Zastosowanie katalizatora heterogenicznego ZCu w procesie foto-Fentona

• Autorzy: Świderska-Dąbrowska R. , Schmidt R.

Warianty tytułu

EN

Application of the ZCu heterogeneous catalyst in the photo-Fenton process

• Języki publikacji: PL

Abstrakty

PL

W artykule przedstawiono wyniki badań utleniania fenolu w roztworze wodnym z zastosowaniem katalizatora heterogenicznego, zeolitu modyfikowanego jonami Cu(II) w układzie ZCu + H₂O₂ + UV. Badania wykazały, że efektywność utleniania fenolu jest wyższa w układzie heterogenicznym w porównaniu do homogenicznego. Przy zastosowaniu katalizatora heterogenicznego ZCu następuje utlenianie fenolu głównie do pirokatechiny i hydrochinonu, a ich stężenia po 60 minutach reakcji są prawie trzykrotnie większe w porównaniu do katalizy homogenicznej. Analiza uzyskanych wyników wskazuje na inny mechanizm utleniania przy zastosowaniu heterogenicznego katalizatora ZCu. Wyniki analiz chromatograficznych potwierdziły, że fenol utlenia się z całkowitym zniszczeniem struktury pierścieniowej do kwasu mrówkowego, który następnie utleniany jest do CO₂ i H₂0.

EN

The paper presents results of research on phenol oxidation in the aąueous solution with application of heterogeneous catalyst, zeolite modified with Cu(II) ions in the ZCu + H₂O₂ + UV configuration. Results proved that phenol oxidation efficiency is higher in the heterogeneous configuration compared to homogeneous. During application of ZCu heterogeneous catalyst phenol is oxidized mostly to catechol and hydroquinone, and their concentrations, after 60 minutes of reaction time, are almost three times higher, in comparison with homogeneous catalysis. Analysis of obtained results shows different mechanism of oxidation with heterogeneous ZCu catalyst applied. Results of chromatographic analyses proved that phenol is oxidized with complete destruction of ring structure to formic acid, which is next oxidized to CO₂ and H₂0.

Słowa kluczowe

PL

zeolit modyfikowany; kataliza heterogeniczna; degradacja fenolu; foto Fenton

EN

Cu modified zeolite; heterogeneous catalysis; phenol degradation; photo-Fenton process

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Gaz, Woda i Technika Sanitarna
• Rocznik: 2014
• Tom: Nr 7
• Strony: 279--283
• Opis fizyczny: Biblior. 30 poz., rys., tab.

Twórcy

autor

Świderska-Dąbrowska R.

• Wydział Inżynierii Lądowej, Środowiska i Geodezji, Politechnika Koszalińska, ul. Śniadeckich 2, 75-453 Koszalin, Polska

autor

Schmidt R.

• Powiatowa Stacja Sanitarno-Epidemiologiczna w Koszalinie, Zwycięstwa 136, 75-613 Koszalin, Polska

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