Magnetic and structural characterization of Sn doped cobalt ferrites; A visible light-driven photocatalysts for degradation of rhodamine-B and modeling the process by artificial intelligence tools

• Published in: Journal of alloys and compounds Vol. 947; p. 169572
• Main Authors: Zimur, S.D., Gaikwad, Pratapsingh, Mali, A.V., Patil, Amit Prakash, Burungale, S.H., Kamble, P.D.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 25.06.2023
• Subjects: ANFIS; ANN; Magnetic properties; Photocatalytic activity; Rhodamine B; Sol-gel auto combustion method; Sol-gel auto combustion method; Photocatalytic activity; ANN; ANFIS; Rhodamine B; Magnetic properties
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2023.169572

Tin (Sn) substituted cobalt ferrites Co1−xSnxFe2O4 with composition (x = 0.0, 0.1, 0.2, 0.3, 0.4 and 0.5) were synthesized utilizing sol-gel auto combustion method. All synthesized powders were characterized for their structural, magnetic and optical characterization after calcination. The single phase spinel with good crystallisation and a decreasing crystallite size with Sn substitution is confirmed by the powder X-ray diffraction (XRD) pattern. The magnetic measurements were carried out at room temperature where saturation magnetization values show sufficient magnetic nature of calcinated ferrites. The bandgap values for pure cobalt and Sn-substituted cobalt ferrites were closer to the experimental value. The visible light photocatalytic degradation of Rhodamine B was carried out in presence of Sn substituted cobalt ferrites that shows good catalytic activity up to 87% degradation for Co0.5Sn0.5Fe2O4 catalyst. Additionally, this study used Artificial Neural Network (ANN) and Adaptive Neuro-Fuzzy Interface System (ANFIS) models to simulate degradation efficiency with inputs including time, pH, and catalyst dosage. The results revealed that the 3–2–2–1 structure ANN4 model outperformed the other ANN and ANFIS models in the testing phase (RMSE = 6.90% and NSE = 0.92). According to the findings of this study, artificial intelligence models are capable of precisely predicting Rhodamine B degradation. [Display omitted] •The sol-gel synthesis of magnetic photocatalyst Sn substituted cobalt ferrites.•The synthesized Sn substituted cobalt ferrites are mesoporus nature with average crystallite size 22 to 36 nm.•Prominent photocatalytic non-toxic Sn substituted magnetic ferrites employed for removal of dyes from textile industry wastewater.•Utilization of ANN and ANFIS models to simulate degradation efficiency.