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Magnesium oxide nanoparticles-Synthesis and Charecterisation

Magnesium oxide nanoparticles (MgONPs) have been synthesised by mixing aqueous solutions of magnesium sulphate and sodium hydroxide. The resulting precipitate of magnesium hydroxide was heated strongly to get dry precipitate. Then it was heated strongly at 300℃ for hours. The resulted magnesium oxide nanoparticles were characterized by SEM and EDAX. The MgONPs appeared in the form of plates and clusters. The size was in the range of 128 to 187 nm.

Magnesium oxide nanoparticles were prepared by precipitation method. The precursor of magnesium
oxide nanoparticles (MgONPs), magnesium hydroxide was first prepared. Then it was heated at high
temperature to get the MgONPs.

Preparation of the precursor

5g of magnesium sulphate (MgSO4) was dissolved in 100ml of distilled water and5g of sodium
hydroxide (NaOH) pellet was dissolved in 100ml of distilled water.50ml of magnesium sulfate solution
and50ml of sodium hydroxide solution were mixed. The solution was stirred with amagnetic stirrer for
2h. Magnesium hydroxide was precipitated. The solution was heated at 100 ℃ for 2 hours in a hot air
oven. The precursor, magnesium hydroxide was produced.

Preparation of Magnesium oxide nanoparticles

The precursor was taken in a silica crucible and heated in a muffle furnace at 300 ℃ for 3 hours.
MgONPs were produced. They were characterized by SEM and EDAX.

Synthesis and Charecterisation.PDF


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