Preparation and photoactivity of nanocrystalline TiO2 powders obtained by thermohydrolysis of TiOSO4

Marianna Bellardita, Agatino Di Paola, Leonardo Palmisano, Samiolo, Amadelli, Di Paola, Palmisano

Risultato della ricerca: Articlepeer review

10 Citazioni (Scopus)

Abstract

Nanocrystalline TiO2 photocatalysts were synthesizedin mild conditions by thermohydrolysis of TiOSO4in water at 100 C and post-calcination treatment at varioustemperatures. The TiO2 powders were characterized byX-ray diffraction, X-ray photoelectron spectroscopy, specificsurface area determinations, scanning electronmicroscopy and electron paramagnetic resonance measurements.The photoactivity of the samples was testedemploying the photodegradation of 4-nitrophenol inliquid–solid regimen and the photooxidation of gaseous2-propanol. The best results were obtained with the powdercalcined at 600 C for 10 h. Surprisingly, the not calcinedsample was the most active for the abatement of NOx underirradiation.
Lingua originaleEnglish
pagine (da-a)844-852
Numero di pagine9
RivistaCatalysis Letters
Volume143
Stato di pubblicazionePublished - 2013

All Science Journal Classification (ASJC) codes

  • Catalysis
  • ???subjectarea.asjc.1600.1600???

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