Synthesis of Zinc Oxide (ZnO) Nanoparticles by Simple Reduction Method

Synthesis of Zinc Oxide (ZnO) Nanoparticles by Simple Reduction Method

1. CHECK LIST

   Zinc Nitrate (Zn(NO3)2.6H2O), Potassium hydroxide, Deionized Water
   
2. STEP 1.

   Make 0.2M Zinc Nitrate solution in a beaker.
   
3. STEP 2.

   Make 0.4M Potassium hydroxide solution in another beaker.
   
4. STEP 3.

   Dropwise add Potassium hydroxide (0.4M) solution into Zinc Nitrate (02M). Stop adding KOH when white suspension is formed into the solution.
   
5. STEP 4.

   This white suspension are pre-formed ZnO Nanomaprticles, which can be seperated out at 5000-7000rpm in centrifuge
   
6. STEP 5.

   This white powder obtained after centrifuge is calcined at 500°C for 3 hours in air.
   
7. RESULTS

   Spherical 30nm size Zinc Oxide (ZnO) Nanoparticles are formed during this process. UV-Vis absorption of ZnO Nanoparticles are around 340nm.
   
8. NOTE: All the experiments should be done under the guidance of lab Incharge; and proper lab safety instructions.