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α‐Fe 2 O 3 Nanodisks: Layered Structure, Growth Mechanism, and Enhanced Photocatalytic Property
Author(s) -
Qu Jin,
Yu Yu,
Cao ChangYan,
Song WeiGuo
Publication year - 2013
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201301295
Subject(s) - photocatalysis , hydrothermal circulation , facet (psychology) , adsorption , absorption (acoustics) , silicate , computer science , materials science , mechanism (biology) , nanotechnology , simple (philosophy) , service (business) , chemical engineering , chemistry , physics , business , catalysis , engineering , composite material , organic chemistry , psychology , social psychology , personality , big five personality traits , philosophy , quantum mechanics , epistemology , marketing
Layered structure : α‐Fe 2 O 3 nanodisks with a layered structure assembled from nanoplates were produced by a hydrothermal method (see figure). The simple, low‐cost method used silicate anions as capping ligands, which selectively adsorbed onto the {0001} facet of α‐Fe 2 O 3 and terminated the growth along the [0001] direction, leading to platelike building units. The layered structure led to significantly enhanced absorption of visible light, compared with single‐layer α‐Fe 2 O 3 , and excellent photocatalytic abilities.