Multi-walled carbon nanotubes supported Cu-doped ZnO nanoparticles and their optical property.
Multi-walled carbon nanotubes (MWNTs)/Cu-doped ZnO composite powders were prepared by co-precipitation method, and were characterized by X-ray diffraction, electron microscopy, fluorescence spectrum, and ultraviolet spectrum. Experimental results show that the MWNTs can be modified by Cu-doped ZnO nanoparticles with hexagonal wurtzite structure after annealed at 450 °C, and the nanoparticle size is about 15 nm. Two ultraviolet (UV) peaks and a green band centered at about 510 nm are observed in the fluorescence spectrum of MWNTs/Cu-doped ZnO composite powder annealed at 450 °C. Furthermore, MWNTs and Cu doping significantly improve the UV absorption ability of ZnO.
C S
CS
Chen
X D
XD
Xie
T G
TG
Liu
L W
LW
Lin
J C
JC
Kuang
X L
XL
Xie
L J
LJ
Lu
S Y
SY
Cao