Synthesis and characterization of magnesium Oxide nanoparticles by sol-gel method

2020 ◽  
Vol 3 (3) ◽  
Author(s):  
Jegadeeswari A ◽  
Nivetha S

Magnesium oxide was hygroscopic solid mineral that occurs naturally as periclase.Magnesium oxide had high thermal conductivity; it gets heated when the electricity was passed through it. Magnesia crucible had a stability of 2400°C in air, 1700°C in reducing atmosphere. Magnesium oxide nanoparticles were obtained from the mixture of magnesium nitrate as precursor and sodium hydroxide as precipitating agent by sol-gel method. Finally,the resultant white crystalline powder of MgO was annealed at various temperatures of 80°C, 135°C and 180°C. The analytical studies (XRD, SEM FTIR, EDAX) reveals the morphological characterization of MgO nanoparticles. The Scanning Electron Microscopy (SEM) indicates the structures of MgO nanoparticles. The crystal size of MgO nanoparticles was obtained by X-Ray Diffraction (XRD). The optical properties of the sample were obtained by UV- Visible spectroscopy. Fourier Transform infrared spectroscopy indicates powdered composition of the sample. EDAX indicates elementary composition of the MgO nanoparticles.

Author(s):  
Jessica Veronica ◽  
◽  
Lidia Intan Febriani ◽  
Citra Nurhashiva ◽  
Risti Ragadhita ◽  
...  

The purpose of this study was to determine the feasibility of a project for the manufacture of magnesium oxide nanoparticles using the sol-gel method by evaluating both technically and economically. Evaluation from the technical side is determined by stoichiometric calculations and evaluation of the initial factory design, while the evaluation from the economic side is determined by several parameters to determine the benefits of the project to be established (Gross Profit Margin, Internal Rate Return, Break-Even Point, Payback Period, and Cumulative Net Present Values). Some of these economic evaluation parameters were analyzed to inform the production potential of magnesium oxide nanoparticles, such as determining the level of profitability of a project (Gross Profit Margin), predicting the length of time required for an investment to return the initial capital expenditure (Payback Period), predicting the condition of a production project in the form of a production function in years (Cumulative Net PresentValue), etc. The results of the technical analysis show that this project can produce 1,425 kg of magnesium oxide nanoparticles per day and the total cost of the equipment purchased is 45,243 USD. Payback Period analysis shows that the investment will be profitable after more than three years. To ensure project feasibility, the project is estimated from ideal to worst-case conditions in production, including salary, sales, raw materials, utilities, as well as external conditions such as taxes


2012 ◽  
Vol 545 ◽  
pp. 157-160 ◽  
Author(s):  
Nurhanna Badar ◽  
Nor Fadilah Chayed ◽  
Rusdi Roshidah ◽  
Norashikin Kamarudin ◽  
Norlida Kamarulzaman

In this work, the band gap energies of magnesium oxide (MgO) were investigated to see if calcination time affects the band gap energies of the MgO. MgO nanomaterials have been prepared by a sol-gel method. MgO precursors produced were calcined at a temperature of 600 °C for 24 hours and 48 hours. The structural characterization of samples is achieved using X-Ray Diffraction (XRD) and the morphology as well as particle size of MgO were examined by Field Emission Scanning Electron Microscopy (FESEM). UV-Vis NIR spectroscopy was used to determine the band gap energies of the materials. From the results, the band gap energy of the MgO with a longer heating time exhibited a higher value.


2015 ◽  
Vol 44 (10) ◽  
pp. 3704-3709 ◽  
Author(s):  
Zohra Nazir Kayani ◽  
Maryam Umer ◽  
Saira Riaz ◽  
Shahzad Naseem

2017 ◽  
Vol 511 ◽  
pp. 89-98 ◽  
Author(s):  
M. Yeganeh ◽  
N. Shahtahmasebi ◽  
A. Kompany ◽  
M. Karimipour ◽  
F. Razavi ◽  
...  

2014 ◽  
Vol 911 ◽  
pp. 205-209 ◽  
Author(s):  
Y Iriani ◽  
D.F. Saputri ◽  
S. Hadiati ◽  
A.H. Ramelan ◽  
V. I Variani

Depositions of BaZr0.10Ti0.90O3and BaZr0.10Ti0.90O3thin films doped with strontium (Sr) have been growth on Pt/Si substrate using the sol gel method prepared with spin coater. Mole percent of Sr is varied to 1%, 3% and 5%, repectively. The characterization of its micro structure showed that the diffraction angle is shifted to the right if the mole percent of the Sr doped is increased. We found that the particle size of BZT with Sr dopant is bigger than BZT without dopant Sr as shown in the morphological characterization result. The thickness of BaZr0.10Ti0.90O3and BaZr0.10Ti0.90O3thin films doped with Sr are about 400 nm. The obtained hysteresis curves of BaZr0.10Ti0.90O3and BaZr0.10Ti0.90O3thin films shown that the saturation values are similar to each other, however the remnant polarization and coercive field geting smaller along with the increasing of mole percent of Sr dopant.


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