Synthesis, Characterization of NiO/ZnO Nanocomposite as Photocatalyst for Treatment of Industrial Dye Wastewater
نویسندگان
1 Department of Chemistry, College of Science for Women, University of Babylon, Hilla, Iraq
2 Department of Chemistry, College of Science for Women, University of Babylon, Hilla, Iraq
doi
10.22052/JNS.2025.03.052چکیده
In this article preparation of NiO/ZnO nanocomposite using co-precipitation method, the characteristic of nanocomposite was studied using various techniques such as X-ray diffraction (XRD), Fourier transform infrared (FTIR), Energy dispersive X-ray spectroscopy (EDX), Scanning electron microscopy (SEM), and Thermal gravimetric analysis (TGA), The particle size of synthesized NiO/ZnO nanocomposite was calculated using the Scherer equation (23.769nm). The second part includes the study of the photo catalytic activity of prepared nanocomposite, using an Fast green dye. The rate of the photocatalytic degradation process was affected by different parameters such as the initial concentration of dye, the effect of the mass of catalyst, the initial pH of the solution, and the effect of temperature. The experiments were performed under optimum conditions from (0.15 g / 100 mL) of NiO/ZnO nanocomposite, and (10 mL/min) air flow rate, The best removal percentage of Fast green dye was (94.33%), The effect of dye concentration has been used to study the optimum value of Fast green dye (10mg/L) dye with a pH=8. The activation energy for the photo degradation process calculated using the Arrhenius equation was equal to (31.67 KJ/mol),
