Heterogeneous lollipop-like V2O5/ZnO array: a promising composite nanostructure for visible light photocatalysis.
ZnO/V(2)O(5) core-shell nanostructures have been prepared by a two-step synthesis route through combined hydrothermal growth and magnetron sputtering. After annealing under oxygen ambience, a ZnO/V(2)O(5) heterogeneous lollipop-like nanoarray formed. The microstructure and crystal orientation of those nanolollipops were investigated by scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM), which show single crystal structure. The optical properties were characterized by UV-vis spectroscopy and showed quite different absorption curves for the as-deposited and annealed samples. The ZnO/V(2)O(5) nanolollipops demonstrated excellent photocatalytic activity in terms of decomposing 2,6-dichlorophenol (2,6-DCP) under visible light, indicating their promising potential as catalysts for industrial wastewater and soil pollution treatments.
Zou
C W
CW
Department of Chemical and Materials Engineering, The University of Auckland, Private Bag 92019, Auckland, New Zealand. czou003@aucklanduni.ac.nz
Rao
Y F
YF
Alyamani
A
A
Chu
W
W
Chen
M J
MJ
Patterson
D A
DA
Emanuelsson
E A C
EA
Gao
W
W