Discussion of graduation research projects for students in the Chemistry Department
The Chemistry Department at the College of Education for Pure Sciences discussed pioneering graduation research projects for fourth-year students for the 2024-2025 academic year. The students presented their research to the relevant committee and presented the most important findings through a presentation. The conclusion of some of the research projects was an explanation of nanotechnology, a modern technology used in many fields, including agriculture, industry, and medicine. Nanoparticles are synthesized in a variety of ways, with the bio-based method being easy, rapid, inexpensive, and environmentally safe. This reference study examines the latest studies on the bio-manufacturing of metal nanoparticles using plant extracts using chemical precipitation. Onion leaf extract was used to produce nanoparticles of several metals, most importantly selenium and some metal oxides such as tin oxide (SnO2). This resulted in the Se-SnO2/nano-extract nanocomposite. Some applications were studied from the effect of X-ray diffraction and scanning electron microscopy on the catalyst, in addition to studying some factors such as concentration, weight and solvent. Some applications were also studied such as the recycling experiment (removal of dye pollutants from water). The efficiency of the nano-catalytic composite was 94% in the first cycle and 70% after the fourth cycle.
