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The reverse micelle microemulsion approach was used in the current investigation to synthesise CdTe quantum dots (QDs) at 80–100ºC utilising an AOT/H2O/n-heptane mixture. In order to avoid clumping together when dispersed in aqueous solution, the produced CdTe QDs were capped with thioglycolic acid (MAA) after extraction from microemulsion media. Utilising XRD, Photoluminiscence Spectroscopy and UV-Visible Spectroscopy methods, CdTe QDs were characterised. For CdTe QDs, the bandgap was determined to be 2.05 eV using Tauc's law. Using the Brus equation, the estimated particle sizes for CdTe QDs were 7.65 nm. Studies have been conducted on the impact of various parameters, including the dose of the photocatalyst and the initial concentration of pollutant on the Fampridine degradation process utilising QDs. The maximum Fampridine degradation efficiency onto CdTe QDs was reported to be 89.05% in 160 min under optimal conditions. The first order kinetic model showed a high valve of regression coefficient (R2- 0.96 to 0.99) which emphasized that the experimental data is best fitted.

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Green Synthesis, Characterization and Photocatalytic Activity of CdTe Quantum Dots for the Degradation of Fampridine

  • 会议论文

  • 发表日期：

    2025年

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  • Harwin Sandhu,
  • Sangeeta Garg,
  • Amit D. Saran,
  • Sandeep Singh

摘要

The reverse micelle microemulsion approach was used in the current investigation to synthesise CdTe quantum dots (QDs) at 80–100ºC utilising an AOT/H2O/n-heptane mixture. In order to avoid clumping together when dispersed in aqueous solution, the produced CdTe QDs were capped with thioglycolic acid (MAA) after extraction from microemulsion media. Utilising XRD, Photoluminiscence Spectroscopy and UV-Visible Spectroscopy methods, CdTe QDs were characterised. For CdTe QDs, the bandgap was determined to be 2.05 eV using Tauc's law. Using the Brus equation, the estimated particle sizes for CdTe QDs were 7.65 nm. Studies have been conducted on the impact of various parameters, including the dose of the photocatalyst and the initial concentration of pollutant on the Fampridine degradation process utilising QDs. The maximum Fampridine degradation efficiency onto CdTe QDs was reported to be 89.05% in 160 min under optimal conditions. The first order kinetic model showed a high valve of regression coefficient (R2- 0.96 to 0.99) which emphasized that the experimental data is best fitted.