Alternately, this oxidation half reaction can be replaced by the oxidation of an electron-donating carbonaceous biomass (polymer and organic waste). The photoreforming of biomass in the presence of water and solar light, decreases the thermodynamic barrier i.e. lowers the Gibbs free energy change; for example, ∆G for glucose, a component of biomass is -84.7 kJ/mol by photoreforming which is much lower than ∆G of 237 kJ/mol for water splitting. The complete photoreforming process may be described as the oxidation of electron-donating carbonaceous biomass and hydrogen evolution reaction (HER) in the presence of a semiconductor photocatalyst, initiated from water. While water splitting is an energyintensive process, biomass oxidation is both exergonic and exothermic. The combination of these mechanisms might result in an uphill reforming process and improve efficiency. This technique may generate hydrogen at a substantially greater rate using a range of feedstocks, including waste organic (polymer and plastic) materials .