Photocatalytic degradation of methylene blue in TiO2 aqueous suspensions using microwave powered electrodeless discharge lamps.
Photocatalytic degradation of methylene blue (MB) in TiO(2) aqueous suspensions using microwave (MW) powered electrodeless discharge lamps (EDLs) was studied. MB of initial concentration 100 mg/l was mainly decomposed in the process of photocatalytic degradation using EDLs (PCD/EDLs) after 15 min of irradiation. The corresponding mineralization efficiency was 45%. The influence of factors as EDLs, solution volume and TiO(2) catalyst dosage on the decomposition of MB in the PCD/EDLs process was also investigated. The optimal decomposition efficiency was observed when EDLs-4 (four 10 mm x 50 mm EDLs), solution volume of 50 ml and TiO(2) catalyst dosage of 1-4 g/l were used in the study. The PCD/EDLs process was promising in treating MB polluted water.
Hong
Jun
J
State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, China.
Sun
Cheng
C
Yang
Shao-Gui
SG
Liu
Ya-Zi
YZ
D002384:Catalysis; D004566:Electrodes; D008751:Methylene Blue / Q000737:chemistry*; D008872:Microwaves; D008970:Molecular Weight; D010777:Photochemistry; D013535:Suspensions / Q000737:chemistry; D014025:Titanium / Q000737:chemistry*
D013535:Suspensions; C009495:titanium dioxide; D014025:Titanium; D008751:Methylene Blue