Sunday, 2 February 2020

Synthesis of Iron (III) Oxide (Fe2O3) Nanoparticles

Synthesis of Iron (III) Oxide (Fe₂O₃) Nanoparticles
    Iron(III) chloride (FeCl3), Urea (CH4N2O), Water
  2. STEP 1.
    Take Iron(III) chloride (1g) in 50 ml of water and set the temperature at 80°C.
  3. STEP 2.
    Make another solution by dissolving 1g Urea in 50ml of water
  4. STEP 3.
    Now add Urea solution into Iron Chloride solution dropwise, and keep stirring at 80°C for 2 hours.
  5. STEP 4.
    Filter out the precipitate, wash it with deionized Water and Ethanol several times to remove the unwanted impurities.
  6. STEP 5.
    After washing and drying. Obtained powder is Calcined at 650°C for 2 hours to form the Iron Oxide (Fe2O3) Nanoparticles.
    Size of the formed Iron (III) Oxide (Fe2O3) Nanoparticles should be around 50 nanometers. Size can be reduced upto 15nm by using Microwave heating (read Factors Affecting Synthesis for more information).
  8. Factors Affecting Synthesis
    Concentration of Urea: Higher the concentration of Urea smaller the size of Nanoparticles.
    Calcination Conditions: It was observed that if powder is calcined in Microwave for 5 minutes instead of conventional heating then size of the Nanoparticles reduces to 15 nanometers.
  9. NOTE: All the experiments should be done under the guidance of lab Incharge; and proper lab safety instructions.