Determination of hydroxyl radical rate constants in a continuous flow system using competition kinetics

Bum Gun Kwon; Seongyun Ryu; Jeyong Yoon

Journal of Industrial and Engineering Chemistry, Vol.15, No.6, 809-812, November, 2009

DOI10.1016/j.jiec.2009.09.004 Export Citation

Determination of hydroxyl radical rate constants in a continuous flow system using competition kinetics

Bum Gun Kwon^†, Seongyun Ryu¹, and Jeyong Yoon

School of Chemical and Biological Engineering, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul 151-744, Republic of Korea
¹Environment Research Team, Hyundai Steel R&D Center, Hyundai Steel Co., 167-32 Godae-ri, Songak-myun, Dangjin-gun, Chungnam 343-823, Republic of Korea

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It is important to determine reaction kinetics of the hydroxyl radical ('OH) with various water pollutants for understanding advanced oxidation processes (AOPs). Hence, a simple competition kinetics in a continuous flow system was employed to determine the second-order rate constants of 'OH with 14 organic and inorganic solutes selected in this study. In this method, p-nitrosodimethylaniline (PNDA) was specifically employed as a well-known reference probe for 'OH, which gave a competitive relationship between the PNDA and each solute over 'OH radicals. PNDA decay with 'OH radicals obeyed reaction kinetics in a first-order as long as the initial concentrations of H2O2 and PNDA were less than 30 mM and 2 mM, respectively. The second-order rate constants of 'OH radical with 14 solutes obtained in this study were found to be consistent with literature values using pulse radiolysis method.

Keywords:Hydroxyl radical;Second-order rate constant;Competition kinetics;p-Nitrosodimethylaniline (PNDA)

[References]

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Glaze WH, Kang JW, Ind. Eng. Chem. Res., 28, 1580 (1989)
Mabury SA, Crosby DG, J. Agric. Food Chem., 44, 1920 (1996)
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Yoon SH, Lee JH, J. Ind. Eng. Chem., 13(1), 97 (2007)
Peyton GR, Glaze WH, Environ. Sci. Technol., 22, 761 (1988)
Sedlak DL, Andren AW, Environ. Sci. Technol., 25, 1419 (1991)
Haag WR, Yao CCD, Environ. Sci. Technol., 26, 1005 (1992)
Kochany J, Bolton JR, Environ. Sci. Technol., 26, 262 (1992)
Huang J, Mabury SA, Environ. Toxicol. Chem., 19, 1501 (2000)
Rabani J, Matheson MS, J. Phys. Chem., 70, 761 (1966)
Willson RL, Greenstock CL, Adams GE, Wageman R, Dorfman LM, Int. J. Radiat. Phys. Chem., 3, 211 (1971)
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Baxendale JH, Khan AA, Int. J. Radiat. Phys. Chem., 1, 11 (1969)
Hatada M, Kraljic I, El Samahy A, Trumbore CN, J. Phys. Chem., 78, 888 (1974)
Godfrey T, Kobrin RJ, Fanning JE, El Samahy A, Trumbore CN, J. Phys. Chem., 79, 316 (1975)
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Neta P, Huie RE, Ross AB, J. Phys. Chem. Ref. Data, 17 (1988)

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[1] Hoigne J, Bader H, Science, 190, 782 (1975)

[2] Hoigne J, Bader H, Water Res., 10, 377 (1976)

[3] Glaze WH, Kang JW, Ind. Eng. Chem. Res., 28, 1580 (1989)

[4] Mabury SA, Crosby DG, J. Agric. Food Chem., 44, 1920 (1996)

[5] Huber MM, Canonica S, Park GY, von Gunten V, Environ. Sci. Technol., 37, 1016 (2003)

[6] Buxton GV, Greenstock CL, Helman WP, Ross AB, J. Phys. Chem. Ref. Data, 17 (1988)

[7] Tanarungsun G, Kiatkittipong W, Assabumrungrat S, Yamada H, Tagawa T, Praserthdam P, J. Ind. Eng. Chem., 13(3), 444 (2007)

[8] Yoon SH, Lee JH, J. Ind. Eng. Chem., 13(1), 97 (2007)

[9] Peyton GR, Glaze WH, Environ. Sci. Technol., 22, 761 (1988)

[10] Sedlak DL, Andren AW, Environ. Sci. Technol., 25, 1419 (1991)

[11] Haag WR, Yao CCD, Environ. Sci. Technol., 26, 1005 (1992)

[12] Kochany J, Bolton JR, Environ. Sci. Technol., 26, 262 (1992)

[13] Huang J, Mabury SA, Environ. Toxicol. Chem., 19, 1501 (2000)

[14] Rabani J, Matheson MS, J. Phys. Chem., 70, 761 (1966)

[15] Willson RL, Greenstock CL, Adams GE, Wageman R, Dorfman LM, Int. J. Radiat. Phys. Chem., 3, 211 (1971)

[16] Elliot AJ, Simsons AS, Radiat. Phys. Chem., 24, 229 (1984)

[17] Volkert O, Schulte-Frohlinde D, Tetrahedron Lett., 17, 2151 (1968)

[18] Kraljic I, Trumbore CN, J. Am. Chem. Soc., 87, 2547 (1965)

[19] Dainton FS, Wiseall B, Trans. Faraday Soc., 64, 694 (1968)

[20] Shah S, Trumbore CN, Giessner B, Park W, Adv. Chem. Ser., 81, 321 (1968)

[21] Baxendale JH, Khan AA, Int. J. Radiat. Phys. Chem., 1, 11 (1969)

[22] Hatada M, Kraljic I, El Samahy A, Trumbore CN, J. Phys. Chem., 78, 888 (1974)

[23] Godfrey T, Kobrin RJ, Fanning JE, El Samahy A, Trumbore CN, J. Phys. Chem., 79, 316 (1975)

[24] Kwon BG, Lee JH, Anal. Chem., 76, 6359 (2004)

[25] Amichai O, Czapski G, Treinin A, Israel J. Chem., 7, 351 (1969)

[26] Neta P, Huie RE, Ross AB, J. Phys. Chem. Ref. Data, 17 (1988)