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Effects of Cobalt Doping on the Microstructure and Optical Properties of ZnAl2O4 Nanoparticles

  • Physical Chemistry of Nanoclusters and Nanomaterials
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Abstract

Co-doped ZnAl2O4 nanoparticles were prepared by hydrothermal method. The samples were characterized by XRD, HRTEM, EDX, FT-IR, XPS, PL, and UV–Vis, and the effects of cobalt doping on the microstructure and optical property of the samples were studied. The experimental results showed that Co-doped ZnAl2O4 nanoparticles synthesized by this method are single phase with cubic crystal structure, no other impurity phases were observed. Furthermore, with increasing the Co2+ concentration, the average crystallite size of the Co-doped samples became smaller. The absorption bands in FT-IR spectra are broadened in the low frequency region, the PL spectra had the red-shift and the UV–Vis peaks intensity gradually enhanced.

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Correspondence to Zhiqiang Wei.

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Wu, X., Wei, Z., Chen, X. et al. Effects of Cobalt Doping on the Microstructure and Optical Properties of ZnAl2O4 Nanoparticles. Russ. J. Phys. Chem. 91, 2651–2656 (2017). https://doi.org/10.1134/S0036024417130283

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  • DOI: https://doi.org/10.1134/S0036024417130283

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