Figures index : Photoreforming of Biomass - Producing Hydrogen from Sugar : Science and Education Publishing

Figures index

World Journal of Chemical Education. 2021, 9(4), 130-135 doi:10.12691/wjce-9-4-5

Figure 1. Schematic representation of the processes in a photocatalyst. a. light excitation, b. electron-hole-pair, c. redox reactions at the activated semiconductor

Figure 2. Simplified schematic representation of the photoreforming process of glucose

Figure 3. a. driving out dissolved gas from the glucose solution by heating, b. adding glucose solution in the glass vessel with the Pt/TiO₂-photocatalyst, c. closing the vessel with a pierced plug and cover, d. placing the glass vessel with the suspension into the pneumatic bath and a syringe without piston and a two-way stopcock on its top, e. filling the first syringe with water with the aid of a second syringe, f. irradiation of the substrate/photocatalyst suspension

Figure 4. Set-up of the detonating gas test. a. inserting 1 mL of the gas mixture in a soap solution, b. igniting the gas mixture

Figure 5. The peak caused by the collected gas appears after the same retention time as that of a control portion of hydrogen from a gas bottle