Study on fabrication of ZnO@TiO2 nanocomposite for perozone degradation of amoxicillin from aqueous solution
In this study, a simple method for fabrication of a ZnO@TiO2 nanocomposite was developed to degrade amoxicillin (AMX) from aqueous solution by heterogeneous photocatalytic perozone under UV irradiation (O3/H2O2/ZnO@TiO2/UV). ZnO nanoparticles were formed by the sol-gel method. The ZnO-NPs were then...
| Published in: | Vietnam Journal of Science, Technology and Engineering |
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| Main Authors: | , , , , |
| Format: | Article |
| Language: | English |
| Published: |
Vietnam Ministry of Science and Technology
2023-03-01
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| Subjects: | |
| Online Access: | https://vietnamscience.vjst.vn/index.php/vjste/article/view/1116 |
| Summary: | In this study, a simple method for fabrication of a ZnO@TiO2 nanocomposite was developed to degrade amoxicillin (AMX) from aqueous solution by heterogeneous photocatalytic perozone under UV irradiation (O3/H2O2/ZnO@TiO2/UV). ZnO nanoparticles were formed by the sol-gel method. The ZnO-NPs were then composited with commercial TiO2 at modification ratios of 0, 10, 20, 30, 40, and 50% of ZnO-NPs to generate ZnO@TiO2 nanocomposites. The physical-chemical characteristics of ZnO, TiO2, and ZnO@TiO2 at the optimal modification ratio were determined using S BET , SEM, EDX, and XRD analysis. The catalytic activity of ZnO@TiO2 was evaluated by degradation of AMX in an O3/H 2O2/ZnO@TiO2/UV system. The results showed that 10%ZnO@TiO2 exhibited the highest catalytic activity in degradation (in term of COD removal) of AMX with about 80% for 70 min of reaction time. This efficiency was higher than that of both systems using ZnO or TiO2 only by double. This primary finding demonstrates the feasibility of 10%ZnO@TiO2 photocatalysts in perozone systems to degrade persistent organic compounds in practical applications.
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| ISSN: | 2525-2461 2615-9937 |