Synthesis of Reduced Graphene Oxide-Titanium (rGO-TiO2) Composite Using a Solvothermal and Hydrothermal Methods and Characterized via XRD and UV-Vis

Nowadays, Carbon Capture and Conversion (CCC) method is one of the alternative solutions in carbon management. The reduced graphene oxide-Titanium (rGO-TiO2) composites are the CCC material that will capture the carbon dioxide (CO2) and convert it into hydrocarbon fuels such as methane. The effect of synthesizing method into crystallinity growth and the band gap will be studied in this research work.Therefore, the rGO-TiO2 will be synthesized via solvothermal and hydrothermal methods and then will be characterized via XRD and UV-Vis. The temperature and treatment time were fixed in both synthesis methods. The characterization results via XRD and UV-Vis conclude that, the different synthesis methods affected the crystallinity growth and its band gap. The rGO-TiO2 synthesized via modified hydrothermal method shows the lowest crystallite size and band gap compared to other samples. It will indirectly affect the photogenerated electrons on TiO2 to rGO better compared to rGO-TiO2 synthesized via solvothermal. The green synthesis method which requires a low equipment cost and simple experimental steps is the contribution of this research finding.