To control thethickness of the nanocomposition time was also tested. at this stage, the deposition time was ranged between 500 and 2000s at constant deposition potential of 1.5 v. as shown in deposition time of 1000s was the best choice for polymerization.
the concentration of the monomers was another important factor on polymerization. the oPD AND OT concentrations were varied from 0.025 to 0.15 mol l. a constant 1000s deposition time and 1.5v deposition potential versus Ag/AgCL was used in all cases. by increasing the concentration of monomers, the film thickness increased. lt was observed that 0.05 mol L for oPD and 0.1 mol L for oT resulted in the highest extraction efficiencies.