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On the True Photoreactivity Order of {001}, {010}, and {101} Facets of Anatase TiO 2 Crystals
Author(s) -
Pan Jian,
Liu Gang,
Lu Gao Qing Max,
Cheng HuiMing
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201006057
Subject(s) - anatase , reactivity (psychology) , photocatalysis , radical , order (exchange) , materials science , crystallography , characterization (materials science) , chemical physics , chemical engineering , chemistry , nanotechnology , catalysis , organic chemistry , business , medicine , pathology , engineering , alternative medicine , finance
Contrary to conventional understanding , clean anatase {001} facets exhibit lower photoreactivity than {101} facets. Furthermore, the {010} facets showed the highest photocatalytic reactivity in generating OH radicals and hydrogen evolution. This behavior was revealed by studies on crystals grown hydrothermally to have a predominance of {001}, {101}, or {010} facets (left to right in picture (a) and (b)–(d), respectively).