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<p>The continual release of dye-contaminated industrial wastewater has emerged as a severe environmental concern due to its toxicological qualities, chemical stability, and low biodegradability. In this work we synthesized Fe<sub>3</sub>O<sub>4</sub>/LC/CaTiO<sub>3</sub> (FLCAT) nanocomposite by combining peanut shell-derived lignocellulose, Fe<sub>3</sub>O<sub>4</sub>, and CaTiO<sub>3</sub> in a 1:1:1 ratio, for UV-induced photocatalytic degradation of Rhodamine B (RhB). The advanced characterization confirmed the successful fabrication of FLCAT nanophotocatalyst, which exhibited reduced band gap of 3.01&#xa0;eV, crystalline phases, mesoporous structure (18.4 m<sup>2</sup>/g), favorable colloidal stability (− 28.86&#xa0;mV), and super magnetic properties for easy magnetic recovery. Electrochemical analyses demonstrated expanded electroactive surface area and lowered charge transfer resistance. Moreover, the FLCAT nanocomposite had achieved 98.62% photocatalytic degradation of RhB in UV light within 95&#xa0;min at pH 9 under optimized conditions. The photocatalyst maintained over 95% efficiency after five cycles. Radical quenching investigations indicated superoxide radicals and&#xa0;hydroxide ion radicals&#xa0;were primary reactive species for RhB photocatalysis. Synergistic coupling between Fe<sub>3</sub>O<sub>4</sub> and CaTiO<sub>3</sub> facilitated charge carrier separation, whereas LC improved adsorption and interfacial charge transfer.</p>

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Advanced magnetic lignocellulose-CaTiO3 based perovskite nanocomposite for photocatalytic degradation of xanthene dye from wastewater

  • 期刊论文

  • 发表日期：

    2026年7月1日

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  • Rajinder Kaur,
  • Navneet Kaur,
  • Manvinder Kaur,
  • Harvinder Singh Sohal,
  • Ankush Mehta

摘要

The continual release of dye-contaminated industrial wastewater has emerged as a severe environmental concern due to its toxicological qualities, chemical stability, and low biodegradability. In this work we synthesized Fe3O4/LC/CaTiO3 (FLCAT) nanocomposite by combining peanut shell-derived lignocellulose, Fe3O4, and CaTiO3 in a 1:1:1 ratio, for UV-induced photocatalytic degradation of Rhodamine B (RhB). The advanced characterization confirmed the successful fabrication of FLCAT nanophotocatalyst, which exhibited reduced band gap of 3.01 eV, crystalline phases, mesoporous structure (18.4 m2/g), favorable colloidal stability (− 28.86 mV), and super magnetic properties for easy magnetic recovery. Electrochemical analyses demonstrated expanded electroactive surface area and lowered charge transfer resistance. Moreover, the FLCAT nanocomposite had achieved 98.62% photocatalytic degradation of RhB in UV light within 95 min at pH 9 under optimized conditions. The photocatalyst maintained over 95% efficiency after five cycles. Radical quenching investigations indicated superoxide radicals and hydroxide ion radicals were primary reactive species for RhB photocatalysis. Synergistic coupling between Fe3O4 and CaTiO3 facilitated charge carrier separation, whereas LC improved adsorption and interfacial charge transfer.