The effect of temperature on the synthesis of magnetite nanoparticles by the coprecipitation method

Gutierrez, Frederico Vieira; Lima, Iara Souza; De Falco, Anna; Ereias, Beatriz Marques; Baffa, Oswaldo; Diego de Abreu Lima, Caique; Morais Sinimbu, Lanna Isabely; de la Presa, Patricia; Luz-Lima, Cleanio; Damasceno Felix Araujo, Jefferson Ferraz

doi:10.1016/j.heliyon.2024.e25781

Cited by 3 publications

(1 citation statement)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The traditional methods for the synthesis of Fe 3 O 4 nanoparticles include the coprecipitation method [15][16][17], microemulsion method [18][19][20], and sol-gel method [21][22][23], etc. However, the Fe 3 O 4 nanoparticles prepared by these three methods are usually uncontrollable, and the monodispersity cannot meet the requirements for the assembly of MRPCs; however, the solvothermal method is commonly used for the synthesis of monodisperse Nanomaterials 2024, 14, 852 2 of 17 nano Fe 3 O 4 to construct MRPCs due to its flexibility and adjustability.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Controllable Superparamagnetic Nano Fe3O4 Based on Reduction Method for Colloidal Clusters of Magnetically Responsive Photonic Crystals

Chen,

Tu,

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

In this paper, we designed and investigated a reduction-based method to synthesize controllably monodisperse superparamagnetic nano Fe3O4 colloidal clusters for magnetically responsive photonic crystals. It was shown that the addition of ascorbic acid (VC) to the system could synthesize monodisperse superparamagnetic nano Fe3O4 and avoided the generation of γ-Fe2O3 impurities, while the particle size and saturation magnetization intensity of nano Fe3O4 gradually decreased with the increase of VC dosage. Nano Fe3O4 could be rapidly assembled into photonic crystal dot matrix structures under a magnetic field, demonstrating tunability to various diffraction wavelengths. The nano Fe3O4 modified by polyvinylpyrrolidone (PVP) and silicon coated could be stably dispersed in a variety of organic solvents and thus diffracted different wavelengths under a magnetic field. This is expected to be applied in various scenarios in the field of optical color development.

show abstract

Section: Introductionmentioning

confidence: 99%

Synthesis of Controllable Superparamagnetic Nano Fe3O4 Based on Reduction Method for Colloidal Clusters of Magnetically Responsive Photonic Crystals

Chen,

Tu,

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

show abstract

Effects of Temperature and Precursor Concentration on the Morphological and Optical Properties of Iron Oxide Nanoparticles

Mona,

Songca,

Ajibade

2024

Chemistry Africa

View full text Add to dashboard Cite

Iron oxide nanoparticles are inexpensive materials that are environmentally friendly and have properties that render them suitable for wide range of applications. A facile and time-effective coprecipitation method was used to prepare iron oxide nanoparticles in a 1:1 molar ratio of Fe2+ and Fe3+ ions in solution. Iron oxide nanoparticles obtained at 18 and 60 °C yielded spherical magnetite nanoparticles with particle sizes of 7.63 and 8.5 nm respectively while comprising a mixture of magnetite and hematite nanorods, with a mean width of 9.5 nm and a mean length of 75 nm were obtained at 90 °C. Iron oxide nanoparticles synthesized at 18 °C have energy band gap of 4.16 eV while those synthesized at 60 and 90 °C have the same band gap of 4.66 eV. Precursor concentrations of 0.042, 0.08 and 0.0126 M yielded spherical magnetite nanoparticles with particle sizes of 7.94, 8.5 and 8.5 nm respectively and the particle size range increased with increasing concentration. Magnetite nanoparticles synthesized with concentrations of 0.042, 0.08 and 0.126 M have optical band gaps of 4.65, 4.88 and 5.19 eV respectively. The magnetite crystalline phase was produced regardless of concentration at temperatures of 18 and 60 °C while a temperature of 90 °C yielded a mixture of magnetite and hematite phases. The band optical band gap showed direct proportionality with temperature and concentration in an inert environment.

show abstract

Impacts of designed vanillic acid-polymer-magnetic iron oxide nanocomposite on breast cancer cells

Barahuie,

Dorniani,

Saifullah

et al. 2024

Heliyon

View full text Add to dashboard Cite

The effect of temperature on the synthesis of magnetite nanoparticles by the coprecipitation method

Cited by 3 publications

References 35 publications

Synthesis of Controllable Superparamagnetic Nano Fe3O4 Based on Reduction Method for Colloidal Clusters of Magnetically Responsive Photonic Crystals

Synthesis of Controllable Superparamagnetic Nano Fe3O4 Based on Reduction Method for Colloidal Clusters of Magnetically Responsive Photonic Crystals

Effects of Temperature and Precursor Concentration on the Morphological and Optical Properties of Iron Oxide Nanoparticles

Impacts of designed vanillic acid-polymer-magnetic iron oxide nanocomposite on breast cancer cells

Contact Info

Product

Resources

About