Synthesis and characterizations of nano sized MgO and its nano composite with poly(vinyl alcohol)

Gandhi, S.; Abiramipriya, P.; Pooja, N; Jeyakumari, J. Juliat Latha; Arasi, A. Yelil; Dhanalakshmi, V.; Nair, M. R. Gopinathan; Anbarasan, R.

doi:10.1016/j.jnoncrysol.2010.09.050

Cited by 49 publications

(33 citation statements)

References 20 publications

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“…Compared to nanoparticles prepared by the conventional method, MgO nanoparticles obtained by the microwaveassisted method had higher surface area (63.56 m 2 /g). Currently, the sonochemical method has been extensively used to generate nanoparticles (Gandhi et al, 2011). Ultrasonic waves can stimulate certain novel chemical processes such as nucleation, growth, and collapse of cavitation bubbles formed in the liquid through localized hot spots in the liquid of extremely high temperature (~ 2,700 °C) and pressure (~1,000 atm).…”

Section: Hydrothermal Methodsmentioning

confidence: 99%

“…Ultrasonic waves can stimulate certain novel chemical processes such as nucleation, growth, and collapse of cavitation bubbles formed in the liquid through localized hot spots in the liquid of extremely high temperature (~ 2,700 °C) and pressure (~1,000 atm). Gandhi et al (2011) obtained MgO nanoparticles with sizes from 5 to 10 nm through this ultrasound-assisted hydrothermal method. In our group, MgO nanoparticles were obtained by a sonication-assisted hydrothermal method (Tang et al, 2012;Tang and Shi, 2008).…”

Section: Hydrothermal Methodsmentioning

confidence: 99%

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MgO nanoparticles as antibacterial agent: preparation and activity

Tang

2014

Braz. J. Chem. Eng.

343

161

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-Bacterial pollution is a great risk for human health. Nanotechnology offers a way to develop new inorganic antibacterial agents. Nano-inorganic metal oxide has a potential to reduce bacterial contamination. MgO is an important inorganic oxide and has been widely used in many fields. Many studies have shown that MgO nanoparticles have good antibacterial activity. Therefore, in this paper, the main synthesis methods, antibacterial activity and antibacterial mechanisms of MgO nanoparticles are reviewed.

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Section: Hydrothermal Methodsmentioning

confidence: 99%

Section: Hydrothermal Methodsmentioning

confidence: 99%

MgO nanoparticles as antibacterial agent: preparation and activity

Tang

2014

Braz. J. Chem. Eng.

343

161

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“…were a spherical shape NPs prepared by green synthesis. The particle size was found in the range of 17–30 nm, and no agglomeration was detected .…”

Section: Resultsmentioning

confidence: 88%

“…As for the FTIR spectrum of pristine MgO, a strong broad band was found at 3,306 cm −1 is referred to O–H stretching vibration of water molecules chemically adsorbed on the surface of MgO. The carbonate stretching was also observed at 1,636 cm −1 . A peak around 646 cm −1 was assigned to Mg‐O the metal‐oxygen stretching vibration.…”

Section: Resultsmentioning

confidence: 97%

Improvement of the magnesium battery electrolyte properties through gamma irradiation of nano polymer electrolytes doped with magnesium oxide nanoparticles

Zaky

Eyssa

Sadek

2018

Vinyl Additive Technology

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Nanocomposite polymer electrolytes (NCPE) were prepared using nano polyethylene oxide PEO doped with Magnesium (Mg) salts. Gamma irradiation was utilized to improve the PEO-Mg salts particle sizes. Consequently, Magnesium Oxide (MgO) nanoparticles were prepared by green synthesis and incorporated into PEO-Mg salts to improve their properties toward magnesium battery electrolyte applications. The prepared samples were examined before and after exposures to the radiation doses. Dynamic light scattering (DLS) indicated the particles size of the synthesized nano polymer-Mg salts and MgO nanoparticles. Fourier transform infra-red (FTIR) spectroscopic measurements, transmission electron microscopy (TEM), electrical conductivity, electrochemical properties, and thermal stability of the samples were determined. FTIR indicated the interaction between PEO with Mg salts and MgO nanoparticles which confirmed the structure. The TEM results showed a spherical nanoparticles of MgO and a good dispersion of MgO in PEO matrix. It was found that the irradiation dose 70 kGy gave the best results for the nano polymer-Mg salts (13 nm). The electrical conductivity (σ) evaluated for NCPE, was more than three orders of magnitude of pure PEO. The liquid NCPE of 20 mL MgO NPs at 100 kGy exhibited a maximum conductivity of 3.63 × 10 -3 Scm −1 at room temperature. The increase in temperature caused a slight effect on conductivity, 4.85 × 10 -3 Scm −1 at temperature 250 C, at the same concentration. While un-irradiated sample of 30 mL MgO NPs (σ) reached to 3.8 × 10 −3 Scm −1 then became 5.03 × 10 −3 Scm −1 by increasing temperature. From the cyclic voltammetry results, the polymer electrolytes containing MgO filler, 20 and 30 mL, for irradiated and un-irradiated samples, respectively exhibited wider electrochemical stability window than the others due to the appearance of Mg deposition/desolution peak in CV curve showed that magnesium effectively migrating through electrolytes. Thermogravimetric analysis (TGA) was enhanced by adding Mg salts electrolyte and also MgO nanoparticles to PEO. J. VINYL ADDIT. TECHNOL., 25:243-254, 2019.

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“…Figure 8 shows a broad peak at around 645 cm À1 and between 870 and 894 cm À1 of MgO and MgO/Mg(OH) 2 catalysts, which were associated with metal oxide peak of MgO. [32,33] In addition, from the FTIR results, the peaks of NO 3 À group at approximately 1385 cm À1 were not detected, indicating that the nitrate precursors were fully decomposed into MgO crystal. [34] The changes of catalyst structure upon N 2 pretreatment and isomerization reaction from FTIR results are in good agreement with those obtained from XRD.…”

Section: Sem and Ftirmentioning

confidence: 99%

Effect of N₂ pretreatment on the basicity, structural change, and isomerization activity of MgO and MgO/Mg(OH)₂ catalysts

Suttibut

Suriye

Ayudhya

et al. 2015

Asia-Pacific J Chem Eng

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As revealed by the X-ray diffraction, basicity titration, and Fourier transform infrared spectroscopy results, changes in the structural properties, basicity, and isomerization activities were observed on the MgO catalysts upon N 2 pretreatment at 325°C followed by isomerization reaction at 125°C. These changes became less pronounced when the starting catalysts contained Mg(OH) 2 phase or when the catalysts were pretreated under N 2 at high temperature alone (without reaction). Because of the limited amount of O 2 during 1-butene isomerization, the single-phase MgO could transform into the mixed MgO/Mg(OH) 2 catalysts, and the basicity and the isomerization activity were enhanced. Higher temperature pretreatment (i.e. 527°C), however, led to the changes of Mg(OH) 2 back to the single MgO phase and/or sintering of MgO.

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Synthesis and characterizations of nano sized MgO and its nano composite with poly(vinyl alcohol)

Cited by 49 publications

References 20 publications

MgO nanoparticles as antibacterial agent: preparation and activity

MgO nanoparticles as antibacterial agent: preparation and activity

Improvement of the magnesium battery electrolyte properties through gamma irradiation of nano polymer electrolytes doped with magnesium oxide nanoparticles

Effect of N₂ pretreatment on the basicity, structural change, and isomerization activity of MgO and MgO/Mg(OH)₂ catalysts

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Synthesis and characterizations of nano sized MgO and its nano composite with poly(vinyl alcohol)

Cited by 49 publications

References 20 publications

MgO nanoparticles as antibacterial agent: preparation and activity

MgO nanoparticles as antibacterial agent: preparation and activity

Improvement of the magnesium battery electrolyte properties through gamma irradiation of nano polymer electrolytes doped with magnesium oxide nanoparticles

Effect of N2 pretreatment on the basicity, structural change, and isomerization activity of MgO and MgO/Mg(OH)2 catalysts

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Product

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Effect of N₂ pretreatment on the basicity, structural change, and isomerization activity of MgO and MgO/Mg(OH)₂ catalysts