Size-dependence of Fermi energy of gold nanoparticles loaded on titanium(iv) dioxide at photostationary state

TiO(2) particle-supported Au nanoparticles (NPs) with varying sizes and good contact (Au/TiO(2)) were prepared under a constant loading amount by the deposition-precipitation method. The Fermi energy of Au NPs loaded on TiO(2) at the photostationary state (E(F)') was determined in water by the...

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Veröffentlicht in:	Physical chemistry chemical physics : PCCP 2008-01, Vol.10 (43), p.6553-6561
Hauptverfasser:	KIYONAGA, Tomokazu, FUJII, Masashi, AKITA, Tomoki, KOBAYASHI, Hisayoshi, TADA, Hiroaki
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption Biotechnology - methods Catalysis Chemistry Colloidal state and disperse state Exact sciences and technology General and physical chemistry Gold - chemistry Light Metal Nanoparticles - chemistry Molecular Conformation Nanotechnology - methods Photochemistry Photochemistry - methods Physical and chemical studies. Granulometry. Electrokinetic phenomena Physical chemistry of induced reactions (with radiations, particles and ultrasonics) Semiconductors Spectrophotometry - methods Sulfur - chemistry Titanium - chemistry
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Zusammenfassung:	TiO(2) particle-supported Au nanoparticles (NPs) with varying sizes and good contact (Au/TiO(2)) were prepared under a constant loading amount by the deposition-precipitation method. The Fermi energy of Au NPs loaded on TiO(2) at the photostationary state (E(F)') was determined in water by the use of S/S(2-) having specific interaction with Au as a redox probe. The E(F)' value goes up as the mean size of Au NPs (d) increases at 3.0
ISSN:	1463-9076 1463-9084
DOI:	10.1039/b809681c