Szczegóły publikacji
Opis bibliograficzny
Photocatalytic efficiency of nickel-doped copper ferrite in organic dye decomposition / Julia Mazurenko, Larysa Kaykan, Sijo A. K., Antoni ŻYWCZAK, Mateusz MARZEC, Liliia Turovska, Katarina Hreus // Nano-Structures and Nano-Objects ; ISSN 2352-507X . — 2026 — vol. 45 art. no. 101603, s. 1–17. — Bibliogr. s. 15–17, Abstr. — Publikacja dostępna online od: 2025-12-23. — A. Żywczak - dod. afiliacja: Department of Mechanical Engineering, Faculty of Science and Engineering, Otemon Gakuin University, Osaka, Japan
Autorzy (7)
- Mazurenko Julia
- Kaykan Larysa S.
- Sijo A. K.
- AGHŻywczak Antoni
- AGHMarzec Mateusz M.
- Turovska Lillia
- Hreus Katarina
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 165537 |
|---|---|
| Data dodania do BaDAP | 2026-01-26 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.nanoso.2025.101603 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Nano-Structures and Nano-Objects |
Abstract
Nickel-substituted copper ferrite nanoparticles were successfully synthesized using a citrate–nitrate sol-gel autocombustion route and evaluated as photocatalysts for the degradation of organic dyes. X-ray diffraction confirmed that all compositions crystallized into a cubic spinel structure (Fd3m), with crystallite sizes in the nanoscale range. X-ray photoelectron spectroscopy revealed that Fe3 + ions were predominant and distributed across tetrahedral and octahedral sites, while Ni2+ and Cu2+ preferentially occupied octahedral positions. BET analysis revealed specific surface areas of 7–16 m2/g, with Cu-rich samples exhibiting higher porosity. Magnetic measurements confirmed magnetic behavior for all Cu1-xNixFe2O4 (0 ≤ x ≤ 1.0) samples, with saturation magnetization increasing from 28.7 emu g−1 to 58.9 emu g−1, ensuring efficient magnetic separation and reusability of the nanoparticles in photocatalytic applications. Optical studies demonstrated a systematic increase in the direct band gap energy from 1.80 eV for CuFe2O4 to 2.29 eV for NiFe2O4, correlating with decreased Urbach energies and suggesting improved structural order with Ni incorporation. Photocatalytic efficiency was investigated using Methylene Blue (MB), Congo Red (CR), and Malachite Green (MG) under visible light and H2O2. The maximum degradation rate was observed for Cu0.8Ni0.2Fe2O4 at pH 10 with kL–H = 0.080 min−1 and 99 % MB removal within 180 min, while CR degradation peaked at x = 0.4 (96 %) and MG at x ≥ 0.4 (kL–H = 0.115 min−1, ∼99 % removal). The catalysts maintained over 95 % activity after five reuse cycles, confirming excellent structural stability and magnetic recoverability. These findings demonstrate that Cu/Ni co-substitution effectively tunes the band structure, enhances redox activity, and enables sustainable photocatalytic performance for wastewater treatment applications.
