Advanced Photocatalysis Techniques

Photocatalysis uses light-absorbing materials, typically semiconductors, to drive chemical reactions directly from sunlight — most ambitiously, splitting water molecules into hydrogen and oxygen as a clean fuel pathway. Researchers are working to push these reactions beyond ultraviolet light into the visible spectrum, where most solar energy actually resides, by engineering nanomaterials, graphene-based composites, and plasmonic structures that harvest a broader range of wavelengths more efficiently. A central open question is how to design catalysts that remain stable, scalable, and active enough under real-world conditions to make solar hydrogen production economically viable. Alongside water splitting, parallel efforts target CO2 reduction — using the same light-driven chemistry to convert a greenhouse gas into useful fuels or feedstocks.

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Keywords

PhotocatalystSemiconductorVisible LightWater SplittingGrapheneHydrogen Production