Proceedings of September Meeting 2016 (NFM16)
Publication date: 14th June 2016
Harnessing sunlight and storing the energy in chemical bonds is an important element in the transition towards green and sustainable technologies. Solar fuel production requires photocatalysts that (1) absorb large parts of the solar spectrum, (2) generate charges with significant lifetimes and apropriate energies, (3) catalyse relevant chemical transformations from abundant, low-energy starting materials, and (4) are stable under operating conditions. Semiconductor nanoparticles (SNPs) are widely studied as photocatalysts but can suffer from poor utilization of the solar spectrum and/or limited stability under operating conditions. A new avenue addressing these challenges involve plasmonic metal nanoparticles (PNPs). These materials have tunable optical properties, exciting catalytic behavior, and can be more stable under operating conditions. Composite photocatalysts of SNPs and PNPs exploit the broad solar spectrum, provide new catalytic routes and expand the scope of solar photocatalysis.
The newly initiated project aims to prepare composite nanomaterials of SNPs and PNPs from mild, aqueous synthesis protocols and test the catalytic properties of these plasmonic photocatalysts. Presented here are early results on plasmonic heating of gold nanoparticles (AuNPs) which is an important aspect of AuNP photocatalysis, and synthesis of zinc oxide/AuNP composite nanostructures.
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