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Fotochemiczny rozkład sulfadiazyny
Języki publikacji
Abstrakty
The photochemical degradation of the sulfadiazine (SDZ) was studied. The photochemical processes used in degradation of SDZ were UV and UV/H2O2. In the experiments hydrogen peroxide was applied at different concentrations: 10 mg/dm3 (2.94*10-4 M), 100 mg/dm3 (2.94*10-3 M), 1 g/dm3 (2.94*10-2 M) and 10 g/dm3 (2.94*10-1 M). The concentrations of SDZ during the experiment were controlled by means of HPLC. The best results of sulfadiazine degradation, the 100% removal of the compound, were achieved by photolysis using UV radiation in the presence of 100 mg H2O2/dm3 (2.94*10-3 M). The determined rate constant of sulfadiazine reaction with hydroxyl radicals kOH was equal 1.98*109 M-1s-1.
W ramach niniejszego eksperymentu przeprowadzono fotochemiczny rozkład sulfadiazyny (SDZ). Rozkład sulfadiazyny był realizowany z wykorzystaniem procesów UV oraz UV/H2O2. W badaniach użyto nadtlenek wodoru w następujących stężeniach: 10 mg/dm3 (2.94*10-4 M), 100 mg/dm3 (2.94*10-3 M), 1 g/dm3 (2.94*10-2 M) oraz 10 g/dm3 (2.94*10-1 M). Zmiany stężenia SDZ obserwowano przy wykorzystaniu HPLC. Najlepsze rezultaty rozkładu sulfadiazyny, 100% usunięcie badanej substancji, zaobserwowano w procesie fotolizy przy obecności 100 mg H2O2/dm3 (2.94*10-3 M). Stała szybkości reakcji sulfadiazyny z rodnikami hydroksylowymi kOH wynosiła 1.98*109 M-1s-1.
Czasopismo
Rocznik
Tom
Strony
79--91
Opis fizyczny
Bibliogr. 36 poz., tab., wykr.
Twórcy
autor
- Silesian University of Technology, Environmental Biotechnology Department, Akademicka 2, 44-100 Gliwice, Poland
autor
- Silesian University of Technology, Environmental Biotechnology Department, Akademicka 2, 44-100 Gliwice, Poland
autor
- Silesian University of Technology, Environmental Biotechnology Department, Akademicka 2, 44-100 Gliwice, Poland
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-efb7e16d-d112-4837-bef8-669997e15658