Effect of Cu2+ substitution on structural, magnetic and dielectric properties of cobalt ferrite with its enhanced antimicrobial property

Naik, Chandan C.; Gaonkar, Sanket K.; Furtado, Irene; Salker, A. V.

doi:10.1007/s10854-018-9611-1

Cited by 20 publications

(4 citation statements)

References 48 publications

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“…As per reported studies till date, in addition to well-known antimicrobial AgNPs, other metal oxides (e.g. MgO, TiO2, Cu2O, ZnO and CoFe2O4) have been found to be effective against microorganisms [63,64]. The doping of CeFe2O5 NPs with cobalt aided in improving the antimicrobial activities against both Gram positive and Gram negative organisms which is evident from previous studies [65].…”

Section: Antimicrobial Activitymentioning

confidence: 55%

Green Synthesis of Cobalt-Doped CeFe2O5 Nanocomposites Using Waste Gossypium arboreum L. Stalk and Its Application in the Removal of Toxic Water Pollutants

Koul,

Singhvi,

Kim

2024

Preprint

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Currently, there is a tenacious need to find new ways to purify water by eliminating bacterial biofilms, textile dyes, and toxic water pollutants. These contaminants pose significant risks to both human health and the environment. To address this issue, in this study, we have developed an eco-friendly approach that involves synthesizing Cobalt-doped Cerium Iron Oxide (CCIO) nanocomposite (NC) using an aqueous extract of Gossypium arboreum L. stalks. The resulting nanoparticles can be used to effectively purify water and tackle the challenges associated with these harmful pollutants. Nanoparticles excel in water pollutant removal by providing high surface area for efficient adsorption, versatile design for simultaneous removal of multiple contaminants, catalytic properties for organic pollutant degradation, and magnetic features for easy separation, offering cost-effective and sustainable water treatment solutions. CCIO nanocomposite has been synthesized by green co-precipitation method due to biomolecules and co-enzymes present in the aqueous extract of Gossypium arboreum L. stalk; a single-step procedure completed in 5 h reaction time. Further, the synthesis of nanocomposites was confirmed by various characterization techniques such as Fourier-transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), Field emission scanning electron microscopy (FE-SEM), Transmission electron microscopy (TEM), Thermogravimetric analysis (TGA), Dynamic light scattering (DLS), and Energy Dispersive X-Ray (EDX). CCIO NCs were discovered to have a spherical shape and an average size of 40 nm. Based on DLS zeta potential analysis, CCIO NCs were found to be anionic. Also, CCIO NCs showed significant antimicrobial and antioxidant activity. Overall, considering the physical and chemical properties, the application of CCIO NCs in the adsorption of various dyes (~91 %) and water pollutants (chromium = ~ 60 %) has been considered since they exhibit great adsorption capacity owing to their microporous structure which can be a step forward in water purification.

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Section: Antimicrobial Activitymentioning

confidence: 55%

Green Synthesis of Cobalt-Doped CeFe2O5 Nanocomposites Using Waste Gossypium arboreum L. Stalk and Its Application in the Removal of Toxic Water Pollutants

Koul,

Singhvi,

Kim

2024

Preprint

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“…The increase in lattice parameter can be attributed to the difference in ionic radius of Co 2+ (0.74Å) and Cu 2+ (0.76 A). 4,24 25,26 TEM images of Co 1Àx Cu x Fe 2 O 4 /SiO 2 samples with x ¼ 0 (Fig. 4a) and x ¼ 0.2 (Fig.…”

Section: Resultsmentioning

confidence: 99%

Tuning the microstructural and magnetic properties of CoFe₂O₄/SiO₂ nanocomposites by Cu²⁺ doping

et al. 2021

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“…In recent years, studies have focused on developing magnetic nano-inorganic metal oxides (MNMO) to reduce bacterial and viral contamination [41][42][43][44][45]. MNMO has a great potential to control the microorganism (both bacteria and viruses) contamination without risking human life.…”

Section: Antimicrobial Propertiesmentioning

confidence: 99%

Structural, magnetic and antibacterial studies of gadolinium doped cobalt ferrite nanoparticles synthesized at low temperature

Reddy¹,

Rao²,

Babu³

et al. 2023

Adv. Nat. Sci: Nanosci. Nanotechnol.

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In this work structural, magnetic and antimicrobial studies of gadolinium (Gd) doped cobalt ferrite nanopowder samples were synthesised through facile auto-combustion route using citric acid as combustion agent. The pristine nanopowders were sintered at 600 °C. X-ray diffraction (XRD), infrared spectroscopy (IR) measurements indicated the formation of a single spinel phase. The lattice constant gradually increased from 8.3801 Å to 8.3915 Å with increasing Gd concentration. The average crystallite size varied from 54 nm to 42.7 nm. The correlation between the cation distribution from XRD and the magnetic properties is discussed. The substitution of Gd ions significantly reduced the magnetisation from 60.6 to 36.6 emu g−1 and increased the coercivity. Antimicrobial activities of pure and Gd substituted cobalt ferrite are carried out against Gram-positive (Bacillus subtilis) and Gram-negative (Escherichia coli, Pseudomonas aeruginosa) and also against fungi strain (Aspergillus niger) pathogens, suggesting that Gd substitution significantly improves the activity of cobalt ferrite nanopowders.

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Effect of Cu2+ substitution on structural, magnetic and dielectric properties of cobalt ferrite with its enhanced antimicrobial property

Cited by 20 publications

References 48 publications

Green Synthesis of Cobalt-Doped CeFe2O5 Nanocomposites Using Waste Gossypium arboreum L. Stalk and Its Application in the Removal of Toxic Water Pollutants

Green Synthesis of Cobalt-Doped CeFe2O5 Nanocomposites Using Waste Gossypium arboreum L. Stalk and Its Application in the Removal of Toxic Water Pollutants

Tuning the microstructural and magnetic properties of CoFe₂O₄/SiO₂ nanocomposites by Cu²⁺ doping

Structural, magnetic and antibacterial studies of gadolinium doped cobalt ferrite nanoparticles synthesized at low temperature

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Effect of Cu2+ substitution on structural, magnetic and dielectric properties of cobalt ferrite with its enhanced antimicrobial property

Cited by 20 publications

References 48 publications

Green Synthesis of Cobalt-Doped CeFe2O5 Nanocomposites Using Waste Gossypium arboreum L. Stalk and Its Application in the Removal of Toxic Water Pollutants

Green Synthesis of Cobalt-Doped CeFe2O5 Nanocomposites Using Waste Gossypium arboreum L. Stalk and Its Application in the Removal of Toxic Water Pollutants

Tuning the microstructural and magnetic properties of CoFe2O4/SiO2 nanocomposites by Cu2+ doping

Structural, magnetic and antibacterial studies of gadolinium doped cobalt ferrite nanoparticles synthesized at low temperature

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Product

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Tuning the microstructural and magnetic properties of CoFe₂O₄/SiO₂ nanocomposites by Cu²⁺ doping