Low-temperature preparation and microwave photocatalytic activity study of TiO2-mounted activated carbon.
TiO2 thin films were deposited on granular activated carbon by a dip-coating method at low temperature (373 K), using microwave radiation to enhance the crystallization of titania nanoparticles. Uniform and continuous anatase titania films were deposited on the surface of activated carbon. BET surface area of TiO2-mounted activated carbon (TiO2/AC) decreased a little in comparison with activated carbon. TiO2/AC possessed strong optical absorption capacity with a band gap absorption edge around 360 nm. The photocatalytic activity did not increase when the as-synthesized TiO2/AC was thermally treated, but was much higher than commercial P-25 in degradation of phenol by irradiation of electrodeless discharge lamps (EDLs).
Liu
Yazi
Y
State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, PR China.
Yang
Shaogui
S
Hong
Jun
J
Sun
Cheng
C
D000327:Adsorption; D002244:Carbon / Q000737:chemistry*; D002384:Catalysis; D003080:Cold Temperature; D008855:Microscopy, Electron, Scanning; D008872:Microwaves; D019800:Phenol / Q000737:chemistry; D010777:Photochemistry; D014025:Titanium / Q000737:chemistry*; D014961:X-Ray Diffraction
C009495:titanium dioxide; D019800:Phenol; D002244:Carbon; D014025:Titanium