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<p>The multifunctional properties, including optical, complex impedance, and photocatalytic performance of Dy<sub>0.5</sub>Er<sub>0.5</sub>CrO<sub>3</sub> (DECO) compound fabricated <i>via</i> the sol-gel method have been thoroughly investigated. The optical study revealed an optical bandgap energy of 2.67 eV, indicating its potential for solar-light-driven photocatalytic degradation of harmful organic dyes. The AC-conductivity was investigated as a function of frequency and temperature. Its frequency dependence was found to follow Jonscher’s power law. The temperature-dependent <i>ac</i>-conductivity was explained by two models: the non-overlapping small polaron tunneling (NSPT) model and the correlated barrier hopping (CBH) model. The impedance data analysis revealed a non-Debye type relaxation. The prepared material in this study demonstrated degradation efficiencies of 57% for Methylene Blue (MB) dye and 70% for Rhodamine B (RhB) dye. Notably, the degradation rate for RhB dye was found to be 54% higher than that of MB dye. Better optical, dielectric, and photocatalytic properties make this material useful for multifunctional applications.</p> Graphical Abstract <p></p>

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Exploring multifunctionality: optical, impedance, and photocatalytic properties of Dy0.5Er0.5CrO3 nanomaterial synthesized via sol-gel method

  • 期刊论文

  • 发表日期：

    2025年7月2日

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  • Manjeet Rani,
  • Kuldeep Singh,
  • Amrita Kumari,
  • Meena Laad,
  • Venkata Sreenivas Puli,
  • Neeraj Panwar

摘要

The multifunctional properties, including optical, complex impedance, and photocatalytic performance of Dy0.5Er0.5CrO3 (DECO) compound fabricated via the sol-gel method have been thoroughly investigated. The optical study revealed an optical bandgap energy of 2.67 eV, indicating its potential for solar-light-driven photocatalytic degradation of harmful organic dyes. The AC-conductivity was investigated as a function of frequency and temperature. Its frequency dependence was found to follow Jonscher’s power law. The temperature-dependent ac-conductivity was explained by two models: the non-overlapping small polaron tunneling (NSPT) model and the correlated barrier hopping (CBH) model. The impedance data analysis revealed a non-Debye type relaxation. The prepared material in this study demonstrated degradation efficiencies of 57% for Methylene Blue (MB) dye and 70% for Rhodamine B (RhB) dye. Notably, the degradation rate for RhB dye was found to be 54% higher than that of MB dye. Better optical, dielectric, and photocatalytic properties make this material useful for multifunctional applications.

Graphical Abstract