Title :
Photocatalytic Degradation of Toluene over Titanium Dioxide Thin Film
Author :
Liang, Wenjun ; Zhao, Jin
Author_Institution :
Coll. of Environ. & Energy Eng., Beijing Univ. of Technol., Beijing, China
Abstract :
An experimental study on VOCs removal with photocatalyst in a batch reactor was carried out at atmospheric pressure and room temperature. TiO2 thin film photocatalyst coated on glass spring was prepared with dip-coating method. The photocatalyst was extensively characterized by means of spectroscopy (XRD) and microscopy (SEM). Toluene was taken as the typical VOCs for photocatalytic degradation as a function of gas flow rate and single versus mixed gases. The study indicated that flow rate influenced the degradation significantly and there were the optimal values; the difference between single gas and the mixed gas was remarkable and the degradation rate of mixed toluene in VOCs were higher than single toluene. Mechanism of titania-assisted photocatalytic degradation of toluene was also investigated in the paper, toluene molecule was turned into CO2 and H2O in the end.
Keywords :
X-ray diffraction; catalysis; dip coating; organic compounds; photochemistry; scanning electron microscopy; thin films; titanium compounds; SEM; TiO2; XRD; dip-coating method; gas flow; glass spring; mixed gases; photocatalytic degradation; temperature 293 K to 298 K; titanium dioxide thin film; toluene; volatile organic compounds; Degradation; Dip coating; Glass; Inductors; Scanning electron microscopy; Spectroscopy; Springs; Temperature; Titanium; Transistors;
Conference_Titel :
Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2901-1
Electronic_ISBN :
978-1-4244-2902-8
DOI :
10.1109/ICBBE.2009.5163187
