Green Synthesis of Zinc Oxide Spherical Nanoparticles via Aloe Vera

Zinc Oxide spherical nanoparticles have been synthesized from aloe vera plant. Zinc sulphate was used as precursor and aloe vear acted as reducing and capping agent for nanoparticles. Particle size was found to be around 15 to 20 nanometers and UV-Vis absorbance was observed around 360 nm

    Zinc Sulphate, Aloe Vera Leaves, Deionized Water.
  2. STEP 1.
    Collect Fresh leaves of Aloe Vera, wash and cut then into fine pieces.
  3. STEP 2.
    Add 20g of finely chopped leaves into 100ml deionied water and set temperature to 60°C.
  4. STEP 3.
    After 10 minutes, water turned light green. Which can be filtered out to be used as reducing and capping agent of Nanoparticles synthesis.
  5. STEP 4.
    Add Zinc Sulphate (6.5g) in 160ml of deionized water and setup the reflux at 60°C.
  6. STEP 5.
    Now add 20ml of Aloe Vera extract into Zinc Sulphate solution and stir it for 3 hours at 60°C.
  7. STEP 6.
    Centrifuge the off-White color opaque solution at 5000 rpm for 10 minutes and dry it to obtain powder of Zinc Oxide Nanoparticles.
    UV-Vis absorbance peak shown at 360nm. Average size of spherical Zinc Nanoparticles was found to be around 15-20 nanometers.
  9. NOTE: All the experiments should be done under the guidance of lab Incharge; and proper lab safety instructions.

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  1. Can we use neem leaves or leaves of some other trees instead of Aloe Vera?

  2. I accept such like procedure,If I get additional that good.

  3. How it shows nanoparticle activity on plant growth?


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