Abstract: Nanoscale zinc oxide is a multifunctional nanomaterial extensively utilized across various domains due to its exceptional physicochemical properties. Traditional synthesis methods often face challenges such as high costs, complex procedures, and product instability. The microemulsion synthesis overcomes these issues, offering simplicity, cost-effectiveness, and controllable produce dimensions. Notably, the use of waste soybean oil as an emulsifier in the synthesis process aligns with the principles of green chemistry and sustainable development, highlighting waste material reuse. The nanoscale zinc oxide products were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and chemical analysis. This approach fosters a comprehensive integration of inorganic synthesis, chemical and instrument analysis, aiming to enhance the holistic experimental capabilities of university students.

Key words: Nano zinc oxide, Microemulsion, Waste soybean oil