Photocatalytic decolorization of rhodamine B by immobilized TiO2/UV in a fluidized-bed reactor

被引：0
作者：
Youngsoo Na
Seungkoo Song
Youngseek Park
机构：
[1] R&D Laboratory,Department of Chemical Engineering
[2] Segye Chemical Co. Ltd.,Department of Environmental Hygiene
[3] Pusan National University,undefined
[4] Daegu University,undefined
来源：
Korean Journal of Chemical Engineering | 2005年 / 22卷
关键词：
Photocatalytic Degradation; UV/TiO; Fluidized-bed; Dye; Immobilization; Adsorption;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The photocatalytic oxidation of Rhodamine B (RhB) was studied by using a newly developed immobilized photocatalyst (TiO2 immobilized by support consisting of a perlite and silicone sealant) and a fluidized-bed reactor. Three 8W germicidal lamps were used as the light source and the reactor volume was 2.8l. When this photocatalyst was employed in a batch process, a total decolorization of the RhB in reaction times lower than 60 min was observed. The optimum dosage of photocatalyst was 33.8 g/l. The initial RhB decolorization rate of the immobilized TiO2 was higher than that of the suspended TiO2 and this did not agree with pseudo first-order kinetics because of the adsorption onto the surface of the immobilized TiO2. This result indicated that the adsorption capacity of the immobilized photocatalyst is very important in photocatalysis.
引用
收藏
页码：196 / 200
页数：4
相关论文
共 81 条
[1]  
Ahn K.B.(2004)Ozone Lamp/Photocatalytic Decolorization of Rhodamine B Korean Soc., of Environ. Eng. 26 1063-1063
[2]  
Na S.N.(2003)Photocatalytic Degradation of Nitro Benzene Using Titanium Dioxide and Concentrated Solar Radiation: Chemical Effects and Scaleup Wat. Res. 37 1223-1223
[3]  
Park Y. S.(2000)Photocatalytic Disinfection of Korean J. Chem. Eng. 17 633-633
[4]  
Bhatkhande D. S.(2001) in a Suspended TiO Korean J. Chem. Eng. 18 908-908
[5]  
Pangarkar V.G.(1995)/UV Reactor Appl. Catal. B: Environ. 7 49-49
[6]  
Beenackers A. A. C. M.(2002)Physical Properties and Photocatalytic Performance of TiO Korean J. Chem. Eng. 19 1072-1072
[7]  
Chai Y. S.(1990) Coated Stainless Steel Plate Wat. Res. 24 653-653
[8]  
Lee J. C.(1999)Preparation and Characterization of TiO Catalyst Today 48 315-315
[9]  
Kim B.W.(2003) Photocatalysts Supported on Various Rigid Supports (Glass, Quartz and Stainless Steel). Comparative Studies of Photocatalytic Activity in Water Purification Korean J. Chem. Eng. 20 180-180
[10]  
Chun H.D.(2002)Photocatalytic Degradation of Trichloroethylene over TiO Chemosphere 47 1019-1019
123456789