TY - JOUR
T1 - Hierarchical WO3 hollow shells
T2 - Dendrite, sphere, dumbbell, and their photocatalytic properties
AU - Chen, Di
AU - Ye, Jinhua
PY - 2008/7/9
Y1 - 2008/7/9
N2 - In this work, hierarchical WO3 hollow shells: dendrites, spheres and dumbbells have been successfully synthesized by simply calcining the acid-treated PbWO4 and SrWO4 as precursors at 500°C for 2 h. These hollow structures were characterized using X-ray diffraction, scanning and transmission electron microscopies, Brunauer-Emmet-Teller surface area and diffuse reflectance spectroscopy, respectively. Possible formation mechanisms for hollow WO3 shells consisted of tiny nanoplatelets were investigated in detail. Comparing with commercial WO3 particles, all the obtained hollow shells with larger BET surface areas showed enhanced photocatalytic activities for the degradation of organic contaminants under visible light irradiation.
AB - In this work, hierarchical WO3 hollow shells: dendrites, spheres and dumbbells have been successfully synthesized by simply calcining the acid-treated PbWO4 and SrWO4 as precursors at 500°C for 2 h. These hollow structures were characterized using X-ray diffraction, scanning and transmission electron microscopies, Brunauer-Emmet-Teller surface area and diffuse reflectance spectroscopy, respectively. Possible formation mechanisms for hollow WO3 shells consisted of tiny nanoplatelets were investigated in detail. Comparing with commercial WO3 particles, all the obtained hollow shells with larger BET surface areas showed enhanced photocatalytic activities for the degradation of organic contaminants under visible light irradiation.
UR - http://www.scopus.com/inward/record.url?scp=47949116039&partnerID=8YFLogxK
U2 - 10.1002/adfm.200701468
DO - 10.1002/adfm.200701468
M3 - Article
AN - SCOPUS:47949116039
SN - 1616-301X
VL - 18
SP - 1922
EP - 1928
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 13
ER -