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<p>Yttrium-substituted cobalt ferrite material (CoY<sub>0.1</sub>Fe<sub>1.9</sub>O<sub>4</sub>) was successfully synthesized using the coprecipitation method with variations of synthesis temperature (65&#xa0;°C, 75&#xa0;°C, 85&#xa0;°C, and 95&#xa0;°C). X-Ray Diffraction results (XRD) show that all samples have a face-centered cubic structure with a space group of Fd-3&#xa0;m. The crystallite size of CoY<sub>0.1</sub>Fe<sub>1.9</sub>O<sub>4</sub> increased with increasing synthesis temperature from19.68 to 22.41&#xa0;nm. The average grain size of CoY<sub>0.1</sub>Fe<sub>1.9</sub>O<sub>4</sub> is ranging from 34.73 to 45.63&#xa0;nm. The Fourier Transform Infrared (FTIR) results obtained an absorption band of 400– 600&#xa0;cm<sup>−1</sup>, indicating the presence of a spinel ferrite structure. The FTIR analysis showed metal oxide bonding groups on the tetrahedral and octahedral sites. The Vibrating Sample Magnetometer (VSM) characterization shows the synthesis temperature modifies saturation magnetization (M<sub>S</sub>) in the range of 37.63 to 54.711&#xa0;emu/g. Yttrium–substituted cobalt ferrite nanoparticles can be used as dye removal agents of Congo Red as a pollutant model, owing to the degradation magnitude of 97.30% with nanoparticles synthesized at a temperature of 95&#xa0;°C.</p>

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Effect of synthesis temperature on structural, magnetic, and dye removal properties in coprecipitated yttrium-tuned cobalt ferrite nanoparticles

  • 期刊论文

  • 发表日期：

    2025年9月4日

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  • Devani Marentina,
  • Nurdiyantoro Putra Prasetya,
  • Utari,
  • Riyatun,
  • Suharno,
  • Abdul Muizz Tri Pradipto,
  • Tasrief Surungan,
  • Budi Purnama

摘要

Yttrium-substituted cobalt ferrite material (CoY0.1Fe1.9O4) was successfully synthesized using the coprecipitation method with variations of synthesis temperature (65 °C, 75 °C, 85 °C, and 95 °C). X-Ray Diffraction results (XRD) show that all samples have a face-centered cubic structure with a space group of Fd-3 m. The crystallite size of CoY0.1Fe1.9O4 increased with increasing synthesis temperature from19.68 to 22.41 nm. The average grain size of CoY0.1Fe1.9O4 is ranging from 34.73 to 45.63 nm. The Fourier Transform Infrared (FTIR) results obtained an absorption band of 400– 600 cm−1, indicating the presence of a spinel ferrite structure. The FTIR analysis showed metal oxide bonding groups on the tetrahedral and octahedral sites. The Vibrating Sample Magnetometer (VSM) characterization shows the synthesis temperature modifies saturation magnetization (MS) in the range of 37.63 to 54.711 emu/g. Yttrium–substituted cobalt ferrite nanoparticles can be used as dye removal agents of Congo Red as a pollutant model, owing to the degradation magnitude of 97.30% with nanoparticles synthesized at a temperature of 95 °C.