TY - JOUR
T1 - Highly efficient photocatalytic oxidation of phenol over ordered mesoporous Bi2WO6
AU - Sun, Songmei
AU - Wang, Wenzhong
AU - Xu, Jiehui
AU - Wang, Lu
AU - Zhang, Zhijie
N1 - Funding Information:
This work is financially supported by the National Natural Science Foundation of China ( 50972155, 50902144 ), National Basic Research Program of China ( 2010CB933503, 2007CB613305 ) and the Innovation Research of the Shanghai Institute of Ceramics .
PY - 2011/8/11
Y1 - 2011/8/11
N2 - Ordered mesoporous Bi2WO6 (M-Bi2WO6) with nanocrystalline walls was fabricated for the first time by a silica-templated nanocasting method with bismuth nitrate and phosphotungstic acid as precursors. The as-prepared mesoporous Bi2WO6 sample exhibited a much higher photocatalytic activity than the conventional hydrothermally synthesized nanoscale Bi2WO6 (HR-Bi2WO6) on the degradation of phenol which is quite toxic but widely used and slowly degradable in the environment. Almost 97% of the phenol molecules were degraded within 60min along with the sharp decrease of total organic carbon (TOC) in 100mL of phenol solution (20mg/L) under visible-light irradiation. Compared with HR-Bi2WO6 sample, the M-Bi2WO6 sample exhibited a negative shift of conduction band edge potential and faster charge transfer property which helped to improve the photocatalytic performance.
AB - Ordered mesoporous Bi2WO6 (M-Bi2WO6) with nanocrystalline walls was fabricated for the first time by a silica-templated nanocasting method with bismuth nitrate and phosphotungstic acid as precursors. The as-prepared mesoporous Bi2WO6 sample exhibited a much higher photocatalytic activity than the conventional hydrothermally synthesized nanoscale Bi2WO6 (HR-Bi2WO6) on the degradation of phenol which is quite toxic but widely used and slowly degradable in the environment. Almost 97% of the phenol molecules were degraded within 60min along with the sharp decrease of total organic carbon (TOC) in 100mL of phenol solution (20mg/L) under visible-light irradiation. Compared with HR-Bi2WO6 sample, the M-Bi2WO6 sample exhibited a negative shift of conduction band edge potential and faster charge transfer property which helped to improve the photocatalytic performance.
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U2 - 10.1016/j.apcatb.2011.06.016
DO - 10.1016/j.apcatb.2011.06.016
M3 - Article
AN - SCOPUS:79960838572
SN - 0926-3373
VL - 106
SP - 559
EP - 564
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
IS - 3-4
ER -