The kinetics study of the photodegradation of chlorophenols in aquatic environment

• Autorzy: Czaplicka M.
• Języki publikacji: EN

Abstrakty

EN

The rates of photolysis degradation of 3-chlorophenol, 2,4-dichlorophenol, pentachlorophenol in an aqueous solution were determined. The results obtained show that under the experiments conditions, the rate constants decreased in the PCP > 2,4-DCP> 3-CP order. The quantum yields of the photolysis for the selected chlorophenols at 254 nm were also studied. The kinetic curves, the reaction rate and the rate constant reaction of the photodegradation of chlorophenols were presented. The main photodegradation pathways and primary products were identified.

Słowa kluczowe

EN

3-chlorophenol; 2,4-chlorophenol; pentachlorophenol; photodegradation reaction; kinetic study

PL

3-chlorofenol; 2,4-chlorofenol; pięciochlorofenol; fotodegradacja

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2005
• Tom: Vol. 7, nr 1
• Strony: 8--12
• Opis fizyczny: Bibliogr. 13 poz., tab., rys.

Twórcy

autor

Czaplicka M.

• Institute of Non-Ferrous Metals, ul. Sowińskiego 5, 44-101 Gliwice

Bibliografia

• (1) Czaplicka M., Sources and transformation of chlorophenols in the natural environment. The Science of the Total Environment, 2004, 322, 21.
• (2) Boule P., Guyon C., Lemaire J., Chemosphere, Photo-chemistry and environment IV - Photochemical behaviour of monochlorophenols in dilute aqueous solution. 1982, 11, 1179.
• (3) Boule P., Guyon C., Lemaire J., Chemosphere, Photochimie et environnemeny VIII - Comportement photochimique de dichlorophcnols en solution aqueuse diluee. 1984, 13, 603.
• (4) Skurlatov Y.I., Ernestova L.S., Vichutinskaya E.V., Samsonov D.P., Semenova I.V., Rod'ko I.Y., Shvidky V.O., Pervunina R.I., Kemp T.J., Photochemical transformation of polychlorinated phenols. J. Photochem. Photobiolog. 1997, 107, 207.
• (5) Hugül M., Apak R., Demirci S., Modeling the kinetics of UV/hydrogen peroxide oxidation of some mono-, di- and trichlorophenols J Hazardous Materials, 2000, B77, 193.
• (6) Shen Y.-S., Ku Y., Lec K.-Ch., The effect of light absorbance on the decomposition of chlorophenols by ultra-violet radiation and UV/H20, processes Water. Res. 1995, 29, 907.
• (7) Murov S.L. Handbook of photochemistry, M. Dekker New York 1973.
• (8) Czaplicka M. Determination of phenols and chlorophenols in bottom sedmiments, Chromatographia, 2001, 53, S-470.
• (9) Moza P.N., Fytianos K., Samanidou V., Korte T.F., Photocomposition of chlorophenols in aąueous medium in presence of hydrogen peroxide. Buli. Environ. Contam. Toxicol 1988, 41, 678.
• (10) Da Silva J.P., Ferreira L.F., Da Siva A.M., Aqueous photochemistry of pesticides triadimenol. J. Photochem. Photobiol. 2003, 154, 293.
• (11) Benitez F.J., Acero J.L., Real F.J., Garcia J. Kinetics of photodegradation of pentachlorophenols. Chemosphere. 2003, 51, 651.
• (12) Czaplicka M., Effect of solvent properties on the kinetics of 3-chlorophenol photodegradation. Inżynieria Chemiczna i Procesowa, 2004, 25, 483.
• (13) Akai N., Kudoh S., Takayanagi M., Nakata M., Photoreaction mechanisms of 2-chlorophenol and its multiple chloro-substituted derivatives studied by low-temperature matix-isolation infrared spectroscopy and density-functional-theory calculations J Photochem. Photobiol. 2001, 146, 49.