Glass-ceramic nanoparticles in the Ag2O–TeO2–V2O5 system: Antibacterial and bactericidal potential, their structural and extended XRD analysis by using Williamson–Smallman approach

Shahmoradi, Yazdan; Souri, Dariush; Khorshidi, Mehdi

doi:10.1016/j.ceramint.2018.12.133

Cited by 28 publications

(6 citation statements)

References 19 publications

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“…The shape of the peak always plays a key role in the computation of instrumental broadening, and the formulas relating to peak shape are listed below. 38 When the peak has a conventional Gaussian form, β (FWHM) is given by relation:…”

Section: Resultsmentioning

confidence: 99%

“…All three processes result in the decrease in average crystallite size. 37,38 To extract the crystallographic characteristics of the produced samples, FULLPROF software is used to analyze all XRD patterns using the Rietveld refinement approach. Thermal parameters, atomic fractional position coordinates, and the zero correction parameter are changed during refining.…”

Section: Resultsmentioning

confidence: 99%

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Effect of Pr and Mn co-substitution on Structural and Optical Properties of Bismuth Ferrite

Rani,

Shekhar,

Dev

et al. 2024

ECS J. Solid State Sci. Technol.

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One of the most recent developments in the area of modern optics arises due to perovskite materials. The ABO3 perovskite materials like bismuth ferrite is an appealing alternative for various optical devices. Hence, in the present study, Praseodymium (Pr) and Manganese (Mn) co-substituted bismuth ferrite ceramics are prepared by the modified sol-gel method and the correlation between structural and optical properties with the variation in co-substitution concentration has been investigated. Rietveld refinement of X-ray diffraction patterns demonstrates a structural phase change in crystal symmetry from rhombohedral to orthorhombic phase with the increase in concentration for x ≥ 0.025. Lattice deformation in the co-substituted samples is confirmed by Fourier transform infrared and Raman spectra. UV-Vis diffuse reflectance spectra confirm the strong absorption of light in the visible region. Furthermore, optical energy band gap decreases from 1.95 to 1.50 eV with increase in concentration from x = 0.000 to x = 0.100. The refractive index attains the maximum value i.e. 6.16 for x = 0.025 whereas it drops to minimum value of 4.06 for x = 0.100. This demonstrates that the structural modification in bismuth ferrite can be used to tune its optical parameters for the device applications.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Effect of Pr and Mn co-substitution on Structural and Optical Properties of Bismuth Ferrite

Rani,

Shekhar,

Dev

et al. 2024

ECS J. Solid State Sci. Technol.

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“…[ 55 ] Equation () is used to calculate the displacement density

δ^{W - S}

(ratio of lattice strain to displacement energy into the structure),

D^{W - S}

is the apparent magnitude, and

≪ ε^{2} ≫

is the mean square grid strain. [ 56–58 ]

β^{2} = \frac{λ Δ false(2 θ false)}{2 π^{2} D^{W - S} cos false(θ false)} + 4 {tan}^{2} false(θ false) < ε^{2} >^{W - S}

…”

Section: Resultsmentioning

confidence: 99%

CdTe/CdS Core–Shell Quantum Dots: Synthesis and Applications as a Heavy Metal Ion's Fluorescence Sensor and Photocatalyst for Photodegradation of Organic Dyes

pourtakallo

Molaei

Khanzadeh

2023

Physica Status Solidi (a)

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Herein, a simple method for the growth of the CdS shell around CdTe QDs and the formation of the CdTe/CdS core–shell structure is proposed. The synthesized QDs are characterized using Raman, Fourier‐transform infrared spectroscopy (FTIR), X‐ray diffraction (XRD), transmission electron microscopy (TEM), photoluminescence (PL), and UV–vis analyses. XRD patterns confirm the formation of a core–shell‐type structure and particle sizes, lattice strain (ε), and displacement density (δ) are calculated using Williamson–Hall (W–H) and Williamson–Smallman (W–S) approaches. Obtained results show that the CdTe/CdS QDs are spherical with an average crystal size about 5.41 nm. In this work, derivation of absorption spectrum fitting (DASF) is used for the determination of the optical bandgap of the prepared QDs. Prepared CdTe/CdS QDs are applied for the detection of the heavy metal ions and photodegradation of the different organic dyes in aqueous media. The prepared QDs show good performance for the detection of mercury ions (Hg2+) in water with superior selectivity and for photodegradation of the methylene orange (MO) under UV light. The comparison of the obtained results for CdTe/CdS with bare CdTe QDs shows that the core–shell CdTe/CdS QDs have higher sensitivity and enhanced photocatalyst properties compared to the CdTe QDs.

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“…The dislocation density describes the charge imbalances in a crystal, oxygen vacancies, and the possibility of defects and dislocations in a crystal and was calculated by using eqn (5). 47 In this equation, δ is the dislocation density, whereas D is the particle size calculated using the W–H method.…”

Section: Resultsmentioning

confidence: 99%

Investigation of the structural and electrochemical properties of a ZnO–SnO₂ composite and its electrical properties for application in dye-sensitized solar cells

et al. 2023

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Glass-ceramic nanoparticles in the Ag2O–TeO2–V2O5 system: Antibacterial and bactericidal potential, their structural and extended XRD analysis by using Williamson–Smallman approach

Cited by 28 publications

References 19 publications

Effect of Pr and Mn co-substitution on Structural and Optical Properties of Bismuth Ferrite

Effect of Pr and Mn co-substitution on Structural and Optical Properties of Bismuth Ferrite

CdTe/CdS Core–Shell Quantum Dots: Synthesis and Applications as a Heavy Metal Ion's Fluorescence Sensor and Photocatalyst for Photodegradation of Organic Dyes

Investigation of the structural and electrochemical properties of a ZnO–SnO₂ composite and its electrical properties for application in dye-sensitized solar cells

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Glass-ceramic nanoparticles in the Ag2O–TeO2–V2O5 system: Antibacterial and bactericidal potential, their structural and extended XRD analysis by using Williamson–Smallman approach

Cited by 28 publications

References 19 publications

Effect of Pr and Mn co-substitution on Structural and Optical Properties of Bismuth Ferrite

Effect of Pr and Mn co-substitution on Structural and Optical Properties of Bismuth Ferrite

CdTe/CdS Core–Shell Quantum Dots: Synthesis and Applications as a Heavy Metal Ion's Fluorescence Sensor and Photocatalyst for Photodegradation of Organic Dyes

Investigation of the structural and electrochemical properties of a ZnO–SnO2 composite and its electrical properties for application in dye-sensitized solar cells

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Product

Resources

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Investigation of the structural and electrochemical properties of a ZnO–SnO₂ composite and its electrical properties for application in dye-sensitized solar cells