Characterization of γ-Fe2O3 Nanoparticles Synthesized Through Self-Propagating Combustion Route

Basavaraja, S.; Vijayanand, H.; Venkataraman, A.; Deshpande, Uday; Shripathi, T.

doi:10.1080/15533170701465861

Cited by 13 publications

(5 citation statements)

References 14 publications

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“…There are several methods for synthesizing nanosized ceramic materials, such as, hydrothermal, co-precipitation, combustion, sol-gel, precursor, spray drying and freeze drying, microemulsion and reverse micelle method and microwave techniques (Suresh et al 1991;Awschalom and Vincenzo 1995;Pileni and Moumen 1996;Yu and Gadalla 1996;Dawson 1998;Maclaren and Ponton 1998;Albuquerque et al 1999;Chen et al 1999;Gajbhiye et al 1999;Liu et al 2000;Basavaraja et al 2007;Lagashetty et al 2007). Among these methods, the hydrothermal synthesis, which is one of the soft solution routes, is of current interest and is attractive and a promising method to obtain nanocrsytalline metal oxide particles.…”

Section: Introductionmentioning

confidence: 99%

Solvothermal synthesis and characterization of acicular α-Fe2O3 nanoparticles

et al. 2011

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Nanometer-sized α-Fe 2 O 3 particles have been prepared by a simple solvothermal method using ferric acetylacetonate as a precursor. The products were characterized by X-ray diffraction (XRD), energy dispersive X-ray microanalysis (EDAX), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transition electron microscopy (TEM), infrared spectroscopy (IR) and thermal analysis (TG-DTA). XRD indicates that the product is single-phase α-Fe 2 O 3 with rhombohedral structure. Bundles of acicular shaped nanoparticles are seen in TEM images with an aspect ratio ~ 12; typically 8-12 nm wide and over 150 nm long. The α-Fe 2 O 3 nanoparticles posses a high thermal stability, as observed on thermal analysis traces.

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Section: Introductionmentioning

confidence: 99%

Solvothermal synthesis and characterization of acicular α-Fe2O3 nanoparticles

et al. 2011

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“…This is due to the -OH group of RC. The peak at 647 cm −1 of -Fe 2 O 3 corresponds to the metaloxygen vibrational modes of the spinel compound [18]. In addition, -Fe 2 O 3 shows absorption band in the region of 3600-3100 cm −1 relating to antisymmetric and symmetric -OH stretching and may be assigned for water of adsorption.…”

Section: Resultsmentioning

confidence: 95%

“…However, some agglomerated particles are observed. This is because of the moisture content in some part of the sample [18]. In addition, there is hydrophobic interaction between the -Fe 2 O 3 nanoparticles; as a result, these particles agglomerate and form large clusters.…”

Section: Resultsmentioning

confidence: 99%

Fast Release of Sulfosalicylic Acid from Polymer Implants Consisting of Regenerated Cellulose/γ-Ferric Oxide/Polypyrrole

Chowdhury

Robertson

Al‐Jumaily

et al. 2014

Journal of Applied Chemistry

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This work presents a comparative study on the rate of drug release from implantable matrices induced by electric and magnetic fields separately for better biomedical applications. The matrices were prepared by coating -ferric oxide dispersed regenerated cellulose film by polypyrrole doped with sulfosalicylic acid as an anti-inflammatory drug. The drug release mechanisms were studied under both the electric and the magnetic fields separately in an acetate buffer solution with pH 5.5 and temperature 37 ∘ C during a period of 5 hours. The amount of drug released was analysed by UV-Vis spectrophotometry. The mechanism of drug release from the matrices under electric field includes expansion of conductive polymer chain and the electrostatic force between electron and drug. The drug release mechanism from the matrices under magnetic field is based on the fact that the heat produced locally by magnetic particles loosens the polymer (polypyrrole) chain surrounding the particles. As a result, the drugs attached to the polypyrrole chain come out to the release medium. The matrices showed fast release of drug, that is, more than 60% of the loaded drug was released within 1 h, and are ideal for the treatment of illness in an emergency care.

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“…PEG has alcoholic groups and it burns in air exothermically with precursors to form desired metal oxides/ferrites. In our earlier studies we have successfully used this fuel for the synthesis of γ-Fe 2 O 3 and other metal oxides from different precursors (Venkataraman et al 2001;Lagashetty et al 2005;Basavaraja et al 2007). The structure and morphology of the as-prepared nanocrystalline ZnFe 2 O 4 was characterized and its magnetic properties were studied.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of zinc ferrite nanoparticles obtained by self-propagating low-temperature combustion method

Swamy

Basavaraja

Lagashetty³

et al. 2011

Bull Mater Sci

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The self-propagating low-temperature combustion method was used to produce nanocrystalline particles of zinc ferrite. The products were characterized for chemical and phase composition, morphology and magnetic properties. The results obtained showed the formation of single-phase zinc ferrite nanoparticles with an average particle size of about 40 nm. As-synthesized powder displayed good magnetic property. Due to the simplicity and low cost of this process, it could also become a valuable starting point for the generation of other mixed and complex ferrites.

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Characterization of γ-Fe2O3 Nanoparticles Synthesized Through Self-Propagating Combustion Route

Cited by 13 publications

References 14 publications

Solvothermal synthesis and characterization of acicular α-Fe2O3 nanoparticles

Solvothermal synthesis and characterization of acicular α-Fe2O3 nanoparticles

Fast Release of Sulfosalicylic Acid from Polymer Implants Consisting of Regenerated Cellulose/γ-Ferric Oxide/Polypyrrole

Synthesis and characterization of zinc ferrite nanoparticles obtained by self-propagating low-temperature combustion method

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