A simple and effective strategy for Visible-light-driven photocatalytic CO2 reduction into clean fuel

Summary

Photocatalytic CO2 reduction is an artificial photosynthesis that may provide a way to capture the solar energy for reduction of CO2 greenhouse gas into clean energy. However, this technology suffers from small conversion rates and low solar energy utilization. And so we will prepare through this study several heterostructure nanocomposites photocatalysts using different synthesis strategies as sol gel, solvothermal, electrochemical deposition and chemical solution decomposition to prepare stable, visible active and high-efficient nanocomposite photocatalysts for high efficient visible-light-driven photocatalytic reduction of CO2. The nano-photocatalysts will be characterized by XRD, FESEM, HRTEM, XPS, DRS, Raman and PL analysis. The photocatalytic reduction of carbon dioxide over the heterostructure nanocatalysts will be explored in an annular photoreactor under both UV and visible light irradiation and the formed products will be analyzed by gas phase chromatography (G.C). The effect of temperature, pressure and catalyst dosage on the photocatalytic CO2 reduction on suspended nanocatalysts will be studied in order to obtain the optimal reactor design.

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