The first batch of graphene oxide(GO) is complete, the lyophilization was a success. The first batch that has been completed used the Hoffman synthesis method. Close behind is the Staudenmaier method. Based on appearance the Hoffman samples look fine. However, we will not have a concrete analysis of the material until further characterization is done. First, is SEM. This will give us a size distribution of the GO sheets.

Apart from producing and characterizing GO, I have also done analysis on silver coated cellulose membrane. Measuring the surface charge and contact angles for varying silver concentration. I obtained data for 1mM and 6mM Ag coated cellulose membranes. Unfortunately, I accidentally damaged the 3 mM Ag coated cellulose membranes which rendered erratic results.

Next is running SEM for Hoffman GO, then lyophilizing the Staudenmaier GO.