Environmental Impacts of Ecofriendly Iron Oxide Nanoparticles on Dyes Removal and Antibacterial Activity

Abstract

Biosynthesized nanoparticles have a promising future since they are a more environmentally friendly, cost-effective, repeatable, and energy-efficient technique than physical or chemical synthesis. In this work, Purpureocillium lilacinum was used to synthesize iron oxide nanoparticles (Fe2O3-NPs). Characterization of mycosynthesized Fe2O3-NPs was done by using UV–vis spectroscopy, transmission electron microscope (TEM), dynamic light scattering (DLS), and X-ray diffraction (XRD) analysis. UV–vis gave characteristic surface plasmon resonance (SPR) peak for Fe2O3-NPs at 380 nm. TEM image reveals that the morphology of biosynthesized Fe2O3-NPs was hexagonal, and their size range between 13.13 and 24.93 nm. From the XRD analysis, it was confirmed the crystalline nature of Fe2O3 with average size 57.9 nm. Further comparative study of photocatalytic decolorization of navy blue (NB) and safranin (S) using Fe2O3-NPs was done. Fe2O3-NPs exhibited potential catalytic activity with a reduction of 49.3% and 66% of navy blue and safranin, respectively. Further, the antimicrobial activity of Fe2O3-NPs was analyzed against pathogenic bacteria (Pseudomonas aeruginosa, Escherichia coli, Bacillus subtilis, and Staphylococcus aureus). The Fe2O3-NPs were clearly more effective on gram-positive bacteria (S. aureus and B. subtilis) than gram-negative bacteria (E. coli and P. aeruginosa). Thus, the mycosynthesized Fe2O3-NPs exhibited an ecofriendly, sustainable, and effective route for decolorization of navy blue and safranin dyes and antibacterial activity.

Green Synthesis and Antibacterial Activity of Ag/Fe2O3 Nanocomposite Using Buddleja lindleyana Extract

“…Leaf extract-mediated synthesis of Fe 2 O 3 NPs is gaining the attention of researchers because of its lower toxicity compared to other chemical reduction methods [ 28 ]. Due to their potential utility in targeted drug administration and magnetic hyperthermia cancer treatment, extensive study has been completed on the anticancer properties of Fe 2 O 3 NPs [ 60 , 61 , 62 , 63 ]. There have been very few reports of investigations on the creation of Ag/Fe 2 O 3 NPs.…”

A mini review on green nanotechnology and its development in biological effects

“…Numerous procedures have been developed for the synthesis of nano-materials due to the large variety of uses afforded by these materials in various branches of research and industry (Jamkhande et al 2019 ). To create nano-particles of various sizes and forms, diverse synthesis techniques employ a variety of chemical, physical, and biological factors (Sharaf et al 2022 ; Eman et al 2022 ; Salem et al 2023 ).…”

Unveiling Antimicrobial and Insecticidal Activities of Biosynthesized Selenium Nanoparticles Using Prickly Pear Peel Waste

“…Recent years have seen the rapid synthesis of nanocrystals (Ag, Zn, Se, Au, and Cu) using biological (plants, fungi, algae, and bacteria) techniques [ 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 ]. These NPs are prepared in pure, non-toxic, and environmentally friendly manners by utilizing high-energy renewable materials to support the safety and reliability of the NP development processes [ 33 , 34 , 35 , 36 , 37 , 38 , 39 ]. Plant-fabricated NP development can proceed more quickly since there is no need to maintain the exact conditions in media and culture that are necessary for other biological entities [ 40 , 41 , 42 ].…”