Synthesis of the precursor:
Step 1: Weigh
182mg of vanadium pentoxide by using a weighing balance.
Step 2:
Measure 15 ml of hydrogen peroxide by using a measuring cylinder + dropper.
Step 3: Mix
the vanadium pentoxide and hydrogen peroxide in a beaker and stir well in a hot
temperature, 70degree celcius, at a speed of 700rpm.
Step 4:
Measure 1g of oxalic acid after the reaction in the beaker has taken place.
Then, pour it in the beaker.
Step 5: Allow
the reaction to take place for around 2 to 3 hours. A dark blue solution should
be observed, indicating that the reaction has taken place.
Step 6: Weigh
5mg of PVP and pour into the beaker and stir well.
V2O5
+ 2H2O2 → V2O5
. 2H2O + O2
Filter the contents of the beaker through a filter funnel into a container 5 hours after step 4. Allow contents to rest in the container at least 24 hours before use.