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aluminium oxide nanoparticles synthesis is a necessary step to fabricate aluminium oxide fuel cell (Al-OFEC). It can reduce the operating temperature of the cells, as well as increase their energy density. There are several methods to produce aluminium oxide nanoparticles synthesis, including precipitation, solution combustion synthesis, sol-gel, wet chemical, microwave, supercritical water synthesis and hydrolysis. Each method has its own advantages and disadvantages, but the wet chemical method is the most commonly used due to its low cost, environmental friendliness, high purity and good thermal stability.
In this paper, we present an easy method for the synthesis of g-alumina (Al2O3) nanoparticles using formamide and Tween-80 as nonionic surfactants. Formamide and Tween-80 act as an effective precipitating agent and a convenient synthetic template, which control the size, morphology and distribution of the g-alumina particles. FT-IR, XRD, TGA and SEM analyses confirmed that the g-alumina particles are homogeneous in size, with a narrow distribution between 30-50 nm. EDX mapping of the elements also confirmed that the g-alumina is composed of Al and O.
The antibacterial properties of the g-alumina were also investigated by the microscopy method. The g-alumina was found to have strong antibacterial activity against both gram positive and gram negative bacteria. The results suggest that the use of aluminium oxide nanoparticles is a potential alternative to traditional waste treatment methods. This greener recycling procedure can alleviate the problem of waste accumulated in landfills. This will lead to less pollution and benefit society economically through its application as an energy storage material.