Ultrasonic synthesis and photocatalytic characterization of H3PW12O40/TiO2 (anatase).
A novel H(3)PW(12)O(40)/TiO(2) (anatase) composite photocatalyst was prepared by a high-intensity ultrasonic method using a lower temperature (80 degrees C) and was characterized by XRD and FT-IR. Its photocatalytic activity, using solar light, was evaluated through the degradation of organic dye methylene blue (MB) in aqueous. When MB solution (50mg/l, 200 ml) containing H(3)PW(12)O(40)/TiO(2) (anatase) (0.4 g) was degraded by solar irradiation after 90 min, the removal of concentration and TOC of MB reached 95% and 73%, respectively. The photocatalyst activity of H(3)PW(12)O(40)/TiO(2) (anatase) was much higher than TiO(2) which was prepared in the same way. H(3)PW(12)O(40)/TiO(2) remained efficient after five repeated experiments.
Lee
Jia
J
School of Chemical and Material Engineering, Dalian Polytechnic University, Dalian 116034, PR China. bigfacecat22@hotmail.com
Dong
Xiaoli
X
Dong
Xuewei
X
D002384:Catalysis; D004396:Coloring Agents / Q000737:chemistry; D008751:Methylene Blue / Q000737:chemistry; D010772:Phosphotungstic Acid / Q000138:chemical synthesis* / Q000737:chemistry*; D055668:Photochemical Processes; D012993:Solar Energy; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature; D014025:Titanium / Q000737:chemistry*; D014465:Ultrasonics; D014961:X-Ray Diffraction
D004396:Coloring Agents; D010772:Phosphotungstic Acid; C009495:titanium dioxide; D014025:Titanium; D008751:Methylene Blue