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Surface Properties and Photocatalytic Activity of Pt core /Ag shell Nanoparticle‐Loaded TiO 2
Author(s) -
Tada Hiroaki,
Takao Ayako,
Akita Tomoki,
Tanaka Koji
Publication year - 2006
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200600261
Subject(s) - bimetallic strip , photocatalysis , nanoparticle , nanotechnology , shell (structure) , layer (electronics) , surface (topology) , chemical engineering , materials science , chemistry , catalysis , mathematics , composite material , engineering , organic chemistry , geometry
Bimetallic nanoparticles are successfully formed on the surface of TiO 2 (see figure) with Ag shell layer ( n L ) control. Pt@Ag/TiO 2 exhibits unique photocatalytic performances for reduction of nitorobenzene at n L ≤1, however when n L exceeds ≈1 they are similar to those of Ag/TiO 2 . Furthermore at the critical value of n L ≈1, the surface properties of Pt@Ag nanoparticles change from Pt to Ag.