title: Photocatalytic degradation of methylene blue in TiO2 aqueous suspensions using microwave powered electrodeless discharge lamps.
abstract: 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.
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Hong
authors.forename: Cheng
authors.initials: C
authors.lastname: Sun
authors.forename: Shao-Gui
authors.initials: SG
authors.lastname: Yang
authors.forename: Ya-Zi
authors.initials: YZ
authors.lastname: Liu
mesh_terms: D002384:Catalysis; D004566:Electrodes; D008751:Methylene Blue / Q000737:chemistry*; D008872:Microwaves; D008970:Molecular Weight; D010777:Photochemistry; D013535:Suspensions / Q000737:chemistry; D014025:Titanium / Q000737:chemistry*
chemical_list: D013535:Suspensions; C009495:titanium dioxide; D014025:Titanium; D008751:Methylene Blue