Mg1-xNixFe2-xCrxO4 synthesis via hydrothermal route: Effect of doping on the structural, optical, electrical, magnetic and photocatalytic properties

Khaliq, Naba; Bibi, Ismat; Majid, Farzana; Arshad, Muhammad; Ghafoor, Aamir; Nazeer, Zarish; Ezzine, Safa; Alwadai, Norah; Nazir, Arif; Iqbal, Munawar

doi:10.1016/j.rinp.2022.106059

Cited by 16 publications

(13 citation statements)

References 35 publications

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“…These factors can be utilized to alter the properties of nanomaterials and achieve novel nanostructures. Among the mentioned techniques, doping is an effective strategy for altering material properties by introducing specific impurities, resulting in changes in conductivity, resistivity, and charge carrier concentration [24,25,[39][40][41].…”

Section: Introductionmentioning

confidence: 99%

Electronic and optical characteristics of phosphorus-doped two-dimensional hexagonal boron arsenide: the effects of doping concentration and mechanical strain

Ertekin

2024

Phys. Scr.

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The present study investigates the impact of P doping and stretching loads on phonon dispersion, electronic properties, and optical characteristics of P-doped hexagonal boron arsenide (h-BAs(1-x)Px), where the doping level x varies from 0 to 1, employing the density functional theory (DFT) method. The findings reveal that the chemical bonds in h-BAs(1-x)Px monolayers are indeed covalent. Furthermore, an increase in P concentration from 0.0% to 100% leads to enhancement in the band gap, approximately 18.42%. However, regardless of variations in P concentration or the application of tensile strains up to 4%, the electronic nature of h-BAs(1-x)Px remains unaltered. These monolayers continue to exhibit characteristics of a direct band gap semiconductor at the K wave vector. On the other hand, there exists an intricate interplay between strain and optical properties. Investigating the dielectric functions, absorption coefficient, refractive index, and reflectivity coefficient of h-BAs(1-x)Px monolayers provides insights into their behavior in the ultraviolet spectrum.

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Section: Introductionmentioning

confidence: 99%

Electronic and optical characteristics of phosphorus-doped two-dimensional hexagonal boron arsenide: the effects of doping concentration and mechanical strain

Ertekin

2024

Phys. Scr.

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“…8,9 In this regard, advanced oxidation methods for eliminating resistant or refractory pollutants are highly effective, which include redox reactions, photocatalytic degradation, ozonation, and hydrogen peroxide oxidation-based advanced oxidation processes. 10,11 One promising way to address the serious issue of water contamination is through the use of photocatalysis. Using photocatalysts, which are semiconductors that react with visible or UV light, this simple process does not require complicated equipment.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, it is imperative to extract the catalysts from the liquid post-treatment for potential reuse, a process that incurs substantial costs and time expenditures. 10,11 Addressing the separation challenge can be achieved by anchoring metal oxides onto solid substrates such as glass, ceramics, polymers, zeolites, or sand. However, this approach comes with certain drawbacks, including a reduction in surface area, limited interaction with the reaction medium, and constraints on the photocatalyst's exposure to light.…”

Section: Introductionmentioning

confidence: 99%

NiO/MnFe₂O₄ Nanocomposite Photoluminescence, Structural, Morphological, Magnetic, and Optical Properties: Photocatalytic Removal of Cresol Red under Visible Light Irradiation

Amjad,

Bibi,

Majid

et al. 2024

ACS Omega

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In this study, pure nickel oxide (NiO), manganese ferrite (MnFe2O4 or MFO), and binary nickel oxide/manganese ferrite (NiO/MFO1–4) nanocomposites (NCs) were synthesized using the Sol–Gel method. A comprehensive investigation into their photoluminescence, structural, morphological, magnetic, optical, and photocatalytic properties was conducted. Raman analysis, UV–Vis spectroscopy, Fourier-transform infrared spectroscopy, scanning electron microscopy, and X-ray diffraction techniques were used to characterize the materials. The synthesized samples exhibited superparamagnetic behavior, as revealed by our analysis of their magnetic properties. A lower recombination rate was shown by the photoluminescence analysis, which is helpful for raising photocatalytic activity. The photocatalytic activity was evaluated for the degradation of Cresol Red (CR) dye. 91.6% of CR dye was degraded by NiO/MFO-4 nanocomposite, and the NC dosage as well as solution pH affected the photocatalytic performance significantly. In four sequential photocatalytic cycles, the magnetically separable NCs were stable and recyclable. The enhanced photocatalytic activity and magnetic separability revealed the potential application of NiO/MFO-4 as an efficient photocatalyst for the removal of dyes from industrial wastewater under solar light irradiation.

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“…The discharge of AG into water channels during its synthesis and processing damages the water quality along with preventing light penetration. This also causes the lowering of dissolved oxygen content in water and environment. − …”

Section: Introductionmentioning

confidence: 99%

Synthesis of Oval-Shaped Bi₂Al₄O₉ Nanoparticles and Their Applications for the Degradation of Acid Green 25 and as Fuel Additives

Fatima,

Iqbal,

Bhatti

et al. 2023

ACS Omega

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The present study was designed to synthesize an oval-shaped bimetallic bismuth aluminate (Bi2Al4O9) nanoparticles through a solvothermal approach. The resulting structure and morphology of synthesized materials were characterized through X-ray diffraction and scanning electron microscopy. The catalytic performance of Bi2Al4O9 was investigated using acid green 25 (AG-25) as the model dye. The effect of various parameters like catalyst dose, H2O2 concentration, and temperature on dye degradation was studied. The Bi2Al4O9 nanocomposite exhibited the maximum removal of 95% within 50 min at 0.3 M H2O2 concentration, 0.05 mg/mL catalyst dose, and 315 K temperature. The photocatalytic removal of AG-25 followed pseudo-first-order kinetics. The thermodynamics study exposed that thermal catalytic degradation is a spontaneous, endothermic, as well as entropy-driven reaction that moves in the forward direction at the higher temperatures. The Bi2Al4O9 composite was further applied as fuel additives in order to study combustion and physical characteristics of the modified fuel. The efficacy of modified fuel was studied by investigating the fuel parameters at different Bi2Al4O9 dosages. Results revealed that synthesized NPs are excellent photocatalysts and could possibly be used for the removal of toxic pollutants.

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Mg1-xNixFe2-xCrxO4 synthesis via hydrothermal route: Effect of doping on the structural, optical, electrical, magnetic and photocatalytic properties

Cited by 16 publications

References 35 publications

Electronic and optical characteristics of phosphorus-doped two-dimensional hexagonal boron arsenide: the effects of doping concentration and mechanical strain

Electronic and optical characteristics of phosphorus-doped two-dimensional hexagonal boron arsenide: the effects of doping concentration and mechanical strain

NiO/MnFe₂O₄ Nanocomposite Photoluminescence, Structural, Morphological, Magnetic, and Optical Properties: Photocatalytic Removal of Cresol Red under Visible Light Irradiation

Synthesis of Oval-Shaped Bi₂Al₄O₉ Nanoparticles and Their Applications for the Degradation of Acid Green 25 and as Fuel Additives

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Mg1-xNixFe2-xCrxO4 synthesis via hydrothermal route: Effect of doping on the structural, optical, electrical, magnetic and photocatalytic properties

Cited by 16 publications

References 35 publications

Electronic and optical characteristics of phosphorus-doped two-dimensional hexagonal boron arsenide: the effects of doping concentration and mechanical strain

Electronic and optical characteristics of phosphorus-doped two-dimensional hexagonal boron arsenide: the effects of doping concentration and mechanical strain

NiO/MnFe2O4 Nanocomposite Photoluminescence, Structural, Morphological, Magnetic, and Optical Properties: Photocatalytic Removal of Cresol Red under Visible Light Irradiation

Synthesis of Oval-Shaped Bi2Al4O9 Nanoparticles and Their Applications for the Degradation of Acid Green 25 and as Fuel Additives

Contact Info

Product

Resources

About

NiO/MnFe₂O₄ Nanocomposite Photoluminescence, Structural, Morphological, Magnetic, and Optical Properties: Photocatalytic Removal of Cresol Red under Visible Light Irradiation

Synthesis of Oval-Shaped Bi₂Al₄O₉ Nanoparticles and Their Applications for the Degradation of Acid Green 25 and as Fuel Additives