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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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For the last couple of decades, the Fenton (-like) systems have been extensively studied for oxidation of organic contaminants in water. Recently, zero-valent iron (ZVI) has received attention as a Fenton catalyst as well as a reducing agent capable of producing reactive oxidants from oxygen. In this study, the ZVI-based Fenton reaction was assessed for the oxidative degradation of phenol using $ZVI/O_2$, $ZVI/H_2O_2$, ZVI/Oxalate/$O_2$ and hv/ZVI/Oxalate/$O_2$ systems. Reaction parameters such as pH and reagent dose (e.g., ZVI, $H_2O_2$, and oxalate) were examined. In the presence of oxalate (ZVI/Oxalate/$O_2$ and hv/ZVI/Oxalate/$O_2$ systems), the degradation of phenol was greatly enhanced at neutral pH values. It was found that ZVI accelerates the Fenton reaction by reducing Fe(III) into Fe(II). The conversion of Fe(III) into Fe(II) by ZVI was more stimulated at acidic pH than at near-neutral pH values.
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참고문헌 (23)
참고문헌 신청
Agrawal, A. / 1996 / Reduction of nitro aromatic compounds by zero-valent iron metal / Environ. Sci. Technol. 30(1):153~160
Buxton, G. V. / 1988 / Critical review of rate constants for reactions of hydrated electrons, hydrogen atoms and hydroxyl radicals in aqueous solution / J. Phys. Chem. Ref. Data 17(2):513~886
Eisenberg, G. / 1943 / Colorimetric determination of hydrogen peroxide / Ind. Eng. Chem. Anal. Ed. 15(5):327~328
Hatchard, C.G. / 1956 / A new sensitive chemical actinometer. II. Potassium ferrioxalate as a standard chemical actinometer / Proc. Roy. Soc. Lon. A 235(1203):518~536
Jeong, J. / 2005 / pH effect on OH radical production in photo/ferrioxalate system / Water Res. 39(13):2893~2900
Buxton, G. V. / 1988 / Critical review of rate constants for reactions of hydrated electrons, hydrogen atoms and hydroxyl radicals in aqueous solution / J. Phys. Chem. Ref. Data 17(2):513~886
Eisenberg, G. / 1943 / Colorimetric determination of hydrogen peroxide / Ind. Eng. Chem. Anal. Ed. 15(5):327~328
Hatchard, C.G. / 1956 / A new sensitive chemical actinometer. II. Potassium ferrioxalate as a standard chemical actinometer / Proc. Roy. Soc. Lon. A 235(1203):518~536
Jeong, J. / 2005 / pH effect on OH radical production in photo/ferrioxalate system / Water Res. 39(13):2893~2900
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