Photocatalytic and Antibacterial Activity of CoFe2O4 Nanoparticles from Hibiscus rosa-sinensis Plant Extract

Abstract

Biogenic CoFe2O4 nanoparticles were prepared by co-precipitation and Hibiscus rosa sinensis plant leaf was used as a bio-reductant of the nanoparticle productions. The biosynthesized CoFe2O4 nanoparticles were characterized by XRD, FTIR, UV, VSM, and SEM via EDX analysis. The cubic phase of biosynthesized CoFe2O4 nanoparticles and their crystallite size was determined by XRD. The Co-Fe-O bonding and cation displacement was confirmed by FTIR spectroscopy. The presence of spherically-shaped biosynthesized CoFe2O4 nanoparticles and their material were confirmed by SEM and TEM via EDX. The super-paramagnetic behaviour of the biosynthesized CoFe2O4 nanoparticles and magnetic pulse was established by VSM analysis. Organic and bacterial pollutants were eradicated using the biosynthesized CoFe2O4 nanoparticles. The spinel ferrite biosynthesized CoFe2O4 nanoparticles generate radical and superoxide ions, which degrade toxic organic and bacterial pollutants in the environment.

Cobalt Iron Oxide-Conjugated Tin Oxide Nanocomposite for Antibacterial Activity against Multidrug-Resistant E. coli Isolated from Urinary Tract Infections

“…Inbaneson et al proved the potential antibacterial activity of silver nanoparticles against E. coli isolated from UTIs [26]. In addition, cobalt ferrite, SnO2, and silver nanoparticles have been shown to have antibacterial efficacy against multidrug-resistant bacterial strains [11,15,16,18,27]. Another study showed the antibacterial activity of pure and co-doped (Fe & Ni) tin oxide nanoparticles against gram-positive and gram-negative bacteria [28].…”

“…Therefore, due to their advantages, NPs can be employed to build and create various medication delivery systems. Organic and metallic nanoparticles and their combinations are examples of these systems for managing UTIs; the design of these NPs combines a matrix with antimicrobial properties and the incorporation of biologically active molecules such as antibiotics, plant extracts or proteins to boost the antimicrobial capacity of the new systems [11,12].…”

Temperature annealing dependence of structural, magnetic, and antibacterial properties of silver substituted cobalt ferrite nanoparticles produced by coprecipitation route

“…The resulting ROS production will affect the level of antibacterial activity [58]. The balance will be disrupted when there is an increase in ROS in which the role of ROS is to inhibit protein function, cause DNA damage, and affect the level of lipid peroxidation which causes damage to cell membranes [59][60][61]. ROS production is determined by nanoparticles and depends on several factors such as size, morphology, shape, and release of metal ions [62,63].…”

ZIF-8@CoFe2O4 as a highly efficient bifunctional electrocatalyst for the methanol oxidation and oxygen evolution reactions

“…34 CoFe 2 O 4 is widely used in wastewater treatment, 35 electrocatalytic applications (such as supercapacitors and overall water splitting), 36 Li-ion batteries, 37 the OER and ORR, 38 magnetic resonance imaging, 39 and photocatalytic and antibacterial applications. 40…”

“…34 CoFe 2 O 4 is widely used in wastewater treatment, 35 electrocatalytic applications (such as supercapacitors and overall water splitting), 36 Li-ion batteries, 37 the OER and ORR, 38 magnetic resonance imaging, 39 and photocatalytic and antibacterial applications. 40 In this study, ZIF-8@CoFe 2 O 4 composites were synthesized using a simple method (Scheme 1) and subsequently used as electrocatalysts for both the MOR and OER. XRD, XPS, FTIR, SEM, and HR-TEM were used to characterize the electrocatalysts.…”