An experimental and theoretical investigation of the structure of synthesized ZnO powder

Kayğili, Ömer; Ercan, I.; Ateş, Tankut; Keser, Serhat; Örek, Cahit; Gündüz, Bayram; Seçki̇n, Turgay; Bañares, Luis

doi:10.1016/j.chemphys.2018.08.021

Cited by 10 publications

(6 citation statements)

References 34 publications

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“…For the purpose of estimating the stress (σ) in the surface, the relation of the σ/Y was written in Eq. [56]. The slope of the βcosθ vs. 4sinθ/Y graphs plotted in Fig.…”

Section: A Xrpd Analysismentioning

confidence: 99%

“…To calculate the crystallite size for each ZnO sample, the following Scherrer (DS) and Williamson-Hall (DWH) equations were used, respectively [51,56] = 0.9 cos (4) cos = 0.9 + 4 sin (5…”

Section: A Xrpd Analysismentioning

confidence: 99%

“…(5) instead of ε [56]. )( ) 2 (7) here the values of s11=7.858×10 −12 m 2 N −1 , s13=−2.206×10 −12 m 2 N −1 , s33=6.940×10 −12 m 2 N −1 and s44=23.57×10 −12 m 2 N −1 are known as the elastic compliances [56]. The slope of the βcosθ vs. 4sinθ/Y graphs plotted in Fig.…”

Section: A Xrpd Analysismentioning

confidence: 99%

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Y Katkılı Piramit ZnO Tozlarının Sentez ve Karakterizasyonu

Kayğili

Kebiroglu

Bulut

et al. 2020

Düzce Üniversitesi Bilim Ve Teknoloji Dergisi

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The present study focuses on the structural changes in ZnO powder induced by doping of a rare earth metal of Y. For this aim, we synthesized four ZnO samples with different Y-content using the combustion reaction method. X-ray powder diffraction (XRPD) technique and scanning electron microscopy (SEM) results confirm that the asinvestigated structural parameters and morphology of the ZnO structure were affected directly by the concentration of Y dopant. For each Y-doped sample, randomly-oriented pyramidal morphology and the formation of a minority phase of Y2O3 were observed. A gradual increase in both lattice parameters and unit cell volume was detected with increasing Y content. All samples were found to be thermally stable in the temperature interval of 25-950 °C.

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“…For the purpose of estimating the stress (σ) in the surface, the relation of the σ/Y was written in Eq. [56]. The slope of the βcosθ vs. 4sinθ/Y graphs plotted in Fig.…”

Section: A Xrpd Analysismentioning

confidence: 99%

“…To calculate the crystallite size for each ZnO sample, the following Scherrer (DS) and Williamson-Hall (DWH) equations were used, respectively [51,56] = 0.9 cos (4) cos = 0.9 + 4 sin (5…”

Section: A Xrpd Analysismentioning

confidence: 99%

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Y Katkılı Piramit ZnO Tozlarının Sentez ve Karakterizasyonu

Kayğili

Kebiroglu

Bulut

et al. 2020

Düzce Üniversitesi Bilim Ve Teknoloji Dergisi

Self Cite

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“…To evaluate the possible peak broadening with crystallite size and lattice strain induced by doping, average crystallite size (D) of the samples was determined by the X-ray line broadening method using the Scherrer equation (D S , equation (2)). In addition to that the Williamson-Hall method (D WH , equation (3)) was applied to investigate the possible strain-induced broadening arising from crystal imperfections and distortion [33]:…”

Section: Xrpd Analysismentioning

confidence: 99%

Structural and optical characterization of Sm-doped ZnO nanoparticles

2019

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Micro-structural changes in zinc oxide (ZnO) nanoparticles induced by the substitution of Zn 2+ in ZnO by a rare earth (RE) metal ion, Sm 3+ , are investigated. Both pristine and Sm-doped ZnO with a nominal doping concentration of 1, 2 and 4% of Sm using a simple wet-chemical synthetic route followed by calcination at a high temperature of 900 • C, are synthesized. Structural investigations are primarily conducted using X-ray powder diffraction (XRPD) and scanning electron microscopy techniques. Evolution of structural parameters (unit cell parameters, average crystallite size, crystallinity percentage, lattice strain, stress, energy density and atomic packing factor) upon Sm doping is investigated together with Rietveld refinement and Le Bail analysis techniques. XRPD data confirmed that the synthesized nanostructures crystallize in a wurtzite hexagonal structure, the dopant Sm is incorporated into the Zn lattice and the annealing treatment plays a crucial role in determining the structural and optical properties of RE-metal-doped nanoparticles. Values of the optical band gap energy estimated from optical absorbance measurements reveal a widening of the band gap.

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“…Using the Y values for each Miller indices observed on the XRD pattern of the asproduced ZnO, the stress (σ) in the surface and energy density (u) were estimated by [32]:…”

Section: Xrd Analysismentioning

confidence: 99%

Green Synthesis, Structural, In Vitro and Vivo Bioactivity Properties of ZnO Nanoparticles for Biomedical Applications

Ibrahim¹,

Albulym²,

Kayğili³

et al. 2019

Preprint

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Owing to fascinating applications of ZnO in modern devices, it is interesting to explore its more features for future devices. Hence, herein, we have synthesized the high quality ZnO spherical nanoparticles (SNPs) through a facile green synthesis route and robust structural and biomedical studies are carried out. Hexagonal phase with 93.2% crystallinity was confirmed through XRD analysis. ZnO nanoparticles were tested for their bioactivities both in vivo (acute cytotoxicity test) and in vitro (Anti-cancer activities on liver (HepG2) and cervical (Hela) cancer cell lines, stimulatory/inhibitory effects on normal rat splenic cells and hemolytic effects on red blood cells). Results showed that ZnO SNPs has no cytotoxic effects on vital organ like liver and has no hemolytic action on red blood cells. ZnO SNPs showed inhibitory consequence on normal rat splenic cells growth at all tested concentrations. ZnO nanoparticles showed an inhibitory effect on HepG2 cell line. While showed stimulatory effect on Hela cell line. Current study presents the synthesized ZnO SNPs as highly applicable in bio-optoelectronics.

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An experimental and theoretical investigation of the structure of synthesized ZnO powder

Cited by 10 publications

References 34 publications

Y Katkılı Piramit ZnO Tozlarının Sentez ve Karakterizasyonu

Y Katkılı Piramit ZnO Tozlarının Sentez ve Karakterizasyonu

Structural and optical characterization of Sm-doped ZnO nanoparticles

Green Synthesis, Structural, In Vitro and Vivo Bioactivity Properties of ZnO Nanoparticles for Biomedical Applications

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