| Issue |
Korean Journal of Chemical Engineering,
Vol.19, No.2, 233-238, 2002
Vol.19, No.2, 233-238, 2002
Photochemical Heterogeneous Catalytic Reaction at Recirculated Reactor System
A study was undertaken to examine the possibility of combining a batch-recirculated photoreactor with a ceramic membrane filter for heterogeneous photocatalysis applications. D-cargo red GS (GS) was used as the test substrate and titanium dioxide was used as photocatalyst for this study. The dark adsorption of GS on the TiO2 particle surface was also analyzed. The adsorption trends of GS at various initial concentrations followed the Langmuir isotherm trend. The GS were decolorized from 20% to 70% by the dark adsorption with various concentrations. The photodegradation of GS after the dark adsorption showed the behavior of Langmuir-Hinshelwood model. The variation of recirculation flow rate did not much influence photocatalysis. Variation tendencies of GS concentration were almost similar after about 90 minutes illumination in spite of the flow rate change. The values of k (apparent first order rate constant) also varied with increase of the recirculation flow rate, but there were no observable significant differences between them.
[References]
- Blake DM, National Renewable Energy Laboratory, NREL/TP-473203 0, 1995
- Chai YS, Lee JC, Kim BW, Korean J. Chem. Eng., 17(6), 633, 2000
- Chen LC, Chou TC, J. Mol. Catal., 85, 201, 1993
- Davis RJ, Gainer JL, Water Environ. Res., 66, 50, 1994
- Fox MA, Dulay MT, Chem. Rev., 93, 341, 1993
- Fernandez A, Lassaletta G, Jimenez VM, Justo A, Gonzalezelipe AR, Herrmann JM, Tahiri H, Aitichou Y, Appl. Catal. B: Environ., 7(1-2), 49, 1995
- Matthews RW, J. Chem. Soc.-Faraday Trans., 85, 1291, 1989
- Matthews RW, Water Res., 25, 1169, 1991
- Nilsson R, Nordlinder R, Wass U, British J. Ind. Medi., 50, 65, 1993
- Rajeshwar K, J. Appl. Electrochem., 25(12), 1067, 1995
- Rajeshwar K, Ibanez JG, "Environmental Electrochemistry," Chapter 6, Academic Press, New York, U.S.A., 1997
- Shifu C, Environ. Sci., 17, 33, 1996
- Spadary JT, Isebelle L, Renganathan V, Environ. Sci. Technol., 28, 1389, 1994
- Sopajaree K, Qasim SA, Basak S, Rajeshwar K, J. Appl. Electrochem., 29(5), 533, 1999
- Sundada F, Heller A, Environ. Sci. Technol., 32, 282, 1998
- Tang WZ, An H, Chemosphere, 31, 4157, 1995
- Takeda N, Iwata N, Torimoto T, Yoneyama H, J. Catal., 177(2), 240, 1998
- Zhu C, Wang L, Kong L, Yang X, Wang L, Zheng S, Chen F, Maizhi F, Zong H, Chemosphere, 41, 303, 2000
- Levenspiel O, "Chemical Reaction Engineering," Wiley, 137, 1999
참고문헌정보(참고문헌, 인용문헌)는 화학공학소재연구정보센터에 의해 제공되고 있습니다.