Synthesis and characterization of magnesium aluminate (MgAl<sub>2</sub>O<sub>4</sub>) spinel (MAS) thin films

Ahmad, Syed Muhammad; Hussain, Tousif; Ahmad, Riaz; Siddiqui, Jamil; Ali, Dilawar

doi:10.1088/2053-1591/aaa828

Cited by 14 publications

(2 citation statements)

References 34 publications

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“…Cobalt aluminate (CoAl 2 O 4 ), known as Thenard's blue, was characterized by its high chemical and thermal stability, as well as good optical properties [23]. Magnesium aluminate (MgAl 2 O 4 ) had a small density, excellent strength at room and high temperature, and good resistance toward chemical attack [24]. Jabbar et al [25] announced that Zn 0.5 Co 0.5 Al 2 O 4 exhibited a larger surface area than that of CoAl 2 O 4 .…”

Section: Introductionmentioning

confidence: 99%

Fabrication, characterization, and antibacterial activity of ferrite, chromite, and aluminate nanoparticles

El Hajjar,

Bitar,

Zahr

et al. 2024

Mater. Res. Express

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Zn0.33Co0.33Mg0.33X2O4 nanoparticles (NPs), where X = Fe, Cr, Al and denoted by F, C, and A, were prepared by the co-precipitation method. X-ray diffraction patterns validated the formation of NPs with cubic spinel structure with the detection of small amounts of impurities in samples C (Cr2O3) and A (MgO). Transmission electron micrographs showed a nearly spherical shape for samples F and A. However, sample C revealed cubic and nearly spherical shapes. Energy-dispersive x-ray analysis ensured the presence of chemical constituents in all samples. The vibrational modes of NPs were confirmed with Fourier transform infrared spectroscopy. The direct bandgap energy values, calculated using ultraviolet-visible spectroscopy, were in the range of 2.355 and 2.967 eV for F, C, and A samples. X-ray photoelectron spectroscopy analysis confirmed the compositions as well as the valence states of all elements. Magnetic hysteresis (M–H) loops revealed a soft ferromagnetic behavior. Sample F exhibited a higher saturation magnetization, remanent magnetization, magnetic moment, and magnetic anisotropy compared to those of samples C and A. The antibacterial activity of the tested samples against four bacteria (Staphylococcus aureus, Stenotrophomonas maltophilia, Escherichia coli, and Enterococcus faecium) was determined using the broth microdilution assay, minimum bactericidal concentration (MBC), and time-kill test. The prepared NPs exhibited varying antibacterial activity due to multiple factors. These results highlighted the potential utility of the ternary ferrite, chromite, and aluminate NPs in the treatment of microbial infections, particularly multidrug-resistant bacteria.

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Section: Introductionmentioning

confidence: 99%

Fabrication, characterization, and antibacterial activity of ferrite, chromite, and aluminate nanoparticles

El Hajjar,

Bitar,

Zahr

et al. 2024

Mater. Res. Express

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“…It has a hexagonal structure with band gap (E g ) of ~3.34 eV [4]. Magnesium aluminate (MgAl 2 O 4 ) is another oxide material with various technological applications such as in solid-state lighting and electrical industry [5,6]. It has a face centered cubic (fcc) unit cell with a wide E g of ~3.20 eV [7,8].…”

Section: Introductionmentioning

confidence: 99%

The Structural, Morphological and Optical Studies on Baal2o4/Mgal2o4/Mgo:X% Gd3+ (0 ≤ X ≤ 1.1) Mixed Phases Synthesized by Sol-Gel Method

Bele

Mhlongo

Koao³

et al. 2023

Preprint

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Infrared Reflection and Transmission Spectra of MgAl2O4 Ceramic Spinel

et al. 2020

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Synthesis and characterization of magnesium aluminate (MgAl₂O₄) spinel (MAS) thin films

Cited by 14 publications

References 34 publications

Fabrication, characterization, and antibacterial activity of ferrite, chromite, and aluminate nanoparticles

Fabrication, characterization, and antibacterial activity of ferrite, chromite, and aluminate nanoparticles

The Structural, Morphological and Optical Studies on Baal2o4/Mgal2o4/Mgo:X% Gd3+ (0 ≤ X ≤ 1.1) Mixed Phases Synthesized by Sol-Gel Method

Infrared Reflection and Transmission Spectra of MgAl2O4 Ceramic Spinel

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Synthesis and characterization of magnesium aluminate (MgAl2O4) spinel (MAS) thin films

Cited by 14 publications

References 34 publications

Fabrication, characterization, and antibacterial activity of ferrite, chromite, and aluminate nanoparticles

Fabrication, characterization, and antibacterial activity of ferrite, chromite, and aluminate nanoparticles

The Structural, Morphological and Optical Studies on Baal2o4/Mgal2o4/Mgo:X% Gd3+ (0 ≤ X ≤ 1.1) Mixed Phases Synthesized by Sol-Gel Method

Infrared Reflection and Transmission Spectra of MgAl2O4 Ceramic Spinel

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Synthesis and characterization of magnesium aluminate (MgAl₂O₄) spinel (MAS) thin films