Photochemical Heterogeneous Catalytic Reaction at Recirculated Reactor System

Keun-wook Lee; Jun-heok Lim; Jin-young Jung; Min-gyu Lee; Jea-keun Lee; Yun-sung Kim

Korean Journal of Chemical Engineering, Vol.19, No.2, 233-238, March, 2002

DOI10.1007/BF02698407 Export Citation

Photochemical Heterogeneous Catalytic Reaction at Recirculated Reactor System

Keun-wook Lee, Jun-heok Lim^†, Jin-young Jung, Min-gyu Lee , Jea-keun Lee¹, and Yun-sung Kim²

Department of Chemical Engineering, Pukyong National University, Busan 608-739, Korea
¹Department of Environmental Engineering, Pukyong National University, Busan 608-739, Korea
²Department of Chemical Engineering, Korea University, Seoul 136-701, Korea

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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.

Keywords:Titanium Dioxide;Azo Dye;Waste Water;Recirculation;Suspended Reactor

[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)

[Referenced By]

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[1] Blake DM, National Renewable Energy Laboratory, NREL/TP-473203 0 (1995)

[2] Chai YS, Lee JC, Kim BW, Korean J. Chem. Eng., 17(6), 633 (2000)

[3] Chen LC, Chou TC, J. Mol. Catal., 85, 201 (1993)

[4] Davis RJ, Gainer JL, Water Environ. Res., 66, 50 (1994)

[5] Fox MA, Dulay MT, Chem. Rev., 93, 341 (1993)

[6] 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)

[7] Matthews RW, J. Chem. Soc.-Faraday Trans., 85, 1291 (1989)

[8] Matthews RW, Water Res., 25, 1169 (1991)

[9] Nilsson R, Nordlinder R, Wass U, British J. Ind. Medi., 50, 65 (1993)

[10] Rajeshwar K, J. Appl. Electrochem., 25(12), 1067 (1995)

[11] Rajeshwar K, Ibanez JG, "Environmental Electrochemistry," Chapter 6, Academic Press, New York, U.S.A. (1997)

[12] Shifu C, Environ. Sci., 17, 33 (1996)

[13] Spadary JT, Isebelle L, Renganathan V, Environ. Sci. Technol., 28, 1389 (1994)

[14] Sopajaree K, Qasim SA, Basak S, Rajeshwar K, J. Appl. Electrochem., 29(5), 533 (1999)

[15] Sundada F, Heller A, Environ. Sci. Technol., 32, 282 (1998)

[16] Tang WZ, An H, Chemosphere, 31, 4157 (1995)

[17] Takeda N, Iwata N, Torimoto T, Yoneyama H, J. Catal., 177(2), 240 (1998)

[18] Zhu C, Wang L, Kong L, Yang X, Wang L, Zheng S, Chen F, Maizhi F, Zong H, Chemosphere, 41, 303 (2000)

[19] Levenspiel O, "Chemical Reaction Engineering," Wiley, 137 (1999)