Photocatalytic Decolorization of Rhodamine B by Immobilized TiO2/UV in a Fluidized-bed Reactor

Youngsoo Na; Seungkoo Song; Youngseek Park

Korean Journal of Chemical Engineering, Vol.22, No.2, 196-200, March, 2005

DOI10.1007/BF02701484 Export Citation

Photocatalytic Decolorization of Rhodamine B by Immobilized TiO2/UV in a Fluidized-bed Reactor

Youngsoo Na, Seungkoo Song¹, and Youngseek Park^{2, †}

R&D Laboratory, Segye Chemical Co. Ltd., Kyungnam 626-110, Korea
¹Department of Chemical Engineering, Pusan National University, Busan 609-735, Korea
²Department of Environmental Hygiene, Daegu University, Gyeongbuk 712-830, Korea

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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 2.8 l. 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.

Keywords:Photocatalytic Degradation;UV/TiO2;Fluidized-bed;Dye;Immobilization;Adsorption

[References]

Ahn KB, Na SN, Park YS, Korean Soc. Environ. Eng., 26(10), 1063 (2004)
Bhatkhande DS, Pangarkar VG, Beenackers AACM, Water Res., 37, 1223 (2003)
Chai YS, Lee JC, Kim BW, Korean J. Chem. Eng., 17(6), 633 (2000)
Chun HD, Kim JS, Yoon S, Kim CG, Korean J. Chem. Eng., 18(6), 908 (2001)
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)
Lim TH, Kim SD, J. Chem. Eng., 19(6), 1072 (2002)
Mattews RW, Water Res., 24, 653 (1990)
Mazzarino I, Piccinini P, Spinelli L, Catal. Today, 48(1-4), 315 (1999)
Ministry of Health Singapore, http://www.gov.sg/moh/mohiss/poison/rhodam.html (2002)
Na YS, The Treatment of Nonbiodegradable Wastewater by TiO2 Photocatalytic Reactor, Ph. D. Thesis, Busan National University, (Korea), 54-135 (2002)
Nam WS, Han GY, Korean J. Chem. Eng., 20(1), 180 (2003)
Nam WS, Kim JM, Han GY, Chemosphere, 47, 1019 (2002)
Nazawa M, Tanigawa K, Hosomi M, Chikusa T, Kawada E, Water Sci. Technol., 44, 127 (2001)
Park YS, Comparison of Color Removal Between Powder and Immobilized TiO2. In: Proceedings of the Korean Environmental Sciences Society Conference, The Korean Environmental Sciences Society, May. 16-17, Chungbook Province, pp. 267-270. ISSN 1598-6268 (2003)
Pozzo RL, Baltanas MA, Cassano AE, Catal. Today, 54(1), 143 (1999)
Pozzo RL, Giombi JL, Baltanas MA, Cassano AE, Catal. Today, 62(2-3), 175 (2000)
Rachel A, Lavedrine B, Subrahmanyam M, Boule P, Catalysis Communications, 3, 165 (2002)
Schmelling DC, Gray KA, Water Res., 29, 2651 (1995)
Shifu C, Environ. Sci., 17, 33 (1996)
Shourong Z, Qingguo H, Jun Z, Bingkun W, J. Photochem. Photobiol. A-Chem., 108, 235 (1997)
Spadary JT, Isebelle L, Renganathan V, Environ. Sci. Technol., 28, 1389 (1994)
Sunada F, Heller A, Environ. Sci. Technol., 32, 282 (1998)
Takeda N, Iwata N, Torimoto T, Yoneyama H, J. Catal., 177(2), 240 (1998)
Tang WZ, An H, Chemosphere, 31, 4157 (1995)
Turchi CS, Ollis DF, J. Catal., 119, 483 (1989)
You YS, Chung KH, Kim JH, Seo G, Korean J. Chem. Eng., 18(6), 924 (2001)
Zhu C, Wang L, Kong L, Yang Z, Wang L, Zheng S, Chen F, MaiZhi F, Zong H, Chemosphere, 41, 303 (2000)

[Referenced By]

[1] Ahn KB, Na SN, Park YS, Korean Soc. Environ. Eng., 26(10), 1063 (2004)

[2] Bhatkhande DS, Pangarkar VG, Beenackers AACM, Water Res., 37, 1223 (2003)

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

[4] Chun HD, Kim JS, Yoon S, Kim CG, Korean J. Chem. Eng., 18(6), 908 (2001)

[5] 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)

[6] Lim TH, Kim SD, J. Chem. Eng., 19(6), 1072 (2002)

[7] Mattews RW, Water Res., 24, 653 (1990)

[8] Mazzarino I, Piccinini P, Spinelli L, Catal. Today, 48(1-4), 315 (1999)

[9] Ministry of Health Singapore, http://www.gov.sg/moh/mohiss/poison/rhodam.html (2002)

[10] Na YS, The Treatment of Nonbiodegradable Wastewater by TiO2 Photocatalytic Reactor, Ph. D. Thesis, Busan National University, (Korea), 54-135 (2002)

[11] Nam WS, Han GY, Korean J. Chem. Eng., 20(1), 180 (2003)

[12] Nam WS, Kim JM, Han GY, Chemosphere, 47, 1019 (2002)

[13] Nazawa M, Tanigawa K, Hosomi M, Chikusa T, Kawada E, Water Sci. Technol., 44, 127 (2001)

[14] Park YS, Comparison of Color Removal Between Powder and Immobilized TiO2. In: Proceedings of the Korean Environmental Sciences Society Conference, The Korean Environmental Sciences Society, May. 16-17, Chungbook Province, pp. 267-270. ISSN 1598-6268 (2003)

[15] Pozzo RL, Baltanas MA, Cassano AE, Catal. Today, 54(1), 143 (1999)

[16] Pozzo RL, Giombi JL, Baltanas MA, Cassano AE, Catal. Today, 62(2-3), 175 (2000)

[17] Rachel A, Lavedrine B, Subrahmanyam M, Boule P, Catalysis Communications, 3, 165 (2002)

[18] Schmelling DC, Gray KA, Water Res., 29, 2651 (1995)

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

[20] Shourong Z, Qingguo H, Jun Z, Bingkun W, J. Photochem. Photobiol. A-Chem., 108, 235 (1997)

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

[22] Sunada F, Heller A, Environ. Sci. Technol., 32, 282 (1998)

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

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

[25] Turchi CS, Ollis DF, J. Catal., 119, 483 (1989)

[26] You YS, Chung KH, Kim JH, Seo G, Korean J. Chem. Eng., 18(6), 924 (2001)

[27] Zhu C, Wang L, Kong L, Yang Z, Wang L, Zheng S, Chen F, MaiZhi F, Zong H, Chemosphere, 41, 303 (2000)