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Title
Japanese: 
English:Ag nanoparticle sheet as a marker of lateral remote photocatalytic reactions 
Author
Japanese: 永廣 武士, Kenichi Ishibashi, Yasuo Kimura, Michio Niwano, 林 智広, 池添 泰弘, 原 正彦, Tetsu Tatsuma, 玉田 薫.  
English: Takeshi Nagahiro, Kenichi Ishibashi, Yasuo Kimura, Michio Niwano, Tomohiro Hayashi, Yasuhiro Ikezoe, Masahiko Hara, Tetsu Tatsuma, Kaoru Tamada.  
Language English 
Journal/Book name
Japanese: 
English:Nanoscale 
Volume, Number, Page Vol. 2        pp. 107-113
Published date Jan. 2010 
Publisher
Japanese: 
English:The Royal Society of Chemistry 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
DOI https://doi.org/10.1039/b9nr00240e
Abstract The lateral remote photocatalytic activity of TiO2 nanotubes fabricated by anodic oxidation, was characterized by use of a ‘silver nanosheet’ as a marker. The silver nanosheet is a two-dimensional crystalline film composed of myristate-capped silver nanoparticles (d¼5nm), which has a sharp localized plasmon absorption band at lmax¼ 470 nm. A quartz substrate was coated with TiO2 nanotubes to a coverage of 10% and then covered with a silver nanosheet. Upon UV irradiation a rapid decrease in the intensity of the 470 nm plasmon band and an increase in the long-wavelength absorption (550–1000nm) band were clearly confirmed, indicating fusion of the nanoparticles due to decomposition of the myristate capping agent. Surface morphology measured by high-resolution scanning electron microscopy (SEM) and atomic force microscopy (AFM) revealed the decomposition and fusion of silver nanoparticles even in regions of the surface a micron away from the TiO2 nanotubes.

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