Preparation of ordered mesoporous Ag/WO3 and its highly efficient degradation of acetaldehyde under visible-light irradiation.
A highly active photocatalyst, silver loaded mesoporous WO(3), was successfully synthesized by an ultrasound assisted insertion method. The photodegradation of a common air pollutant acetaldehyde was adopted to evaluate the photocatalytic performance of the as-prepared sample under visible-light irradiation. The photocatalytic activity was about three and six times higher than that of pure mesoporous WO(3) and nitrogen-doped TiO(2), respectively. The photocatalytic mechanism was investigated to understand the much enhanced photocatalytic activity, which was mainly attributed to the largely improved electron-hole separation in the Ag-WO(3) heterojunction.
Sun
Songmei
S
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences (SICCAS), No. 1295 Dingxi Road, Shanghai 200050, PR China.
Wang
Wenzhong
W
Zeng
Shaozhong
S
Shang
Meng
M
Zhang
Ling
L
D000079:Acetaldehyde / Q000737:chemistry* / Q000528:radiation effects; D000395:Air Pollutants, Occupational / Q000737:chemistry* / Q000528:radiation effects; D002245:Carbon Dioxide / Q000737:chemistry / Q000378:metabolism; D002384:Catalysis; D008027:Light; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry* / Q000528:radiation effects; D010777:Photochemistry; D016062:Porosity; D018030:Silver Compounds / Q000737:chemistry* / Q000528:radiation effects; D014025:Titanium / Q000737:chemistry; D014414:Tungsten / Q000737:chemistry* / Q000528:radiation effects; D014961:X-Ray Diffraction
D000395:Air Pollutants, Occupational; D010087:Oxides; D018030:Silver Compounds; D002245:Carbon Dioxide; C009495:titanium dioxide; C040225:disilver oxide; C511604:tungsten oxide; D014025:Titanium; D000079:Acetaldehyde; D014414:Tungsten