Dye degradation and antimicrobial applications of manganese ferrite nanoparticles synthesized by plant extracts

Abstract

Manganese Ferrite nanoparticles are synthesized using biological agents as a fuel by the self-combustion method using ginger root/cardamom seeds extract. The green synthesis of manganese ferrite is eco-friendly, inexpensive, and easy to produce in large-scale solid materials. Plant extract mediated MnFe2O4 nanoparticles are characterized by various techniques to analyse the size, structure, crystallinity, and photocatalytic properties. Energy-dispersive X-ray spectroscopy analysis confirmed the presence of manganese, iron, and oxygen elements. The X-ray diffraction pattern showed spinel structure and was endorsed by Fourier Transform Infrared Spectra (FTIR). The formation of porous structure and the morphology of prepared materials are studied by Scanning Electron Microscopy (SEM) images. This type of structure is useful for the photocatalytic dye degradation of Methylene Blue in visible light under the influence of various concentrations of H2O2. Fenton type effect is observed in visible spectrophotometer for dye degradation. The effects of MnFe2O4 ginger root (MnG) (100 μg) and MnFe2O4 cardamom (MnC) (100 μg) are tested against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and Bacillus subtilis on Mueller Hinton agar plates using well diffusion assay, and the zones of inhibition are measured.

Keywords

• Green synthesis
• Nano-ferrite
• Photocatalytic
• Fenton effect
• Antimicrobial activity
• Plant extract