Excessive CO2 discharge derived from the continuous burning of fossil fuels has caused global warming and environmental issues. Artificial conversion of excess CO2 into serviceable energy products is an important pathway to achieve sustainable development. Solar-driven photocatalytic reduction of CO2 to carbon-neutral fuels (CO, CH4) and/or value-added chemicals (HCOOH, CH3OH) affords a feasible strategy for the aforesaid conversion. The implementation of this reaction can mitigate the greenhouse effect and energy crisis simultaneously. However, the structural activation process of CO2 molecule is particularly difficult because of its intrinsically chemical inertness and high C=O bond cleavage enthalpy.
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Source: Phys.org