Silver Nanoparticles Synthesis by using Silver Nitrate, Hydrazine Hydrate and AOT via Microemulsion Method.

Silver Nanoparticles Synthesis by using Silver Nitrate as precursor, Hydrazine Hydrate as reducing agent and AOT (surfactant) via Microemulsion Method.

1. CHECK LIST

   Silver Nitrate, Hydrazone Hydrate (N2H2.H2)), Sodium bis(2-ethylhxyl) Sulfoduccinate (AOT), Dedecone, Deionized Water, RB Flask, Dropper, Magnetic Stirrer.

   

2. STEP 1.

   Take 2.2g of AOT in 25ml of dedecane.

   

3. STEP 2.

   Take 170 mg Silver Nitrate in 5ml water and add it drop wise into solution prepared into step-1, to prepare precursor microemulsion.

   

4. STEP 3.

   Again, take Take 2.2g of AOT in 25ml of dedecane (same as taken in step-1).

   

5. STEP 4.

   Take 150mg Hydrazine hydrate in 5ml of water and add it drop wise into solution prepared into step-3, to prepare reducing agent microemulsion

   

6. STEP 5.

   Add reducing agent microemulsion (prepared in step-4) into precursor emulsion (prepared in step-2) and mix them at maximum rpm.

   

7. STEP 6.

   After 3 hours, the color changes to light yellow indicates the formation of Silver Nanoparticles.

   

8. RESULTS

   Silver Nanoparticles size should be around 5-10 nanometers. UV-Vis absorbance should be around 420nm.

   

9. Factors Affecting Synthesis

   Stirring Speed: Stirring speed is very important in this as microemulsion droplet size depends on the stirring speed. As much as high speed would be there, smaller the emulsion droplet size thus leading to small size Nanoparticles.

10. NOTE: All the experiments should be done under the guidance of lab Incharge; and proper lab safety instructions.