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E. Garmroudi Nezhad,F. Kermani,Z. Mollaei,M. Mashreghi,J. Vahdati Khakhi,S. Mollazadeh 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.107 No.-
In the present study, the ratio of reducing to oxidizing (F/O) elements as an indicator for maximumoxygen interference during the solution combustion synthesis (SCS) process of ZnO particles was determinedusing simple mathematical calculations. The obtained result was called special point (S.P). Tointerpret the role of S.P in the SCS reactions, ZnO particles were synthesized in the presence of citric acid,hexamine, hydrazine, and urea with various F/O values (0.75, 1, 1.25). The correlations between the S.P,physicochemical properties of the synthesized ZnO powders, and density functional theory (DFT) predictionswere investigated. X-ray diffraction results, band-gap values, oxygen vacancy data, DFT results, andS.P points demonstrated the direct relation of these parameters. According to the S.P idea, it can beaffirmed that the structural defects, particle size, optical band-gap (Eg = 3.06), the color of the products,the magnetic properties (0.2 emu/g), and the antibacterial inhibitory (15.625 mg/mL) of the synthesizedparticles were controlled via the interference of O2 during the synthesis process. In fact, the S.P investigationwas suggested that the reaction rate of the combustion synthesis process could regulate the propertiesof ZnO particles.