Using sunlight to facilitate and promote valuable chemical reactions is an ideal solution to the challenge of meeting future energy demands. Plasmonic nanostructures boast broadly tunable optical properties coupled with catalytically active surfaces that offer a unique opportunity for solar photochemistry. Resonant optical excitation of surface plasmons produces energetic hot charge carriers that can be collected to facilitate chemical reactions. This talk will show we unambiguously reveal the mechanics of plasmon-mediated electron transfer (PMET) in Au/TiO<sub>2</sub> heterostructures under visible light (λ &gt; 515 nm) during in situ operation and further discuss how we directly probe the relaxation dynamics and energetics of the transferred “effective hot electrons” that participate in photocatalytic reactions. Strategies will be developed for the rational design and construction of a new class of multi-component solar photocatalysts. Finally, I will touch on our recent effort to use SPR-mediated photothermal effects to synthesize hybrid bimetallic nanomaterials and then use these nanomaterials to oxidize CO in the presence of visible light.<br/>

Plasmon-mediated surface chemistry

2019 Fall National Meeting

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