Heterogeneous oxide catalysts based on spinel ferrites with the general formula MFe2O4 can effectively solve a number of important problems. Among them, copper (II) ferrite (CuFe2O4) stands out, a compound with high chemical stability and catalytic characteristics, which makes it an ideal heterogeneous catalyst for a number of processes.In the presented study, the possibility of forming a composite material based on copper (II) ferrite and a carbon carrier was studied, which used activated carbon from coconut shells, coke produced by a branch of PJSC Bashneft Joint Stock Oil Company. The obtained materials were characterized by X-ray phase analysis and scanning electron microscopy. It is shown that the formation of the oxide component on the surface of the carbon carrier proceeds along the surface of the grains. The resulting oxide materials had a cubic spinel structure. It was found that the most characteristic particle size of activated carbon is 0.5-1.0 mm, for coke - A fraction of 0.02-0.05 mm Revealed a correlation between the value of the specific surface area of the carrier and the amount of composite material formed: for a carrier with a minimum value of the specific surface area, the highest percentage of magnetic composite formation was noted. It was suggested that an increase in the surface area of composites may be associated with the formation of oxide materials of various thicknesses on the substrate, while the oxide compounds themselves have a developed surface. The results obtained open up new possibilities for searching for technological factors for controlling the dimensional characteristics and, as a result, the structurally sensitive properties of oxide compounds and composite materials based on them.
COKE, COPPER FERRITE, SPINEL STRUCTURE, COMPOSITE MATERIAL FORMATION
1. Y. Li, B. Guan, J. Guo, Y. Chen, Z. Ma, Z. Zhuang, C. Zhu, H. Dang, L. Chen, K. Shu, K. Shi, Z. Guo, C. Yi, J. Hu, X. Hu, Z. Huang, J. Clean. Prod., 450, 141849, (2024), https://doi.org/10.1016/j.jclepro.2024.141849.
2. M.S. Naga Sai, D. De, B. Satyavathi, J. Clean. Prod., 327, 129467, (2021), DOI:https://doi.org/10.1016/j.jclepro.2021.129467.
3. Z. Yue, L.L. Sun, S.N. Sun, X.F. Cao, J.L. Wen, M.Q. Zhu, Carbohydr. Polym., 288, 119420, (2022), DOI:https://doi.org/10.1016/j.carbpol.2022.119420.
4. R. Otomo, T. Tatsumi, T. Yokoi, Catal. Sci. Technol., 5, 4001-4007, (2015), DOI:https://doi.org/10.1039/C5CY00719D.
5. M. Zuo, X. Zheng, W. Che, K. Wang, Y. Chen, X.i Zeng, Separat. Purif. Technol., 362 (3), 131904, (2025), https://doi.org/10.1016/j.seppur.2025.131904.
6. W. Zou, L. Yang, Z. Duan, J. Wang, S. Zhou, D. Yin, Q. Xu, X. Liu, Molec. Cat., 578, 114996, (2025), https://doi.org/10.1016/j.mcat.2025.114996.
7. S. Bedoya, D. González-Vera, E. Leal-Villarroel, F. Gracia, M.E. Domine, G.Pecchi, C.C. Torres, C.H. Campos, Inorg. Chem. Commun., 182 (3), 115559, (2025), https://doi.org/10.1016/j.inoche.2025.115559.
8. C. Van Tran, T.-D. Dang, V.D. Lai, G. Thi Nguyen, B. Thi Hoa, H.T. Nguyen, H.P.N. Thi, T.T. Nguyen, D.D. La, Fuel, 380, 133196, (2025), DOI:https://doi.org/10.1016/j.fuel.2024.133196.
9. M.A.A. El-Khair, A.G. Al-Gamal, K.I. Kabel, W.S. Gado, A.S. Morshedy Int. J. Hydrog. Energy, 101, 280-294, (2025), DOI:https://doi.org/10.1016/j.ijhydene.2024.12.449
10. I. Othman, S. Al Jitan, F. Banat, G. Palmisano, M. Abu Haija, Mat. Today Nano, 33, 100719, (2026), DOI:https://doi.org/10.1016/j.mtnano.2025.100719.
11. F. Alheibshy, A. Alkhafaji, D.J. Jasim, P.K. Singh, Y.M. Fahmy, M. Karimov, I. Mahariq, A. Abduvokhidov, S. Usanov, R.A. Haggam, J. Water Proc. Eng., 87, 110113, (2026), https://doi.org/10.1016/j.jwpe.2026.110113.
12. J. Ai, Y. Shuai, M. Hu, L. Cheng, S. Luo, W. Li, Z. Chen, L. Hu, Z. Zhou, Ceram. Int., 49, 22941-22951, (2023). https://doi.org/10.1016/j.ceramint.2023.04.119.
13. Y. Cheng, S. Zhang, Z. Wang, B. Wang, J. You, R. Guo, H. Zhang, Sep. Purif. Technol., 318, 123971, (2023), https://doi.org/10.1016/j.seppur.2023.123971.
14. A. Akbar, B.L.M.A. Howlader, A.V.Q. Arif Islam, T. Chatterjee, M. Ghosh, J. Water Process Eng., 79, 108871, (2025),https://doi.org/10.1016/j.jwpe.2025.108871.
15. E.D.N. Silva, I.L.O. Brasileiro, V.S. Madeira, B.A. de Farias, M.L.A. Ramalho, E. Rodríguez-Aguado, E. Rodríguez-Castellón, J. Environ. Chem. Eng. 8, 104132, (2020), https://doi.org/10.1016/j.jece.2020.104132.
16. X. Guo, K. Wang, Y. Xu, Mater. Sci. Eng., B, 245, 75-84, (2019), https://doi.org/10.1016/j.mseb.2019.05.015.
17. J. Wen, Y. Long, L. Zhu, L. Zeng, X. Qin, S. Song, M. Lu, L. Deng, Environ. Res., 275, 121413, (2025), https://doi.org/10.1016/j.envres.2025.121413.
18. X. Wei, J. Zang, P. Chen, Z. Wang, S. Wang, Y. Zhao,Z. Fang, J. Water Process Eng., 71, 107436, (2025), https://doi.org/10.1016/j.jwpe.2025.107436.
19. V. Vasudevan, B. Pei, W. Xiong, J. He, S. Li, D. Huang, X. Liao, J. Lin, J. Environ. Chem. Eng., 12, 114813, (2024), https://doi.org/10.1016/j.jece.2024.114813.
20. X. Guo, K. Wang, D. Li, J. Qin, Appl. Surf. Sci., 420, 792-801, (2017), http://dx.doi.org/10.1016/j.apsusc.2017.05.178.
21. S.X. Yin, S. Jiang, R. Chen, B. Chen, W. Xie, D. Li, Inorg. Chem. Commun., 183 (2), 115931, (2026), https://doi.org/10.1016/j.inoche.2025.115931.
22. Shabelskaya N., Sulima S., Sulima E., Medennikov O., Kulikova M., Kolesnikova T., Sushkova S. Gels. 9, (3), 217, (2023), DOI:https://doi.org/10.3390/gels9030217.
