Effect of lattice strain on structure, morphology, electrical conductivity and magneto-optical and catalytic properties of Ni-doped Mn3O4 nano-crystallites synthesized by microwave route

Raja, G.; Arivithamani, Nallathambi; Prakasam, A.; Gopinath, S.; Ragupathi, C.; Narayanan, S. Sriman; Tamizhdurai, P.; Rajendran, Kumaran; Alsaiari, Norah Salem; Abualnaja, Khamael M.; Ouladsmane, Mohamed

doi:10.1016/j.jscs.2022.101440

Cited by 14 publications

(5 citation statements)

References 40 publications

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“…Doping can introduce defects and strain into the lattice, leading to a decrease in crystalline size. [ 18 ] The crystallite size decreases as dislocation density, microstrain, and stacking defects rise. Table 2 presents the crystallite properties of all samples, which were evaluated using the following equations: [ 19 ]

$$\text{Dislocation density } \left(\right.

…”

Section: Resultsmentioning

confidence: 99%

Synergistic Enhancement of Photocatalytic and Antifungal Activities in Microwave‐Assisted ZnO/Fe‐Doped Bi₂O₃ Nanocomposites

Mane,

Dake,

Raskar

et al. 2024

Physica Status Solidi (a)

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Herein, the successful synthesis of ZnO/Fe‐doped Bi2O3 nanocomposite through a microwave‐assisted coprecipitation method is reported. The fabricated materials are comprehensively characterized using X‐ray diffraction, field‐emission scanning electron microscopy, energy dispersive X‐ray analysis, UV–vis, vibrating sample magnetometer, and photoluminescence techniques. The results of the investigation unveil a reduction in crystalline size, a low bandgap of 1.7 eV, and notable improvements in magnetization and surface area (50.63 m2 g−1) upon the incorporation of ZnO and Fe doping into Bi2O3. Remarkably, the ZnO/5% Fe‐doped Bi2O3 composite demonstrates 86.34% degradation of methylene blue (MB) dye within 60 min. Furthermore, this composite exhibits significant antifungal activity, as evidenced by a zone of inhibition diameter of 20 mm against Aspergillus flavus. Ongoing studies are investigating the impact of pH, inorganic ions, scavenger mechanisms, and MB degradation. These findings underscore the synergistic effects of ZnO and Fe, which enhance the absorption of photons that decrease the recombination rate and increase the charge transfer of Bi2O3, contributing to the improved material properties of the ZnO/5% Fe‐doped Bi2O3 composite. This study paves the way for further exploration of the multifunctional properties of ZnO/Fe‐doped Bi2O3 nanocomposites in diverse environmental and biomedical applications.

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$$\text{Dislocation density } \left(\right.

…”

Section: Resultsmentioning

confidence: 99%

Synergistic Enhancement of Photocatalytic and Antifungal Activities in Microwave‐Assisted ZnO/Fe‐Doped Bi₂O₃ Nanocomposites

Mane,

Dake,

Raskar

et al. 2024

Physica Status Solidi (a)

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“…This suggests that Ni doping can reduce the nucleation rate of Mn 3 O 4 and in turn, can subsequently influence the size of the particles. 47 Microstrain values indicate that with increasing the concentration of dopants, the internal stress is increased. But in the case of 10% doping concentration, the crystallite size suddenly increases which means that it experiences lower internal stress due to the formation of mixed phases.…”

Section: Resultsmentioning

confidence: 99%

Phase tunable nickel doped Mn₃O₄ nanoparticle synthesis by chemical precipitation: kinetic study on dye degradation

Uddin,

Abdur,

Hossain

et al. 2024

Nanoscale Adv.

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“…Similarly, microstrain and dislocation density were calculated and are displayed in Table 1. Figure 4d illustrates the estimated crystallite size varies inversely with dislocation density and peak width; it increases linearly with microstrain, increasing the material strength due to the high effect of crystalline size on the comprehensive stress of the Mn 3 O 4 NPs 51 …”

Section: Resultsmentioning

confidence: 99%

“…Figure 4d illustrates the estimated crystallite size varies inversely with dislocation density and peak width; it increases linearly with microstrain, increasing the material strength due to the high effect of crystalline size on the comprehensive stress of the Mn 3 O 4 NPs. 51 For tetragonal system, the lattice constant can be calculated as…”

Section: Structural and Crystallographic Studiesmentioning

confidence: 99%

Biological synthesis of manganese oxide nanoparticles from aerial parts of Prunus dulcis and their in vitro investigation of medical properties

Aarthi,

Anitha

2023

Applied Organom Chemis

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The field of functional nanohybrid material is an emerging research area in material science due to its vast range of applications. The use of novel technology and innovative therapeutics has led to potent applications, including controlling the size of nanoparticles (NPs). This has resulted in a novel report on the synthesis of manganese oxide NPs using aerial parts of queen of roses Prunus dulcis (almond) leaves, seed, and seed oil (using Clevenger apparatus), which functions as a reducing agent. Manganese sulfate was used as a precursor in the synthesis process. The synthesized nanohybrid Mn3O4 NPs were studied using different characteristics techniques such as X‐ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and energy‐dispersive X‐ray spectroscopy (EDX). The photoluminescence spectra display the blue emission ranging from 483.2 to 486.5 nm. The biosynthesized Mn3O4 NPs were tested for bactericidal activity and showed tremendous inhibition against gram‐positive and gram‐negative bacteria. The antioxidant activity of Mn3O4 NPs was enhanced using 2,2‐diphenyl‐1‐picrylhydrazyl (DPPH) assay, which revealed the higher activity of Mn3O4 NPs from P. dulcis leaf extract. In vitro cytotoxicity of hybrid Mn3O4 NPs was examined using 3‐(4,5‐dimethylthiazol‐2‐yl)‐2,5‐diphenyltetrazolium bromide (MTT) assay against cervical cancer (HeLa cell line) with different concentrations. The results showed an IC50 value of 61.97 μg mL−1 for Mn3O4 NPs from P. dulcis leaf extract. In general, the phytosynthetic route with synergistic effect of nanohybrid demonstrated an interaction with cancer cells, highlighting a pioneering optimum approach in synthesis of Mn3O4 NPs from aerial parts of P. dulcis.

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Effect of lattice strain on structure, morphology, electrical conductivity and magneto-optical and catalytic properties of Ni-doped Mn3O4 nano-crystallites synthesized by microwave route

Cited by 14 publications

References 40 publications

Synergistic Enhancement of Photocatalytic and Antifungal Activities in Microwave‐Assisted ZnO/Fe‐Doped Bi₂O₃ Nanocomposites

Synergistic Enhancement of Photocatalytic and Antifungal Activities in Microwave‐Assisted ZnO/Fe‐Doped Bi₂O₃ Nanocomposites

Phase tunable nickel doped Mn₃O₄ nanoparticle synthesis by chemical precipitation: kinetic study on dye degradation

Biological synthesis of manganese oxide nanoparticles from aerial parts of Prunus dulcis and their in vitro investigation of medical properties

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Effect of lattice strain on structure, morphology, electrical conductivity and magneto-optical and catalytic properties of Ni-doped Mn3O4 nano-crystallites synthesized by microwave route

Cited by 14 publications

References 40 publications

Synergistic Enhancement of Photocatalytic and Antifungal Activities in Microwave‐Assisted ZnO/Fe‐Doped Bi2O3 Nanocomposites

Synergistic Enhancement of Photocatalytic and Antifungal Activities in Microwave‐Assisted ZnO/Fe‐Doped Bi2O3 Nanocomposites

Phase tunable nickel doped Mn3O4 nanoparticle synthesis by chemical precipitation: kinetic study on dye degradation

Biological synthesis of manganese oxide nanoparticles from aerial parts of Prunus dulcis and their in vitro investigation of medical properties

Contact Info

Product

Resources

About

Synergistic Enhancement of Photocatalytic and Antifungal Activities in Microwave‐Assisted ZnO/Fe‐Doped Bi₂O₃ Nanocomposites

Synergistic Enhancement of Photocatalytic and Antifungal Activities in Microwave‐Assisted ZnO/Fe‐Doped Bi₂O₃ Nanocomposites

Phase tunable nickel doped Mn₃O₄ nanoparticle synthesis by chemical precipitation: kinetic study on dye degradation