Preparation and characterization of silver/TiO2 composite hollow spheres.
Silver-coated poly(methyl acrylic acid) (PSA) core-shell colloid particles were prepared by an in situ chemical reduction method. Crystalline silver/titania composite hollow spheres were obtained by coating the as-prepared PSA/silver particles with an amorphous titania layer and subsequently calcining in Ar atmosphere. SEM and TEM investigation indicated that the size of the as-prepared PSA/silver and PSA/silver/TiO(2) core-shell particles and silver/titania composite hollow particles was fairly uniform and the wall thickness of the hollow spheres was in the range of 40-80 nm. UV-vis absorption spectra were recorded to investigate their optical properties.
Song
Caixia
C
Department of Applied Chemistry, Qingdao University of Science and Technology, Qingdao, Shandong 266042, People's Republic of China.
Wang
Debao
D
Gu
Guohua
G
Lin
Yusheng
Y
Yang
Jingyi
J
Chen
Lei
L
Fu
Xun
X
Hu
Zhengshui
Z
D003102:Colloids / Q000737:chemistry; D008863:Microspheres; D010316:Particle Size; D019904:Polymethyl Methacrylate / Q000737:chemistry; D012834:Silver / Q000737:chemistry*; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
D003102:Colloids; C009495:titanium dioxide; D012834:Silver; D019904:Polymethyl Methacrylate; D014025:Titanium