Indexing the Diffraction Patterns and Investigating the Crystal Structure of Pb-doped Strontium Ferrites

Ullah, Zaka; Atiq, Shahid; Naseem, Shahzad

doi:10.3329/jsr.v5i2.11578

Cited by 16 publications

(4 citation statements)

References 14 publications

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“…The same behavior has also been reported in literature [19,21]. In addition, it has intensively been investigated that the dielectric properties of ferrites are dependent upon several other factors, including the method of preparation, chemical composition, grain structure and grain size of the ferrite nanoparticles [13]. This may be explained qualitatively by the fact that electronic exchange between ferrous and ferric ions in ferrites cannot follow the frequency of externally applied alternating field beyond a critical frequency value [22].…”

Section: Frequency Dependent Dielectric Propertiessupporting

confidence: 48%

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Frequency and Temperature Dependent Dielectric Response of Fe3O4 Nano-crytallites

et al. 2014

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Magnetite nanoparticles have been prepared by using sol-gel auto combustion technique. The samples are prepared by using different concentrations of fuel. Structural characterization has been done using X-Ray diffraction technique and it was observed that fuel concentration can affect the structural properties of Magnetite nanoparticles. The dielectric properties for all the samples such as dielectric constant (ɛ ′), dielectric tangent loss (tan δ) and dielectric loss factor (ɛ ″) have been studied as a function of frequency and temperature in the range 10 Hz-20 MHz and it was found that these nanoparticles can be used in microwave devices because of their good dielectric behavior.

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Section: Frequency Dependent Dielectric Propertiessupporting

confidence: 48%

“…In the present study sol-gel auto combustion technique has been used to prepare the nanoparticles. It is a simple technique, a significant saving in time and energy consumption over the traditional methods besides this method offers improved structural characteristics and more homogeneity [13].…”

Section: Introductionmentioning

confidence: 99%

Frequency and Temperature Dependent Dielectric Response of Fe3O4 Nano-crytallites

et al. 2014

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“…An investigation on [Mg 3 O 3 (CO 2 ) 3 ] ∞ structure has received less attention since engineering researchers have been focusing more on the adsorption performance of this material. The same investigation was earlier conducted by Ullah et al (2013) for crystal structure of Pb-doped strontium ferrites [9].…”

Section: Introductionmentioning

confidence: 59%

Indexing PXRD Structural Parameters of Graphene Oxide-Doped Metal-Organic Frameworks

2019

IJRTE

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A family of metal-organic framework, [Mg3O3(CO2)3]∞ nanocrystallites which are also known as Mg-MOF-74, were synthesized by solvothermal method at high temperature under autogenous pressure. The graphene oxide was embedded into the framework via in-situ synthesis method to form a composite structure of Mg-MOF-74@nGO. n was varied from 0.1 to 0.6 wt% of the weight of pristine material. The synthesized samples were examined under Powder X-Ray Diffraction analysis to affirm their crystalline structure. Further studies were conducted by indexing the lattice parameters of the hexagonal crystals. The volume of unit cell and Scherrer’s crystallite size were also determined to study the effect of GO loading amount on their grown dimensions. The results showed that the presence of GO in the range of 0.1-0.6 wt% did not influence the dimension of the crystal except a slight expansion in vertical direction with the increment of GO loading.

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“…where m is mass, V is volume, and r is the radius of the pellet [16]. Table 2 shows the bulk densities of the samples Mn2O3, CuO and Cu2Mn3O8 in g/m 3 .…”

Section: Bulk Densitymentioning

confidence: 99%

Detailed Analysis of Crystal Structure and Optical Properties of Green Synthesized Nanoparticles: Application for Photocatalyst Degradation of Methylene Blue

et al. 2022

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We report the green chemistry reduction approach method for the synthesis of Manganese Oxide nanoparticles (MnO NPs), Copper Oxide nanoparticles (CuO NPs) and Manganese-doped Copper Oxide nanoparticles (Mn-doped CuO Nps). Aqueous extract from the seeds was used as reducing and capping agents. The detailed crystal structure analysis was investigated; crystallite size, crystallinity, morphological index, x-ray density, bulk density, specific surface area, porosity, Lorentz factor, Lorentz polarization factor and other parameters were calculated. Simple EDX mapping reveals the presence of Mn, Cu, O and C. FTIR analysis was used to determine the bond length of a nanocomposite. In the visible area, nanoparticles have higher optical absorption, with bandgaps varying from 1.79 (MnO), 2.18 eV (CuO) and 1.72 eV (Mn-doped CuO). After 90 min, the photodegradation rate of Mn-doped CuO nanocatalysts was 93.73 % while using a smaller amount of catalyst (0.1 g) at pH 7. The pseudo-first-order MB photocatalytic decomposition kinetic model has a high correlation coefficient value (R2 > 0.95). It was found that Mn-doped CuO NPs have higher photocatalytic efficiency and can be used as potential photocatalysts for industrial dye degradation. HIGHLIGHTS Green synthesis of Mn, Cu, and Mn-doped Cu nanoparticles by Bambusa seeds extract Characterized via XRD (crystal structure), UV-Vis Diffuse Reflectance spectra (UV-DRS), FT-IR (bond length), and FESEM-EDS analysis Photocatalytic degradation of organic methylene blue dye using Mn-doped CuO nanoparticles GRAPHICAL ABSTRACT

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Indexing the Diffraction Patterns and Investigating the Crystal Structure of Pb-doped Strontium Ferrites

Cited by 16 publications

References 14 publications

Frequency and Temperature Dependent Dielectric Response of Fe<sub>3</sub>O<sub>4</sub> Nano-crytallites

Frequency and Temperature Dependent Dielectric Response of Fe<sub>3</sub>O<sub>4</sub> Nano-crytallites

Indexing PXRD Structural Parameters of Graphene Oxide-Doped Metal-Organic Frameworks

Detailed Analysis of Crystal Structure and Optical Properties of Green Synthesized Nanoparticles: Application for Photocatalyst Degradation of Methylene Blue

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