D. Chatterjee et A. Mahata, Demineralization of organic pollutants on the dye modified TiO2 semiconductor particulate system using visible light, APP CATAL B, 33(2), 2001, pp. 119-125
Citations number
17
Categorie Soggetti
Physical Chemistry/Chemical Physics","Environmental Engineering & Energy
Photodegradation of organic pollutants, viz. phenol, chlorophenol, 1,2-dich
loroethane and trichloroethylene in water has been achieved on the surface
of TiO2 semiconductor modified with thionine and eosin Y by using visible l
ight. After 5 h of irradiation with a 50 W tungsten lamp, over 55-72% degra
dation of pollutants is achieved. A working mechanism involving excitation
of surface bound dye, followed by charge injection into the TiO2 conduction
band is proposed. (C) 2001 Elsevier Science B.V All rights reserved.