Synthesis, Characterization, and Thermal Analysis of Silver and Platinum Doped Zinc Oxide Nanoparticles by Eco-Friendly Dry Fine Grind

Abstract:

Zinc oxide (ZnO) has several uses and is one of the most extensively used compounds in industry and science. In order to create ZnO-Ag and Pt-ZnO nanoparticles (NPs), this study used a straightforward, environmentally friendly dry fine-grind method, with 5wt% of Ag/Pt. The morphological features, chemical structures, and thermal degradation of the designed nanocomposite materials were investigated using DEX, TEM, XRD, DSC, and TGA. The EDX confirmed that ZnO-Ag and ZnO-Pt prepared by fine grinding were relatively free of impurities compared to those prepared by other methods. The TEM shows a good distribution and dispersion of both Ag and Pt into ZnO. The XRD patterns show the main ZnO peaks, with the presence of Ag/Pt in the ZnO NPs confirmed by the tiny peak in the (111) crystal plane at a 2θ angle of 38º and 40 ͦ for the Ag and Pt, respectively, and no new peaks, indicating homogeneity between the ZnO and Ag/Pt nanoparticles. In both ZnO-Ag and ZnO-Pt, the DSC curves showed a broad, highly exothermic peak, along with numerous exothermic processes that resulted in mass loss. The TGA results show that the addition of Ag and Pt to ZnO increased its thermal stability, with a proportion similar to that of pristine ZnO at 100 °C. The ZnO exhibits remarkable stability with only a 5 wt.% addition of Ag when compared to pure ZnO, which is very important for improving ZnO for industrial applications using eco-friendly solutions.

• Periodical: Journal of Nano Research (Volume 93)
• Pages: 51-63
• DOI: https://doi.org/10.4028/p-Gqghp6
• Online since: July 2026
• Authors: Haia Aldosari*
• Keywords: DSC, EDX, TEM, TGA, XRD, ZnO-Ag, ZnO-Pt

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