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journal article·2024-11-15Open access

The effect of Pr substitution on the spectrum and photocatalytic performance of MgAl2O4 nanoparticles

Department of Materials Engineering, Huzhou University, Huzhou 313000, P. R. China, Z. J. Yu, J. B. Zhou, Department of Materials Engineering, Huzhou University, Huzhou 313000, P. R. China, M. H. Xu, Department of Materials Engineering, Huzhou University, Huzhou 313000, P. R. China, Y. F. Yang, Department of Materials Engineering, Huzhou University, Huzhou 313000, P. R. China, Y. Y. Wang, Huzhou Key Laboratory of Green Energy Materials and Battery Cascade Utilization, Huzhou College, Huzhou, Zhejiang, 313000, P. R. China

Digest Journal of Nanomaterials and Biostructures· Volume 19· Issue 4
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Abstract

To study the spectral regulation of Pr on MgAl2O4 nanoparticles, different contents of Pr doped MgAlPr ternary hydrotalcite were synthesized by co-precipitation method, and Pr containing mixed metal oxides Pr-x-y was prepared by high-temperature calcination. The Pr had little effect on the morphology of hydrotalcite, but significantly improved the heat resistance. The Pr significantly reduced the Eg values of MgAl-L and its mixed oxide ( Eg=1.68–1.87 eV). After 100 min of irradiation with visible light, the degradation rate of MB reached 87.7%. In the reaction system of Pr-0.05-500/H2O2, h+ played a major role. There was a corresponding relationship between the photocatalytic performance and L* value of mixed oxide nanoparticles based on MgAl-L and Pr-0.05-L. The NIR of hydrotalcite or Pr containing nanoparticles was greatly affected by the calcination temperature and Pr containing, but the values of NIR were more than 50%.
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Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: Layered Double Hydroxides Synthesis and Applications · Advanced Photocatalysis Techniques · Catalytic Processes in Materials Science

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