Bulletin of the Korean Chemical Society

  • 제25권12호
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  • Pages.1907-1910
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  • 2004
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  • 0253-2964(pISSN)
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  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Enhancing Effect of Organic Substances on Hydroxyl Radical Generation During Ozonation of Water: Stopped-Flow ESR Technique

  • Han, Sang-Kuk (Department of Marine Environmental Engineering, Faculty of Ocean System Engineering, Mokpo National Maritime University)
  • 발행 : 2004.12.20
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초록

Generation of hydroxyl radical, one of their major active species in ozonation of water was directly observed with spin-trapping/electron spin resonance (ESR) technique using 5,5-dimethyl-pyrrolidine-1-oxyl (DMPO) as a spin-trapping reagent. Hydroxyl radical was trapped with DMPO as a stable radical, DMPO-OH. 80 mM of ozone produced $1.08{\times}10^{-6}$M of DMPO-OH, indicating that 1.4% of ${\cdot}$OH is trapped with DMPO if ${\cdot}$OH is produced stoichiometrically from ozone. Humic acid suppressed DMPO-OH generation in a dose-dependent manner. Generation rate of DMPO-OH was determined with ESR/stopped-flow measurement. Phenol derivatives increased the amount and generation rate of DMPO-OH, indicating that phenol derivatives enhance·OH generation during ozonation of water.

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참고문헌

  1. Hoigne, J. The Chemistry of Ozone in Water in Process Technologiesfor Water Treatment; Stucki, S., Ed.; Plenum Press: New York,U.S.A., 1988; pp 121-143.
  2. Staehelin, J.; Hoigne, J. Environ. Sci. Technol. 1985, 19, 1206-1213. https://doi.org/10.1021/es00142a012
  3. Janzen, E. G.; Blackburn, B. J. J. Am. Chem. Soc. 1969, 91, 4481-4490. https://doi.org/10.1021/ja01044a028
  4. Utsumi, H.; Hakoda, M.; Shimbara, S.; Nagaoka, H.; Chung, Y. H.; Hamada, A. Water Sci. Technol. 1994, 30, 91-99.
  5. Bader, H.; Hoigne, J. Water Res. 1981, 15, 449-456. https://doi.org/10.1016/0043-1354(81)90054-3
  6. Han, S. K.; Ichikawa, K.; Utsumi, H. Water Res. 1998, 32(11),3261-3266. https://doi.org/10.1016/S0043-1354(98)00105-5
  7. Carmichael, A. J.; Makino, K.; Riesz, P. Radiat. Res. 1984, 100,222-234. https://doi.org/10.2307/3576343
  8. Sun, L.; Hoy, A. R.; Bolton, J. R. Adv. Oxid. Tech. 1996, 1, 44-52.
  9. Finkelstein, E.; Rosen, G. M.; Rauchkman, N. E. J. J. Am. Chem.Soc. 1980, 102, 4994-4999. https://doi.org/10.1021/ja00535a029
  10. Morioka, T.; Motoyama, N.; Hoshikawa, H.; Murakami, A.;Okada, M.; Moniwa, T. Ozone Sci. Eng. 1993, 15, 1-18.
  11. Han, S. K.; Ichikawa, K.; Utsumi, H. Water Res. 1998, 32(6),1978-1981. https://doi.org/10.1016/S0043-1354(98)00001-3
  12. Hassan, H. M. Methods Enzymol. 1984, 105, 523-532. https://doi.org/10.1016/S0076-6879(84)05072-2
  13. Staehelin, J.; Hoigne, J. Environ. Sci. Technol. 1982, 16, 676-681. https://doi.org/10.1021/es00104a009
  14. Ahn, D. S.; Jeon, I. S.; Jang, S. H.; Park, S. W.; Lee, S. G.;Cheong, W. J. Bull. Korean Chem. Soc. 2003, 24(6), 695-702. https://doi.org/10.5012/bkcs.2003.24.6.695

피인용 문헌

  1. Physical Chemistry Research Articles Published in the Bulletin of the Korean Chemical Society: 2003-2007 vol.29, pp.2, 2008, https://doi.org/10.5012/bkcs.2008.29.2.450