Currently it still remains a great challenge to specifically control the electronic structure of Au nanoparticles in the metal-semiconductor heterostructure in order to fundamentally understand their catalytic mechanisms. Herein, we have demonstrated a novel strategy to engineer the surface electronics structure of TiO2-supported Au nanoparticles using localized surface plasmon resonance (LSPR).Upon visible light irradiation, the LSPR excitations of Au nanoparticles can mediate the �hot electron� transfer from the Au nanoparticles to TiO2, and it was discovered that the CO oxidation activity was greatly enhanced. Furthermore, such SPR-mediated �hot electron� transfer also led a new reaction pathway for O2 activation. We believe that our study would pave a new way for broadening the applications of Au nanoparticles in catalysis.

Visible-light enhanced low temperature CO oxidation

247th National Meeting (2014)

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