficient R2 of >80%. Results showed that the photocatalytic ability of TiO2 is stable and enhanced after being calcined at a suitable temperature of 500 °C. This opens up the potential application of TiO2 in the treatment of emerging organic pollutants in water. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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