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Title: Plasmon-enhanced UV photocatalysis

We report plasmonic nanoparticle enhanced photocatalysis on titanium dioxide (TiO{sub 2}) in the deep-UV range. Aluminum (Al) nanoparticles fabricated on TiO{sub 2} film increases the reaction rate of photocatalysis by factors as high as 14 under UV irradiation in the range of 260–340 nm. The reaction efficiency has been determined by measuring the decolorization rate of methylene blue applied on the TiO{sub 2} substrate. The enhancement of photocatalysis shows particle size and excitation wavelength dependence, which can be explained by the surface plasmon resonance of Al nanoparticles.
Authors:
; ;  [1] ;  [2] ;  [2] ;  [3]
  1. Department of Applied Physics, Osaka University, Suita, Osaka 565-0871 (Japan)
  2. Nanophotonics Laboratory, RIKEN, Wako, Saitama 351-0198 (Japan)
  3. (Japan)
Publication Date:
OSTI Identifier:
22283167
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; ALUMINIUM; EFFICIENCY; EXCITATION; EXTREME ULTRAVIOLET RADIATION; FREQUENCY DEPENDENCE; IRRADIATION; METHYLENE BLUE; NANOSTRUCTURES; PARTICLE SIZE; PARTICLES; PHOTOCATALYSIS; PLASMONS; REACTION KINETICS; SUBSTRATES; SURFACES; THIN FILMS; TITANIUM OXIDES