Photooxidation of Fe(III)-EDTA on TiO<sub>2</sub> I: The Effects of TiO<sub>2</sub> Loading and Initial pH of Solution

Hung-Ho Chung; Jae-Seong Rho

Journal of Industrial and Engineering Chemistry, Vol.5, No.2, 81-86, June, 1999

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Photooxidation of Fe(III)-EDTA on TiO₂ I: The Effects of TiO₂ Loading and Initial pH of Solution

Hung-Ho Chung^†, and Jae-Seong Rho

Department of Industrial Chemistry, Chungnam National University, Taejon 305-764, Korea

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The photooxidation of Fe(III)-EDTA on TiO₂ regarding the effects of TiO2 loading weight and initial pH of the solution were investigated in our laboratories under an aerobic condition at 20 ℃ with TiO₂ (Degussa P-25) and 1.79 mM of Fe(III)-EDTA. When the TiO₂ ldkoading weight was 2.0 g/L at 7250 turbidity (NTU), the photocatalytic oxidation and reduction of Fe(III)-EDTA was maximal. The tendency of the EDTA adsorption onto the catalyst surface was affected by the change of TiO₂ surface charge according to the initial pH change of the solution, and the oxidation rate of Fe(III)-EDTA by photo-catalysis was shown to depend upon the tendency of EDTA adsorption before photo-irradiation.

Keywords:EDTA(ethylenediaminetetraacetic acid);TiO₂;photo-catalytic oxidation;water treatment technology

[References]

Pleskov YV, Gurevich YY, Semiconductor Photoelectrochemistry, P.N. Bartlett Ed., pp. 63-114, Consultants Bureau, New York (1986)
Pelizzetti E, Schiavello M, Photochemical Conversion and Storage of Solar Energy, pp. 1-26, Kluwer, Dordrecht (1991)
Roundhill DM, Photochemistry and Photophyscis of Metal Complexes, J.P. Fackler, Ed., pp. 1-24, Plenum Press, New York (1994)
Schiavello M, Photocatalysis and Environment Trends and Applications, pp. 351-360, Kluwer, Dordrecht (1988)
Anpo M, Surface Photochemistry, pp. 1-17, Wiley, Chichester (1996)
Schiavello M, Photoelectrochemistry, Photocatalysis and Photoreactors - Fundamentals and Developments, pp. 39-106, Reidel, Dordrecht (1984)
Hoffmann MR, Martin ST, Choi WY, Bahnemann DW, Chem. Rev., 95(1), 69 (1995)
Cherry KF, Plating Wastewater Treatment; Ann Arbor Science Publishers, Ann Arbor, pp. 1-72 (1982)
Ayres JA, Decontamination of Nuclear Reactors and Equipment, Ronald Press, New York, pp.6-33 (1970)
Thomas HM, Abhaya KD, Melissa F, Environ. Sci. Technol., 31, 3475 (1997)
Xue H, Sigg L, Kari FG, Environ. Sci. Technol., 29, 59 (1995)
Bhattacharyya D, Ku Y, Sulfide Precipitation of Heavy Metals: U.S. Government Printing Office: Washington D.C., EPA-600/S2-84-023 (1984)
Kari FG, Ph.D. Thesis, No. 10698, Swiss Federal Institue of Technology, ETH, Zurich, Switzerland (1994)
Abdullah M, Low GKC, Matthews RW, J. Phys. Chem., 94, 6820 (1990)
Leyva E, Moctezuma E, Ruiz MG, Torres-Martinez L, Catal. Today, 40(4), 367 (1998)
Legrini O, Oliveros E, Braun AM, Chem. Rev., 93, 671 (1993)
Linsebigler AL, Lu GQ, Yates JT, Chem. Rev., 95(3), 735 (1995)
Rajeshwar K, J. Appl. Electrochem., 25(12), 1067 (1995)
Okamoto K, yamamoto Y, Tanaka H, Tanaka M, Itaya A, Bull. Chem. Soc. Jpn., 58, 2015 (1985)
Nohana K, Hidaka H, Pelizzethi E, Serpone N, J. Photochem. Photobiol. A-Chem., 12, 265 (1997)
Matthews RW, J. Catal., 111, 264 (1988)
Matthews RW, J. Chem. Soc.-Faraday Trans., 80, 457 (1984)
Borgarello E, Harris R, Serpone N, Nouv. J. Chim., 9, 743 (1985)

[Referenced By]

[1] Pleskov YV, Gurevich YY, Semiconductor Photoelectrochemistry, P.N. Bartlett Ed., pp. 63-114, Consultants Bureau, New York (1986)

[2] Pelizzetti E, Schiavello M, Photochemical Conversion and Storage of Solar Energy, pp. 1-26, Kluwer, Dordrecht (1991)

[3] Roundhill DM, Photochemistry and Photophyscis of Metal Complexes, J.P. Fackler, Ed., pp. 1-24, Plenum Press, New York (1994)

[4] Schiavello M, Photocatalysis and Environment Trends and Applications, pp. 351-360, Kluwer, Dordrecht (1988)

[5] Anpo M, Surface Photochemistry, pp. 1-17, Wiley, Chichester (1996)

[6] Schiavello M, Photoelectrochemistry, Photocatalysis and Photoreactors - Fundamentals and Developments, pp. 39-106, Reidel, Dordrecht (1984)

[7] Hoffmann MR, Martin ST, Choi WY, Bahnemann DW, Chem. Rev., 95(1), 69 (1995)

[8] Cherry KF, Plating Wastewater Treatment; Ann Arbor Science Publishers, Ann Arbor, pp. 1-72 (1982)

[9] Ayres JA, Decontamination of Nuclear Reactors and Equipment, Ronald Press, New York, pp.6-33 (1970)

[10] Thomas HM, Abhaya KD, Melissa F, Environ. Sci. Technol., 31, 3475 (1997)

[11] Xue H, Sigg L, Kari FG, Environ. Sci. Technol., 29, 59 (1995)

[12] Bhattacharyya D, Ku Y, Sulfide Precipitation of Heavy Metals: U.S. Government Printing Office: Washington D.C., EPA-600/S2-84-023 (1984)

[13] Kari FG, Ph.D. Thesis, No. 10698, Swiss Federal Institue of Technology, ETH, Zurich, Switzerland (1994)

[14] Abdullah M, Low GKC, Matthews RW, J. Phys. Chem., 94, 6820 (1990)

[15] Leyva E, Moctezuma E, Ruiz MG, Torres-Martinez L, Catal. Today, 40(4), 367 (1998)

[16] Legrini O, Oliveros E, Braun AM, Chem. Rev., 93, 671 (1993)

[17] Linsebigler AL, Lu GQ, Yates JT, Chem. Rev., 95(3), 735 (1995)

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

[19] Okamoto K, yamamoto Y, Tanaka H, Tanaka M, Itaya A, Bull. Chem. Soc. Jpn., 58, 2015 (1985)

[20] Nohana K, Hidaka H, Pelizzethi E, Serpone N, J. Photochem. Photobiol. A-Chem., 12, 265 (1997)

[21] Matthews RW, J. Catal., 111, 264 (1988)

[22] Matthews RW, J. Chem. Soc.-Faraday Trans., 80, 457 (1984)

[23] Borgarello E, Harris R, Serpone N, Nouv. J. Chim., 9, 743 (1985)