Department of Chemistry
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Item Synthesis and Characterization of Graphene Oxide and Metal Oxide Modified MOF Composite for Photocatalytic Degradation of Dye Contaminants in Wastewater(Library Information Services COMSATS University Islamabad Lahore Campus, 2023-02-27) Zahra Arshad; SP22-R06-026; Dr. Muhammad Shahid Nazir; LHR TP 8664Dyes are synthetic organic compounds that are abundantly used in textile industries and major contributors towards environmental pollution. Their hazardous nature raises great concerns in the economy. A lot of research has been reported for photocatalyst to mitigate the dyes burden on environment. Graphene Oxide (GO) has been reported as excellent photocatalyst. In this study, novel modification of GO has been reported by modifying efficient materials like magnetic nanoparticles, Metal Organic Frameworks (MOFs) and Titanium dioxide (TiO2, anatase) onto GO by simple hydrothermal method. Degradation of methylene blue, Congo red and methyl orange dye was reported by adding each GO modified composite. TiO2 doped Magnetic GO-MIL-100(Fe) composite being excellent photocatalyst, degraded Congo Red dye, Methylene Blue dye and Methyl Orange dye. In all these composites, MOFs retain their structure in addition to improving photocatalytic activity.Item Synthesis and Characterization of COF based Nanocomposites as Photocatalyst(Library Information Services COMSATS University Islamabad Lahore Campus, 2023-02-27) Talha Rafi; FA21-R06-027; Dr. Muhammad Shahid Nazir; LHR TP 8457Dyes are synthetic organic compounds that are abundantly used in industries. The use of these dyes is major contributors towards environmental pollution. Their hazardous nature raises great concerns in general public. Advancement in nanotechnology can efficiently help in mitigating this problem as nanoparticles can efficiently convert these harmful dyes into less harmful chemical byproducts through a process called Photocatalysis. COF has been reported as photocatalyst with less stability and efficiency. In this paper, new modification of COF-LZU-1 was reported by dopping Cu, Zn, Fe and Ag metals into COF-LZU-1 nanoparticles by simple solvothermal method. Degradation of 40ppm methylene blue and congo red dye was reported by adding 2mg of each metal modified COF-LZU-1. Cu being and excellent photocatalyst with smallest bend gap of 2.1eV, degraded Congo Red dye (95.7%) and Methylene Blue dye (80%). All these metals do not change actual structure of COF-LZU-1 but enhanced photocatalytic activity of COF-LZU-1.Item Synthesis and Characterization of COF based Nanocomposites as Photocatalyst(Library Information Services COMSATS University Islamabad Lahore Campus, 2023-02-26) Talha Rafi; FA21-R06-027; Dr. Muhammad Shahid Nazir; LHR TP 8457Dyes are synthetic organic compounds that are abundantly used in industries. The use of these dyes is major contributors towards environmental pollution. Their hazardous nature raises great concerns in general public. Advancement in nanotechnology can efficiently help in mitigating this problem as nanoparticles can efficiently convert these harmful dyes into less harmful chemical byproducts through a process called Photocatalysis. COF has been reported as photocatalyst with less stability and efficiency. In this paper, new modification of COF-LZU-1 was reported by dopping Cu, Zn, Fe and Ag metals into COF-LZU-1 nanoparticles by simple solvothermal method. Degradation of 40ppm methylene blue and congo red dye was reported by adding 2mg of each metal modified COF-LZU-1. Cu being and excellent photocatalyst with smallest bend gap of 2.1eV, degraded Congo Red dye (95.7%) and Methylene Blue dye (80%). All these metals do not change actual structure of COF-LZU-1 but enhanced photocatalytic activity of COF-LZU-1.