DEVELOPMENT OF BISMUTH OXIDE BROMIDE-BASED CATALYST FOR THE DEGRADATION OF SULFAMETHOXAZOLE (SMX) PHARMACEUTICAL WASTE USING PHOTOCATALYTIC TECHNOLOGY
<p align="justify">"The use of antibiotics in human and animal treatment has led to their widespread presence in aquatic environments, resulting in emerging pollution issues due to rapid antimicrobial resistance. Sulfamethoxazole (SMX) is one of the most frequently detected anti...
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| Format: | Theses |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/75961 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | <p align="justify">"The use of antibiotics in human and animal treatment has led to their widespread presence in aquatic environments, resulting in emerging pollution issues due to rapid antimicrobial resistance. Sulfamethoxazole (SMX) is one of the most frequently detected antibiotics in water bodies worldwide. The persistence and toxicity of this antibiotic make conventional degradation methods in wastewater treatment nearly impossible. The application of photocatalytic processes offers a promising solution for SMX degradation. This technology is highly efficient, sustainable, energy-saving, and environmentally friendly. The development and modification of BiOBr photocatalysts have been investigated to determine their photocatalytic activity. In this study, in-situ doping of Bi with transition metals was performed for modification. Additionally, the effect of adding surfactant TEOA on the structure, characteristics, and SMX degradation efficiency was also examined.
The synthesis of BiOBr photocatalysts doped with Bi in this study was carried out using a hydrothermal method with variations in hydrothermal temperature and the addition of TEOA surfactant during synthesis. Characterization results revealed the formation of tetragonal BiOBr phase and the presence of Bi metal in the synthesized photocatalysts, showing responsive bandgap characteristics under visible light irradiation. The synthesized Bi/BiOBr photocatalyst achieved 100% SMX degradation within 4 hours under Xenon 300 W lamp irradiation. The addition of TEOA surfactant also improved the photocatalyst performance, as evidenced by the increase in the apparent rate constant value of the synthesized Bi/BiOBr photocatalyst."
Keywords: Photocatalytic Degradation, Sulfamethoxazole (SMX), Bi/BiOBr, Visible Light, TEOA |
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