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The consequence of Mg and Mn doping on the structure, photoluminescence, morphology, and photocatalytic performance properties of t,m-ZrO2 nanoparticles fabricated by the co-precipitation method

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Abstract

In this research, pristine and co (Mg, Mn)-doped ZrO2 products were successfully synthesized by the chemical co-precipitation route. The diffraction patterns of the pure ZrO2 affirmed the formation of the tetragonal phase. Dopant (Mg, Mn) induced phase change from the tetragonal to the monoclinic structure. UV–Vis absorbance spectrum revealed considerable tuning of energy gap from 2.99 to 2.65 eV with Mg, Mn doping due to surface defects. The co (Mg, Mn)-doped ZrO2 products showed important photocatalytic activity performance when irradiated with sunlight. The excellent photocatalytic efficiency, 94 and 96%, for both (MV and MB) dye substances degradation, was attained through Mg (0.08 M)- and Mn (0.08 M)-doped ZrO2 catalyst under sunlight illumination time of 70 min. The photodegradation was additionally confirmed by scavenger study and COD analysis. The reusing catalytic capability of the Mg (0.08 M)- and Mn (0.08 M)-doped ZrO2 product was also assessed with a slight diminish in the removal efficiency even after the six successive runs.

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Acknowledgements

We thank Prof. SP. Meenakshisundaram, Former chairman, Principle investigator DST- SERB, Department of Chemistry, Annamalai University, for recording UV-DRS.

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Correspondence to P. Senthil Kumar.

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Rajesh, G., Akilandeswari, S., Kumar, P.S. et al. The consequence of Mg and Mn doping on the structure, photoluminescence, morphology, and photocatalytic performance properties of t,m-ZrO2 nanoparticles fabricated by the co-precipitation method. Appl Nanosci 13, 3839–3851 (2023). https://doi.org/10.1007/s13204-022-02579-3

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  • DOI: https://doi.org/10.1007/s13204-022-02579-3

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