TY - JOUR
T1 - Monodisperse rutile TiO2 nanorod-based microspheres with various diameters
T2 - Hydrothermal synthesis, formation mechanism and diameter- and crystallinity-dependent photocatalytic properties
AU - Tian, Sha
AU - Yang, Heqing
AU - Cui, Meng
AU - Shi, Ruiyu
AU - Zhao, Hua
AU - Wang, Xuewen
AU - Wang, Xinyue
AU - Zhang, Lina
PY - 2011/7
Y1 - 2011/7
N2 - Monodisperse microspheres constructed with rutile TiO2 nanorods were synthesized by a hydrothermal reaction of TiCl3 with Na 2C2O4, ethylene glycol (EG) and H2O at 140-220°C for 4-12 h. The diameter of the microspheres can be changed in the range of 190-1200 nm by tuning the reaction temperature and time. The constituent nanorods grow along the c-axis of rutile, the side facets of which are (110), (1̄10),(11̄0), and (110). The formation of the rod-like structure results from the selective adsorption of C2O 42- ions on {110} prismatic faces of rutile TiO 2 nanorods. The hydrogen bonding formed between rutile TiO 2 nanorods adsorbing EG drives the formation of the nanorod-based spherical nanoarchitectures. The photocatalytic ability of the as-prapared the anatase-rutile composite TiO2 nanorod-based nanospheres with a diameter of about 190 nm is stronger than that of rutile TiO2 nanorod-based nanospheres with diameters of 500 and 1000 nm.
AB - Monodisperse microspheres constructed with rutile TiO2 nanorods were synthesized by a hydrothermal reaction of TiCl3 with Na 2C2O4, ethylene glycol (EG) and H2O at 140-220°C for 4-12 h. The diameter of the microspheres can be changed in the range of 190-1200 nm by tuning the reaction temperature and time. The constituent nanorods grow along the c-axis of rutile, the side facets of which are (110), (1̄10),(11̄0), and (110). The formation of the rod-like structure results from the selective adsorption of C2O 42- ions on {110} prismatic faces of rutile TiO 2 nanorods. The hydrogen bonding formed between rutile TiO 2 nanorods adsorbing EG drives the formation of the nanorod-based spherical nanoarchitectures. The photocatalytic ability of the as-prapared the anatase-rutile composite TiO2 nanorod-based nanospheres with a diameter of about 190 nm is stronger than that of rutile TiO2 nanorod-based nanospheres with diameters of 500 and 1000 nm.
UR - http://www.scopus.com/inward/record.url?scp=79959195502&partnerID=8YFLogxK
U2 - 10.1007/s00339-010-6085-2
DO - 10.1007/s00339-010-6085-2
M3 - 文章
AN - SCOPUS:79959195502
SN - 0947-8396
VL - 104
SP - 149
EP - 158
JO - Applied Physics A: Materials Science and Processing
JF - Applied Physics A: Materials Science and Processing
IS - 1
ER -