Co(III)/Co(II) 및 Fe(III)/Fe(II) 산화환원계에 의한 고분자량 폴리에텔렌글리콜류의 매개전해산화

박승조; 김익성; Seung-Cho Park; Ik-Seong Kim

Journal of the Korean Industrial and Engineering Chemistry, Vol.16, No.2, 206-211, April, 2005

Export Citation

Co(III)/Co(II) 및 Fe(III)/Fe(II) 산화환원계에 의한 고분자량 폴리에텔렌글리콜류의 매개전해산화

Mediated Electrochemical Oxidation of High Molecular Weight PEGs by Co(III)/Co(II) and Fe(III)/Fe(II) Redox Systems

박승조^†, 김익성¹

동아대학교 환경공학과
¹부산광역시 상수도사업본부 화명정수사업수

Seung-Cho Park^†, and Ik-Seong Kim¹

Department of Environmental Engineering, Dong-A University, Busan 604-714, Korea
¹Hwamyeong Water Purification Office, Water Works HQ Busan Metropolitan City, Busan 611-830, Korea

E-mail:

초록

백금과 티탄늄-이리듐전극으로 0.5 M의 철(II)과 코발트(II) 이온을 함유한 8.0 M의 질산용액 중에서 분자량이 1000, 4000, 20000인 폴리에틸렌글리콜류의 매개전해산화를 하였다. Fe(III)/Fe(II)와 Co(III)/Co(II) 산화환원계를 이용하여 전류밀도, 전극종, 전해질농도, 제거효율 등을 검토하였다. 백금전극 상에서 0.67 A/Cm2의 전류밀도로 180~210 min 간 Fe(III)/Fe(II)와 Co(III)/Co(II) 전해환원계에서 매개전해산화에 의하여 폴리에틸렌글리콜류는 탄산가스로 분해되었다. 매개전해산화시 폴리에틸렌글리콜류의 제거효율은 Fe(III)/Fe(II) 산화환원계보다 Co(III)/Co(II) 산화환원계가 우수하였고 분자량이 1000, 4000, 20000인 폴리에틸렌글리콜류의 매개전해산화 제거효율은 100%이었다.

Mediated electrochemical oxidation (MEO) of polyethylene glycols (PEGs) of molecular weight of 1000, 4000 and 20000, was carried out on both platinum (Pt) and titanium-iridium electrodes in 8.0 M nitric acid solution containing 0.5 M Fe(II) and Co(II) ion. The electrochemical parameters such as current densities, kinds of electrode, electrolyte concentration and removal efficiency were investigated in both Fe(III)/Fe(II) and Co(III)/Co(II) redox systems. The PEGs was decomposed into carbon dioxide by MEO in Fe(III)/Fe(II) and Co(III)/Co(II) redox system during 180 min and 210 min at the current density of 0.67 A/cm2 on the Pt electrode. Removal efficiency of PEGs by MEO was better in Co(III)/Co(II) redox system than Fe(III)/Fe(II) redox system, indicating mediated electrochemical removal efficiency was 100%

Keywords:polyethylene glycol;Fe(III)/Fe(II) redox;Co(III)/Co(II) redox;mediated electrochemical oxidation;supporting electrolyte

[References]

Hains JR, Alexander M, Appl. Microbiol. Biotechnol., 29, 621 (1975)
Obradors N, Aguilar J, Appl. Environ. Microbiol., 57, 2383 (1991)
Suzuki J, Stieb M, Pelobacter venetianus sp. nov., 45, 1905 (1976)
Otal E, Mantzavinos D, Delgado MV, Hellenbrand R, Lebrato J, Metcalfe IS, Livingston AG, J. Chem. Technol. Biotechnol., 70(2), 147 (1997)
Kim IS, Choi SW, Heo CD, Park SC, J. Korean Ind. Eng. Chem., 13(1), 33 (2002)
Kim IS, Park SC, J. Kor. Soc. Env. Engs., 24, 1595 (2002)
Park SC, Jin CJ, Kim IS, J. Korean Solid Waste Engin. Soc., 20, 10 (2003)
Park SC, Shon JH, Nam CW, J. KIChE, 22, 31 (1984)
Stevenson DG, Analyst, 79, 504 (1954)
Fusako K, Tadashi O, Tetsuya S, J. Ferment. Technol., 63, 239 (1985)

[Referenced By]

[1] Hains JR, Alexander M, Appl. Microbiol. Biotechnol., 29, 621 (1975)

[2] Obradors N, Aguilar J, Appl. Environ. Microbiol., 57, 2383 (1991)

[3] Suzuki J, Stieb M, Pelobacter venetianus sp. nov., 45, 1905 (1976)

[4] Otal E, Mantzavinos D, Delgado MV, Hellenbrand R, Lebrato J, Metcalfe IS, Livingston AG, J. Chem. Technol. Biotechnol., 70(2), 147 (1997)

[5] Kim IS, Choi SW, Heo CD, Park SC, J. Korean Ind. Eng. Chem., 13(1), 33 (2002)

[6] Kim IS, Park SC, J. Kor. Soc. Env. Engs., 24, 1595 (2002)

[7] Park SC, Jin CJ, Kim IS, J. Korean Solid Waste Engin. Soc., 20, 10 (2003)

[8] Park SC, Shon JH, Nam CW, J. KIChE, 22, 31 (1984)

[9] Stevenson DG, Analyst, 79, 504 (1954)

[10] Fusako K, Tadashi O, Tetsuya S, J. Ferment. Technol., 63, 239 (1985)