Highly Efficient Plasmonic Palladium-Titanium Dioxide Co-Catalyst in the Photodegradation of Rhodamine B Dye

Abstract:

A co-catalyst was synthesized by photochemically depositing Pd nanoparticles onto TiO₂ nanopowder support in a one-pot synthesis procedure. The Pd nanoparticles exhibited localised surface plasmon resonance observed using UV-VIS which increased the absorption cross-section of the co-catalyst system into the visible as well as UV regions of the spectrum. This was found to have a significant contribution to the photocatalytic activity of the catalyst in dye degradation experiments. The size, morphology and distribution of the Pd nanoparticles were determined by TEM, while the chemical state and amount of Pd deposited were analysed via XPS and ICP respectively.

• Periodical: Advances in Science and Technology (Volume 93)
• Pages: 184-189
• DOI: https://doi.org/10.4028/www.scientific.net/AST.93.184
• Online since: October 2014
• Authors: Armando Marsden Lacerda, Igor Larrosa, Steve Dunn*
• Keywords: Co-Catalyst, Dye Degradation, Nanoparticle, Palladium, Photocatalysis, Plasmons, Rhodamine B, Titanium Dioxide

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