Synthesis of Magnesium Oxide Nanoparticles by Sol-Gel Process

Abstract

Cubic shaped Magnesium oxide nanoparticles were successfully synthesized by sol-gel method using magnesium nitrate and sodium hydroxide at room temperature. Hydrated Magnesium oxide nanoparticles were annealed in air at 300 and 500°C. X-ray diffraction patterns indicate that the obtain nanoparticles are in good crystallinity, pure magnesium oxide periclase phase with (200) orientation. Morphological investigation by FESEM reveals that the typical sizes of the grown nanoparticles are in the range of 50-70nm. Powder composition was analyzed by the FTIR spectroscopy and the results confirms that the conversion of brucite phase magnesium hydroxide in to magnesium oxide periclase phase was achieved at 300°C.The Thermo-gravimetric analysis showed the phase transition of the synthesized magnesium oxide nanoparticles occurs at 280-300°C.

Effect of the nanoparticles in the stability of hydrolyzed polyacrylamide/resorcinol/formaldehyde gel systems for water shut‐off/conformance control applications

“…In the case of nanoparticles, it can be observed that the similarity between wavelength vibrations around 3400 cm −1 , which represents the presence of the hydroxyl group (OH) in the samples, is perhaps due to water adsorption . Also, vibrations around 1600 cm −1 correspond to CO 2 and humidity . Particularly for Al 2 O 3 nanoparticles, the band between 830 cm −1 and 400 cm −1 represents AlOAl bond vibration .…”

“…Alumina (Al 2 O 3 ) nanoparticles were supplied by Petroraza S.A.S (Sabaneta, Colombia). Magnesium oxide (MgO) nanoparticles were synthesized through the sol–gel process using magnesium nitrate (MgNO 3 ·6H 2 O, 99%, Merck KGaA, Darmstadt, Germany) as the precursor. Chromium oxide (Cr 2 O 3 ) nanoparticles were synthesized by the electrochemical method in the presence of potassium dichromate (99.5%, Fisher Scientific, Fair Lawn, NJ) and sulfuric acid (95–97%, Merck KGaA).…”

“…Stirring was continued for 30 min to assure the reaction time. The precipitate was filtered and then washed with methanol to remove impurities, dried in a vacuum oven at 100 °C and finally calcinated at 450 °C …”

Investigation of MgO Powders Synthesized by Liquid-Phase Method

“…The MgO has good additive properties in heavy fuel oil because of high oil dispersion ability and large specific surface area and also bactericidal performance in the aqueous environments due to the formation of super oxide [6,7]. There are various techniques which are used to synthesize the MgO nanostructures by using methods such as precipitation [8], solvothermal [9], chemical vapour deposition [10], electrochemical [11], sonochemical [12], microwave [13], pulse laser deposition [14], laser ablation [15], sol-gel method [16] and carbothermic reduction [17].…”

X-ray diffraction analysis of the effect of annealing temperature on the microstructure of magnesium oxide nanopowder

“…(9), the slope and intercept of M 4 (g)/g 2 versus g gives the values of D A and ρ * hkl , respectively. to the magnesium nitrate solution until the pH of mixture reached 12.5 [46]. The suspension was stirred about 30 minutes at room temperature with magnetic stirring device.…”