Abstract:
In concluding remarks, GCN+ZIF-8+WO3 and GCN+WO3 are synthesized by
hydrothermal method. The synthesis of these composites by the hydrothermal method
provided a large surface area and mic-porous structure which improved its
electrochemical activity. GCN+WO3 shows good conductivity and electrochemical
properties using 1M Na2SO4 as an electrolyte. GCN+WO3-based composites were shown
higher photocurrent density of 4μm cm-2 than other photocatalysts. Electrochemical
impedance results showed that GCN+WO3 showed lower resistance of almost 120 kohm
resistance which is smaller than the rest of the catalyst.
UV-Vis-DRS of GCN+ZIF-8+WO3 showed the band gap and Urbach energy of 2.52 eV
and 0.19 eV energy respectively. This lower band gap catalyst can be used for further
applications like the photodegradation of pollutants and many others. UV-Visible analysis
is purely a light and matter phenomenon, and EIS is light and chemical interactions. XRD
analysis confirmed the formation of GCN, ZIF-8 and WO3.
