Novel Green Visible light Photodegradation and Antibacterial activity Protocols for Effluents from Dye Industries with special reference to Rhodamine B using SrFe₁₂O₁₉/CuO/TiO₂ Magnetic Nanocomposites

DOI

10.2991/978-94-6463-648-2_14How to use a DOI?

Keywords

SrFe12O19/CuO/TiO2 nanomagnetic composites; Rhodamine B; Visible-light Photodegradation; Antibacterial Studies

Abstract

The current investigation utilizes a low-temperature sol-gel method to synthesize and characterize novel SrFe₁₂O₁₉/CuO/TiO₂ magnetic nanocomposites. Several analytical methods were used to evaluate the produced nanocomposites structural, morphological, optical, magnetic, and functional aspects. X-ray diffraction (XRD) investigation validated the successful synthesis of the nanocomposites, which showed characteristic diffraction peaks corresponding to TiO₂’s anatase phase. The average particle size was about 8 nm, which is consistent with transmission electron microscopy (TEM) data. SEM pictures revealed spherical nature of the as synthesized particles, while energy-dispersive X-ray spectroscopy (EDX) examination identified Sr, Fe, Cu, Ti, and O in the material. Fourier-transform infrared spectroscopy (FTIR) revealed more indications of effective nanocomposite production. The optical characteristics were evaluated using UV-visible diffuse reflectance spectroscopy (UV-DRS), which shown a band-gap energy of 2.318 eV for the nanocomposites. The magnetic properties of SrFe₁₂O₁₉ were assessed via vibrating sample magnetometry (VSM), with the saturation magnetization (Ms) of the nanocomposites being determined during the analysis. The functional properties of the nanocomposites were assessed through their photocatalytic and antibacterial activities. Rhodamine B dye was degraded photo catalytically using visible light. Interestingly, the SrFe₁₂O₁₉/CuO/TiO₂ nanocomposite with a molar ratio of 0.8:0.1:0.1 demonstrated 100% dye degradation efficiency within 55 minutes at pH 7 and 10 ppm concentration. The antibacterial activity was assessed against four bacterial strains. Staphylococcus aureus and Bacillus subtilis are Gram-positive bacteria, while Gram-negative bacteria Escherichia coli and Klebsiella-la pneumoniae. The nanocomposites exhibited significant antibacterial activity, further underscoring their potential in biomedical and environmental applications. In conclusion, these SrFe₁₂O₁₉/CuO/TiO₂ nanocomposites offer promising multifunctional properties, including strong photocatalytic efficiency and enhanced antibacterial activity, making them suitable candidates for environmental remediation and antimicrobial applications.

Copyright

© 2025 The Author(s)

Open Access

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TY  - CONF
AU  - K. Jyothi Priya
AU  - M. Suneetha
AU  - Ch. Ramya Kumari
AU  - R. Santhi Goldina
AU  - G. Supriya
AU  - M. Padma
AU  - S. Paul Douglas
PY  - 2025
DA  - 2025/02/07
TI  - Novel Green Visible light Photodegradation and Antibacterial activity Protocols for Effluents from Dye Industries with special reference to Rhodamine B using SrFe₁₂O₁₉/CuO/TiO₂ Magnetic Nanocomposites
BT  - Proceedings of the International Conference on Bio-Based Environment for Sustainable Territory (ICBEST 2024)
PB  - Atlantis Press
SP  - 155
EP  - 177
SN  - 2468-5747
UR  - https://doi.org/10.2991/978-94-6463-648-2_14
DO  - 10.2991/978-94-6463-648-2_14
ID  - Priya2025
ER  -