Green Visible light catalysis for dye effluent Degradation with special reference Alizarin red and Antibacterial activity using SrFe12O19/TiO2/SiO2/GO Nanocomposite
- DOI
- 10.2991/978-94-6463-648-2_16How to use a DOI?
- Keywords
- SrFe 12O19 /TiO 2 /SiO 2 /GO; Sol-gel Method; Hummers Method; Photocatalytic Activity; Nanocomposite; Alizarin red dye; Antibacterial activity
- Abstract
For the photocatalytic degradation of dye, ternary metal oxides (SrFe12O19/TiO2/SiO2) and their nanocomposites with graphene oxide were produced using the Sol-gel and Hummers’ process, respectively. UV–Vis diffuse reflection spectroscopy (DRS) revealed that the samples a low band gap of 2.29 eV. The reduced band gap of SrFe12O19/TiO2/SiO2/GO resulted in significantly enhanced photocatalytic activity compared to the bare photocatalysts. The calcined samples of SrFe12O19/TiO2/SiO2/GO showed optimal photocatalytic performance, achieving 100% degradation of Alizarin red dye under visible light irradiation within 60 minutes at pH-6 (dye concentration 10ppm). Scanning electron microscopy (SEM) and X-ray diffraction (XRD) were in used to assess the phase purity, structural properties and surface morphology of the prepared nanomaterials and their nanocomposites. Fourier-transform infrared (FTIR) spectroscopy was used to identify the functional groups in the manufactured metal oxides, confirming the presence of M − O (metal-oxygen) bonds. Vibrating sample magnetometry (VSM) was familiar analyze the magnetic properties of the composite particles. The outcomes demonstrated that the SrFe12O19/TiO2/SiO2/GO composite particles consisted of spherical nanoparticles approximately 30 nm in diameter. The antibacterial activity of the nanocomposites was tested against Gram-negative Pseudomonus aeruginosa (ATCC-15692) and Gram-positive Micrococcus luteus (ATCC 9341) bacteria. Moreover, SrFe12O19 nanoparticles possess excellent magnetic properties, which are largely retained in the TSG composite and can be easily separated from suspension by applying a magnetic field. These magnetic composite nanoparticles demonstrated substantial photocatalytic efficiency, making them promising for water remediation.
- Copyright
- © 2025 The Author(s)
- Open Access
- Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.
Cite this article
TY - CONF AU - M. Suneetha AU - G. Hima Bindu AU - Ch. Ramya Kumari AU - K. Jyothi Priya AU - D. Swapna AU - R. Jayashree AU - S. Paul Douglas PY - 2025 DA - 2025/02/07 TI - Green Visible light catalysis for dye effluent Degradation with special reference Alizarin red and Antibacterial activity using SrFe₁₂O₁₉/TiO₂/SiO₂/GO Nanocomposite BT - Proceedings of the International Conference on Bio-Based Environment for Sustainable Territory (ICBEST 2024) PB - Atlantis Press SP - 195 EP - 220 SN - 2468-5747 UR - https://doi.org/10.2991/978-94-6463-648-2_16 DO - 10.2991/978-94-6463-648-2_16 ID - Suneetha2025 ER -