Kim, SeonghwanHosseini, Seyedehfateme2024-07-092024-07-092024-07-03Hosseini, S. (2024). MIL-100(Fe)-based composites for photocatalytic dye degradation: harnessing UV and visible light with enhanced performance (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.https://hdl.handle.net/1880/119112This study explores the photocatalytic degradation efficiencies MIL-100(Fe)-Based composites under both UV and visible light. The synthesized ZnO/MIL-100(Fe), ZnO/Ni@MIL photocatalysts were assessed based on their ability to degrade Rhodamine 6G (R6G), a cationic dye. The main aim of integrating MIL-100(Fe) into ZnO nanoparticles is to enhance the surface area of the photocatalyst to improve adsorption and photocatalytic performance, which is crucial for effective dye degradation. Under UV light, ZnO/MIL-100(Fe) exhibited the highest degradation efficiency, achieving complete degradation within 60 minutes. This exceptional performance is attributed to the enhanced adsorption and charge separation and transfer between ZnO and MIL-100(Fe). ZnO/Ni@MIL-100(Fe) followed closely with a 96% degradation efficiency, highlighting the role of Ni nanoparticles in enhancing photocatalytic performance through improved adsorption kinetics and charge carrier dynamics. Under visible light, ZnO/Ni@MIL-100(Fe) demonstrated the highest efficiency, reaching nearly 98% degradation within 60 minutes following by ZnO/MIL-100(Fe) with 88% degradation efficiency. This superior performance is due to the synergistic effects of enhanced light absorption and electron scavenging of Ni nanoparticles. Both synthesized composites exhibit significantly higher efficiency compared to ZnO NPs, MIL-100(Fe), and Ni@MIL-100(Fe). The findings suggest that ZnO/Ni@MIL-100(Fe) is a highly effective photocatalyst under visible light, while ZnO/MIL-100(Fe) excels under UV light. This study underscores the potential of these composites for practical applications in environmental remediation, driven by their enhanced photocatalytic activities and adsorption properties, primarily due to the increased surface area provided by MOFs.enUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.PhotocatalysisDye degradationNanomaterialMaterials Sciencemaster thesis