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<p>Pure Bi<sub>2</sub>O<sub>3</sub>/CuO (PBCuO) and Fe-doped Bi<sub>2</sub>O<sub>3</sub>/CuO (FBCuO) nanocomposites were synthesized via the hydrothermal process for photocatalytic applications. The structural, morphological, optical, electrical and surface properties are considered using ‎field emission scanning electron microscopy, X-ray diffraction, current-voltage (I-V) ‎measurements, photoluminescence spectroscopy, Brunauer–Emmett–Teller surface area ‎analysis and Raman spectroscopy. ‎The photocatalytic performance of the nanocomposites is assessed by the Rhodamine B degradation under sunlight. The results showed that the PBCuO and FBCuO samples exhibited degradation efficiencies of 85.17% and 93.10%, respectively, with corresponding reaction rate constants of 0.0076 and 0.01&#xa0;min⁻¹ within 110&#xa0;min under sunlight. FBCuO demonstrated superior photocatalytic efficiency due to its reduced crystalline size (31.66&#xa0;nm), mixed morphology, enhanced surface area (88.90 m<sup>2</sup>/g), increased defects, decreased band gap (2.43&#xa0;eV) and improved conductivity. Effect of scavengers on the FBCuO sample is also carried out. These findings suggest the potential application of Fe-doped Bi<sub>2</sub>O<sub>3</sub>/CuO nanocomposites for environmental remediation.</p>

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Hydrothermally Synthesized Fe-Doped Bismuth Oxide/CuO Nanocomposites for Efficient Photocatalytic Degradation of Rhodamine B

  • 期刊论文

  • 发表日期：

    2025年5月2日

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  • Karrar Hassan Thamir,
  • Hussein A. Ahmed,
  • Sarah Z. Al-Ashoor,
  • Prakash Kanjariya,
  • Malatesh Akku,
  • Rishabh Thakur,
  • G. D. Anbarasi Jebaselvi,
  • Satish Choudhury,
  • Maher Ali Rusho,
  • Hamad M. Alkahtani

摘要

Pure Bi2O3/CuO (PBCuO) and Fe-doped Bi2O3/CuO (FBCuO) nanocomposites were synthesized via the hydrothermal process for photocatalytic applications. The structural, morphological, optical, electrical and surface properties are considered using ‎field emission scanning electron microscopy, X-ray diffraction, current-voltage (I-V) ‎measurements, photoluminescence spectroscopy, Brunauer–Emmett–Teller surface area ‎analysis and Raman spectroscopy. ‎The photocatalytic performance of the nanocomposites is assessed by the Rhodamine B degradation under sunlight. The results showed that the PBCuO and FBCuO samples exhibited degradation efficiencies of 85.17% and 93.10%, respectively, with corresponding reaction rate constants of 0.0076 and 0.01 min⁻¹ within 110 min under sunlight. FBCuO demonstrated superior photocatalytic efficiency due to its reduced crystalline size (31.66 nm), mixed morphology, enhanced surface area (88.90 m2/g), increased defects, decreased band gap (2.43 eV) and improved conductivity. Effect of scavengers on the FBCuO sample is also carried out. These findings suggest the potential application of Fe-doped Bi2O3/CuO nanocomposites for environmental remediation.