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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-a79f426b-d3d4-4716-a354-30c035622d2a

Czasopismo

Journal of Ecological Engineering

Tytuł artykułu

Kinetics of the Photocatalytic Decomposition of Bisphenol A on Modified Photocatalysts

Autorzy Zawadzki, P.  Kudlek, E.  Dudziak, M. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
Abstrakty
EN This paper presents the evaluation of the photocatalytic kinetics of bisphenol A decomposition in the presence of commercial titanium(IV) oxide and modified photocatalysts (composites). The following modification methods were used: mechanical mixing, calcination and impregnation. The decomposition process was carried out with the addition of photocatalysts and activated carbon at doses of 100 mg/dm3and 25 mg/dm3, respectively. The photocatalytic process was performed in a reactor from the Heraeus Company (Warsaw, Poland) with a volume of 0.7 dm3. The reactor was equipped with an immersed medium-pressure mercury lamp with a power of 150 W (λ = 200–580 nm). The degree of bisphenol A decomposition was determined by chromatographic analysis preceded by solid-phase extraction SPE. The qualitative-quantitative analysis was performed using a high-performance liquid chromatograph HPLC (UV detector, λ = 218 nm) from Varian (Warsaw, Poland). The dependence of the BPA decomposition on the duration of irradiation was found, wherein the modified photocatalysts were the most effective (from 75 to 90% after 15 minutes). The order of photocatalyst efficiency has been proposed as follows: TiO2<.sub> < TiO2/AC < Cdextran-TiO2/AC < Cmethanol-TiO2/AC< Cethanol-TiO2/AC < TiO2-AC. The highest degree of decomposition was observed in the presence of TiO2/AC (99%). Numerous studies suggest that the results of the TiO2photocatalytic oxidation of organic substances fit well with the Langmuir–Hinshelwood (L–H) kinetic model. The kinetic parameters of the photocatalysis process were carried out according to the L-H model. According to the pseudo-first-order parameters, the results showed that the decomposition of bisphenol A was most intensive in the first 15 minutes of the process.
Słowa kluczowe
EN kinetics   photocatalysis   modified photocatalysts   bisphenol A  
Wydawca Polskie Towarzystwo Inżynierii Ekologicznej
Czasopismo Journal of Ecological Engineering
Rocznik 2018
Tom Vol. 19, nr 4
Strony 260--268
Opis fizyczny Bibliogr. 19 poz., rys., tab.
Twórcy
autor Zawadzki, P.
  • Silesian University of Technology, Faculty of Energy and Environmental Engineering, Institute of Water and Wastewater Engineering, Konarskiego 22B, 44-100 Gliwice, Poland, zawadzki.piotr@onet.eu
autor Kudlek, E.
  • Silesian University of Technology, Faculty of Energy and Environmental Engineering, Institute of Water and Wastewater Engineering, Konarskiego 22B, 44-100 Gliwice, Poland
autor Dudziak, M.
  • Silesian University of Technology, Faculty of Energy and Environmental Engineering, Institute of Water and Wastewater Engineering, Division of Water Supply and Sewage Systems, Konarskiego 18, 44-100 Gliwice, Poland
Bibliografia
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Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-a79f426b-d3d4-4716-a354-30c035622d2a
Identyfikatory
DOI 10.12911/22998993/89651