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<p>Ferrites have been extensively applied in degradation of pollutants and many strategies have been utilized to enhance their catalytic efficiency among which metal doping is prominent. Inspired by this we synthesized nickel doped zinc ferrites nanocubes through ball milling of Fe<sub>2</sub>O<sub>3</sub>, ZnO, and NiO nanoparticles. XRD, SEM, VSM, FTIR, and UV-Vis spectroscopy were used to characterize the material which confirmed synthesis of NiZnFe<sub>2</sub>O<sub>4</sub> nanoparticles with cubic spinel structure and crystallite size of 33&#xa0;nm, size in the range of 57–757&#xa0;nm and band gap was 2.5&#xa0;eV. The photocatalytic activity was evaluated using degradation of malachite green and crystal violet under solar light in presence of small amount of hydrogen peroxide. Catalyst loading, dye concentration, and temperature were investigated. The rate of catalysis increased with increasing catalyst dosage and rise in temperature. Using 1&#xa0;mg/mL of the catalyst, both MG (60&#xa0;mg/L) and CV (80&#xa0;mg/L), were completely degraded in just 50 and 40&#xa0;min, respectively. Due to the magnetic nature the catalyst was easily recovered, and reused.</p>

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Synthesis of spinel ferrite nanocubes for the photocatalytic degradation of cationic dyes

  • 期刊论文

  • 发表日期：

    2026年7月27日

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  • Zia Ur Rahman,
  • Hira Nayab,
  • Shakir Khan,
  • Abdur Rauf,
  • Muhammad Shafique,
  • Yahya S. Al-Awthan,
  • Omar S. Bahattab,
  • Asia Ahmad

摘要

Ferrites have been extensively applied in degradation of pollutants and many strategies have been utilized to enhance their catalytic efficiency among which metal doping is prominent. Inspired by this we synthesized nickel doped zinc ferrites nanocubes through ball milling of Fe2O3, ZnO, and NiO nanoparticles. XRD, SEM, VSM, FTIR, and UV-Vis spectroscopy were used to characterize the material which confirmed synthesis of NiZnFe2O4 nanoparticles with cubic spinel structure and crystallite size of 33 nm, size in the range of 57–757 nm and band gap was 2.5 eV. The photocatalytic activity was evaluated using degradation of malachite green and crystal violet under solar light in presence of small amount of hydrogen peroxide. Catalyst loading, dye concentration, and temperature were investigated. The rate of catalysis increased with increasing catalyst dosage and rise in temperature. Using 1 mg/mL of the catalyst, both MG (60 mg/L) and CV (80 mg/L), were completely degraded in just 50 and 40 min, respectively. Due to the magnetic nature the catalyst was easily recovered, and reused.