Precipitator concentration-dependent opto-structural properties of MgO nanoparticles fabricated using natural brine

Yousefi, Sadegh; Ghasemi, Behrooz

doi:10.1007/s42452-020-2645-z

Cited by 16 publications

(6 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Further, with increasing Pb content, average crystallite size deduced from XRD varies as compare to particle size analyzed through FESEM. This reveals that polycrystalline nature of nanocrystals approaching toward nearly single crystalline nature [48,57].…”

Section: Methodsmentioning

confidence: 87%

On the structural and thermophysical study of Pb-doped Se-Te-In nanochalcogenide alloys

Anjali

Patial

Thakur

2020

Journal of Asian Ceramic Societies

View full text Add to dashboard Cite

Pb additive nanochalcogenide materials are becoming well-known materials in modern optoelectronics. In this paper, multicomponent Se-Te-In-Pb nanochalcogenide alloys are prepared using melt-quenching technique. The physical and submicron structural features of investigated system are reported and discussed. Characteristic peaks in x-ray spectra signify nanorange of each sample under investigation validated by FESEM and HRTEM. Influence of Pb content on examined composition has been deliberated with respect to their physical characterization namely average coordination number (), mean bond energy (), crosslinking density (X), lone-pair electrons (L), fraction of floppy modes (f), constraints (N c ), electronegativity (χ), cohesive energy (CE), glass transition temperature (T g ), and heat of atomization (H s ). It is realized that addition of Pb content, enhanced N c , X, and . Whereas, , L, f, χ, CE, T g , and H s decrease with Pb addition. Cohesive energy is analyzed through chemical-bond approach. T g is estimated by Tichy-Ticha and Lankhorst approaches and are found in consistent with experimental results. The band gap of investigated system has been calculated theoretically by Shimakawa's relation and deduced results are analyzed through cohesive energy, electronegativity, and average single-bond energy. Also the compositional dependence of experimentally derived optical band gap has been analyzed and discussed.

show abstract

Section: Methodsmentioning

confidence: 87%

On the structural and thermophysical study of Pb-doped Se-Te-In nanochalcogenide alloys

Anjali

Patial

Thakur

2020

Journal of Asian Ceramic Societies

View full text Add to dashboard Cite

show abstract

“…Similarly, the resistivity of ITO nanoparticles decreases continuously with the decrease in N In /N a . It has been reported that the concentration of precipitant has an influence on growth rate and formation rate of crystal [35]. Sufficient precipitant not only ensures the complete precipitation of metal ions but also makes the particle size of R3 more uniform than others, which is conducive to the decrease in resistivity.…”

Section: Variance Analysis Of Orthogonal Experiments Resultsmentioning

confidence: 99%

Optimization Preparation of Indium Tin Oxide Nanoparticles via Microemulsion Method Using Orthogonal Experiment

Jiang¹,

Liu²,

Zhai³

et al. 2021

Crystals

View full text Add to dashboard Cite

Indium tin oxide (ITO), an experimentally friendly transparent conducting oxide (TCO), has attracted great attention in the photoelectric field due to its intrinsically low resistivity and high transparency. In this work, the experimental conditions of preparing ITO nanoparticles using the microemulsion method were optimized by an orthogonal experiment. The optimal experimental conditions were obtained: mass ratio of the surfactant (AEO-3, MOA-5), a co-surfactant (n-propyl alcohol) of 5:3, molar ratio of indium and ammonia of 1:20, calcination temperature of 700 °C and calcination time of 4 h. Subsequently, the influence from process variables on the resistivity was researched systematically. The results demonstrated that the calcination temperature had a great effect on the resistivity; the resistivity reduced from 11.28 to 2.72 Ω·cm with the increase in the calcination temperature from 500 to 700 °C. Ultimately, ITO nanoparticles were prepared and systematically characterized under the optimal experimental conditions. The particles with a size of 60 nm were attributed to the cubic ITO crystal phase and showed low resistivity of 0.3675 Ω·cm. Significantly, ITO nanoparticles with low resistivity were obtained using the microemulsion method, which has potential application in the field of ITO nanoparticle preparation.

show abstract

“…A comparison of the doping specimens demonstrates that all spectra have identical signals since they all comprise the same key framework part, the MgO-NPs structures [52,53] nearly slight variation in the band's intensity in 3450-1650 cm -1 . This can be attributed to -OH stretching frequency assigned due to the hydroxyl group present in the oxide [47,54].…”

Section: Ftir Spectroscopy For (Mg(1-x)pbxo)-nps Specimensmentioning

confidence: 97%

Structural Characterization of (Mg(1-x)pbxO)-NPs by Modified Pechini Method

Najem¹,

Rasin²,

Edrees³

2022

ETJ

View full text Add to dashboard Cite

 The structure revealed that all the specimens have identical space groups and index well to a cubic structure.  Crystallite size was increased with increasing the fraction of doping except for (Mg0.97Pb0.03O) due to the formation of PbO oxide.  The molecular vibration of the pure and doped specimens has the same framework.  As the incorporation of Pb 2 + ions increased, the bands got broader, and the intensities increased in the range of 800-400 cm -1 . The structural characterization was discussed in the present paper of the pure MgO nanoparticles and the doped (Mg(1-x)pbxO) nanoparticles specimens, where (0 ≤ x ≤ 0.03). The modified Pechini method was used to prepare all the specimens. From (DTA), the convenient temperature of decomposition from Mg(OH)2 to MgO was above 375°C. The structure investigation (XRD) revealed that all the specimens have identical space groups and index well to cubic structures. The obtained crystallite size by Scherrer's equation was increased with increasing the fraction of doping except for (Mg0.97Pb0.03O) due to the formation of PbO oxide. The molecular vibration by FTIR demonstrated that all the pure and doped specimens have the same framework. As the incorporation of Pb2+ ions increases, the bands get broader, and the intensities increase in the ranging 800-400 cm-1 due to vibrations of O-Mg and O-Pb bands, respectively.

show abstract

Precipitator concentration-dependent opto-structural properties of MgO nanoparticles fabricated using natural brine

Cited by 16 publications

References 36 publications

On the structural and thermophysical study of Pb-doped Se-Te-In nanochalcogenide alloys

On the structural and thermophysical study of Pb-doped Se-Te-In nanochalcogenide alloys

Optimization Preparation of Indium Tin Oxide Nanoparticles via Microemulsion Method Using Orthogonal Experiment

Structural Characterization of (Mg(1-x)pbxO)-NPs by Modified Pechini Method

Contact Info

Product

Resources

About