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Inverse Opal Structure of Nitrogen‐Doped Titanium Oxide with Enhanced Visible‐Light Photocatalytic Activity
Author(s) -
Li Qi,
Shang Jian Ku
Publication year - 2008
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2007.02171.x
Subject(s) - photocatalysis , materials science , photodegradation , visible spectrum , polystyrene , photonic crystal , titanium oxide , doping , chemical engineering , band gap , nitrogen , absorption (acoustics) , titanium , oxide , inverse , nanotechnology , optoelectronics , catalysis , composite material , chemistry , polymer , organic chemistry , engineering , metallurgy , geometry , mathematics
Nitrogen‐doped titanium oxide inverse opal structure was synthesized to combine both chemical and physical modifications on n ‐TiO 2 by the polystyrene sphere self‐assembly followed by a sol–gel process. Enhanced visible‐light absorption and subsequently enhanced photodegradation efficiency were observed in this unique structure, which can be attributed to both nitrogen‐doping effect and inverse opal structure effect. Our work suggests that the coupling of photonic band gap structure with photocatalytic materials is a promising approach to achieve maximum enhancement for various photocatalytic materials, especially for environmental applications and solar cell devices.