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2017 | 26 | 3 |

Tytuł artykułu

Photocatalytical degradation of toluene and cyclohexane using LED illumination

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
A sol-gel process followed by hydrothermal reaction was used to prepare coupled WO₃-TiO₂ photocatalysts with varying amounts of WO₃ in respect to TiO₂ (3 mol% and 5 mol% respectively). Additionally, photocatalysts have been subjected to different calcination temperatures of 400ºC and 800ºC, which allowed us to compare how these affect photodegradation efficiency. Photocatalysts were characterized under a scanning electron microscope, x-ray diffraction, and by measuring BET surface area. Photocatalytic tests have been carried out following the degradation of toluene and cyclohexane in the gas phase under LED UV light (375 nm). Elevated calcination temperature turned to enhance photocatalytical efficiency of coupled WO₃-TiO₂ while degrading the model pollutant cyclohexane. It was demonstrated that light emitting diodes (LEDs) can be used effectively as a source of illumination in photoreactors, sufficient to obtain 90% compound elimination from the air during 15 minutes of illumination while applying a well-matched photocatalyst.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

26

Numer

3

Opis fizyczny

p.1159-1164,ig.,ref.

Twórcy

autor
  • Department of Chemical Technology, Faculty of Chemistry, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland
  • Department of Chemical Technology, Faculty of Chemistry, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland
autor
  • Department of Chemical Technology, Faculty of Chemistry, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland

Bibliografia

  • 1. PERKOWSKI J., BZDON S., BULSKA A., JÓŹWIAK W.K., Decomposition of Detergents Present in Car-Wash Sewage by Titania Photo-Assisted Oxidation, Polish Journal of Environmental Studies, 15 (3) 457, 2016
  • 2. PAWAR R.C., LEE C.S., Heterogeneous Nanocomposite-Photocatalysis for Water Purifiacation, Chapter 1 – Basics of Photocatalysis, Micro & Nano Technologies Series, William Andrew Applied Science Publishers, USA, NY, 2015
  • 3. ESCH T.R., GADACZEK I., BREDOW T., Surface structures and thermodynamics of low-index of rutile,brookite and anatase – A comparative DFT study, Applied Surface Science 288, 275, 2014
  • 4. LI G., CHEN L., GRAHAM M.E., GRAY K.A., A comparison of mixed phase titania photocatalysts prepared by physical and chemical methods: The importance of the solid–solid interface, Journal of Molecular Catalysis A: Chemical 275, 30, 2007
  • 5. SOBCZYŃSKI A., DOBOSZ A., Water Purification by Photocatalysis on Semiconductors, Polish Journal of Environmental Studies, 10 (4), 195, 2001
  • 6. LUO X., LIU F., LI X., GAO H., LIU G., WO₃/TiO₂ nanocomposites: Salt–ultrasonic assisted hydrothermal synthesis and enhanced photocatalytic activity, Materials Science in Semiconductor Processing 16, 1613, 2013
  • 7. ARUTANTI O., NANDIYANTO A.B.D., OGI T., ISKANDAR F., KIM T.O., OKUYAMA K., Synthesis of composite WO₃/TiO₂ nanoparticles by flame-assisted spray pyrolysis and their photocatalytic activity, Journal of Alloys and Compounds 591, 121, 2014
  • 8. TOKODEA O., PRABHUB R., LAWTONC L.A., ROBERTSOND P.K.J., Controlled periodic illumination in semiconductor photocatalysis, Journal of Photochemistry and Photobiology A: Chemistry 319-320, 96, 2016
  • 9. CARMIGNANI G., FREDERICK L., SITKIEWITZ S., Apparatus and method for photocatalytic purification and disinfection of fluids, US Patent, US 6902653 B2, issued 2005
  • 10. MO J., ZHANG Y., XU Q., LAMSON J.J., ZHAO R., Photocatalytic purification of volatile organic compounds in indoor air: A literature review, Atmospheric Environment 43, 2229, 2009
  • 11. KAMAL M.S., RAZZAK S.A., HOSSAIN M.M., Catalytic oxidation of volatile organic compounds (VOCs). A review, Atmospheric Environment 140, 117, 2016
  • 12. BOUZAZA A., LAPLANCHE A., Photocatalytic degradation of toluene in the gas phase: comparative study of some TiO₂ supports, Journal of Photochemistry and Photobiology A: Chemistry 150, 207, 2002
  • 13. VERBRUGGENA S.W., TiO₂ photocatalysis for the degradation of pollutants in gas phase: From morphological design to plasmonic enhancement, Journal of Photochemistry and Photobiology C: Photochemistry Reviews 24, 64, 2015
  • 14. ZHENG C., LI X., ZHAO Q., QU Z., QUAN X., Photo-oxidation of gas-phase cyclohexane species over nanostructured TiO₂ fabricated by different strategies, Separation and Purification Technology 67, 326, 2009
  • 15. JO W.K., KANG H.J., LED Irradiation of a Photocatalyst for Benzene, Toluene, Ethyl benzene, and Xylene Decomposition, Chinese Journal of Catalysis, 33 (9-10), 1672, 2012
  • 16. SONG K., MOHSENI M., TAGHIPOUR F., Application of ultraviolet light-emitting diodes (UV-LEDs) for water disinfection: A review, Water Research 94, 341, 2016
  • 17. TSAI S.-C., FANG H.-C., LAI Y.-L., LU C.-H., LIU C.-P., Efficiency enhancement of green light emitting diodes by improving the uniformity of embedded quantum dots in multiple quantum wells through working pressure control, Journal of Alloys and Compounds, 669, 156, 2016.
  • 18. MIODUSKA J., ZIELINSKA-JUREK A., HUPKA J., JANCZAREK M., The effect of calcination temperature on structure and photocatalytic properties of WO₃/TiO₂ nanocomposites, Journal of Nanomaterials 2016, doi:10.1155/2016/3145912
  • 19. DŁUGOSZ M., WAŚ J., SZCZUBIAŁKA K., NOWAKOWSKA M., TiO₂-coated EP as a floating photocatalyst for water purification, Journal of Materials Chemistry A 2, 6931, 2014
  • 20. KESHMIRI M., TROCZYNSKI T., MOHSENI M., Oxidation of gas phase trichloroethylene and toluene using composite sol-gel TiO₂ photocatalytic coatings, Journal of Hazardous Materials 128, 130, 2006
  • 21. HUANG H., LI W., Destruction of toluene by ozone-enhanced photocatalysis: Performance and mechanism, Applied Catalysis B: Environmental 102, 449, 2011
  • 22. KIM S.H., LEE S.W., LEE G.M., LEE B.-T., YUN S.-T., KIM S.-O., Monitoring of TiO₂ -catalytic UV-LED photo-oxidation of cyanide contained in mine wastewater and leachate, Chemosphere 143, 106, 2016.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

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