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2002 | 05 | 2 |
Tytuł artykułu

Spectroscopic studies on UVC-induced photodegradation of humic acids

Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The effect of UV radiation on absorption, fluorescence spectra and dynamics of phototransformation of five different humic acids (HA) of natural and synthetic origin were investigated. Two types of synthetic HA were prepared: one containing only C, H and O atoms, and another with content of C, H, O and N atoms. Natural HA were also diversified with respect to their origin. We used UV-C radiation (predominantly the wavelength of 254 nm) to provide a wide spectrum of photochemical mechanisms.
Wydawca
-
Rocznik
Tom
05
Numer
2
Opis fizyczny
http://www.ejpau.media.pl/series/volume5/issue2/environment/art-05.html
Twórcy
autor
  • August Cieszkowski Agricultural University of Poznan, Wojska Polskiego 38/42, 60-637 Poznan, Poland
autor
autor
autor
autor
Bibliografia
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  • Elbanowski M., Lisicki E., Slawinska D., Slawinski J., Ciesla L., 1981. Application of an electrodeless discharge mercury lamp in the photochemical flow reactor., Optica Applicata., 11: 523-527.
  • Frimmel F. H., Christman R. F., 1988. "Humic substances and their role in the environment.",. 1988, Chichester, New York, Singapore.: John Wiley & Sons.
  • Fukushima M., Tatsumi K., Nagao S., 2001. Degradation characteristics of humic acid during photo-Fenton processes, Environ Sci Technol., 35(18): 3683-3690.
  • Hongve D., Dahlback A., 1997. "On the efficiency of solar UV radiation on degradation of aquatic humic substances." In:, Drozd J. et al.Gonet S.S. et al.Senesi M., Weber J., Editors, The role of Humic Substances in the Ecosystems and in Environmental Protection., Wrocław PTSH-Polish Soc. Humic Substances: 1997. p. 595-602.
  • Kandrac J., Hutta M., Foltin M., 1996. Preparation and characterization of humic and fulvic acid working standarts - practical experience., J.Radioanalyt. and Nuclear Chem., 208(2): 577-591.
  • Matthews B. J. H. , Jones A. C. , Theodorou N. K., Tudhope A. W., 1996. Excitation-emission-matrix fluorescence spectroscopy applied to humic acid bands in coral reefs, Marine Chem., 55: 317-332.
  • Miller W. L., Zepp R. G.,1995. Photochemical production of dissolved inorganic carbon from terrestial organic metal: significance to the ocenic organic C-cycle, Geophys. Res. Lett., 22: 417-420.
  • Pompe S. , Bubner M. , Denecke M. A. , Reich T. , Brachmann A. , Geipel G., Nicolai R., Heise K.-H., Nitsche H., 1996. A comparison of natural humic acid with synthetic humic acid, Radiochim. Acta, 74: 135-140.
  • Provenzano M. R., Sposito G., 1994. "Application of two-dimensional fluorescence spectroscopy to the study of pine litter in different ecosystems" In: Senesi N. , Miano T.M., Editors, Humic substances in the global environment and implication on human healthElsevier: 1994. p. 335-342.
  • Puzyna W., Sławinski J., Sławinska D., 1984. The mechanism of light-induced chemiluminescence of humic acids., Zesz. Problem. Postępów Nauk Rolniczych, 271: 337-345.
  • Schulten H. R., Schnitzer M., 1995. Three-dimensional models for humic acids and soil organic matter, Natur & Wissenschaften, 82: 487-498.
  • Schulten H. R., Thomsen M., Carlsen L., 2001. Humic complexes of diethyl phthalate: molecular modelling of the sorption process, Chemosphere, 45(3): 357-369.
  • Senesi N., Miano T. M., 1994. "Humic substances in the global environment and implications on human health.", 1994, Amsterdam, London, New York, Tokyo.: Elsevier.
  • Sławinska D., Michalska T., 1978. "Singlet oxygen and chemiluminescence in the oxidation of polymers resembling humic acids." In: Ranby B., Rabek J.F., Editors , Singlet oxygen. Reactions with organic compounds and polymers. Chichester, New York John Wiley & Sons: 1978. p. 294-301.
  • Sławinska D., Sławinski J., 1967. Chemiluminescence of humic acids, Nature, 213: 903-904.
  • Sławinska D., Sławinski J., 1970. Chemiluminescence in the processes of oxidative degradation of humic acids I. Kinetics and spectral distribution of luminescence., Polish J. Chem., 44: 2415-2424.
  • Sławinska D., Sławinski J., 1975. Specrtoscopic studies on mild oxidation of humus acids., Polish J. Soil Sci., 8: 38-57.
  • Sławinska D., Sławinski J., Cieśla L., 1983. The inhibition of peroxyradical induced chemiluminescence by melanins., Physiol. Chem. Phys Medical NMR,. 15: 209-222.
  • Sławinska D., Sławinski J., Sarna T., 1975. Photoinduced luminescence and ESR signals of polyphenols and quinone-polymers., Photochem. Photobiol. 21, 393-396.,. 21: 393-396.
Typ dokumentu
Bibliografia
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