Studies on novel BiyXz-TiO2/SrTiO3 composites: Surface properties and visible light-driven photoactivity - Publikacja - MOST Wiedzy

Wyszukiwarka

Studies on novel BiyXz-TiO2/SrTiO3 composites: Surface properties and visible light-driven photoactivity

Abstrakt

A series of novel BiyXz-TiO2/SrTiO3 composites were prepared by multistep synthesis route. The asprepared photocatalysts were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), diffuse reflectance spectroscopy (DRS), Fourier transform infrared (FT-IR), Raman spectra and BET analysis. The photocatalytic activity test was performed in aqueous solution of phenol under the irradiation of visible light range ( ≥ 420 nm). Obtained results revealed that the BiOI TiO2/SrTiO3 sample exhibit the highest photocatalytic activity under visible irradiation (0.6 mol/dm3/min). Thus, it was demonstrated that modification of the TiO2/SrTiO3 microspheres by flowers-like structure made of bismuth oxyiodide resulted in enhancement of photocatalytic activity under visible light. The role of active species during the decomposition process of organic compound was investigated using different types of active species scavengers as well as electron paramagnetic resonance analysis (EPR). The study showed that in the BiOI TiO2/SrTiO3/Vis system the holes (h+) plays relevant role in phenol decomposition. Furthermore, the stability and recyclable properties of obtained BiOI TiO2/SrTiO3 sample were confirmed during three consecutive processes.

Cytowania

  • 6

    CrossRef

  • 0

    Web of Science

  • 6

    Scopus

Autorzy

Słowa kluczowe

Pełna treść

Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
APPLIED SURFACE SCIENCE nr 435, strony 1174 - 1186,
ISSN: 0169-4332
Język:
angielski
Rok wydania:
2018
Opis bibliograficzny:
Marchelek M., Grabowska E., Klimczuk T., Lisowski W., Giamello E., Zaleska-Medynska A.: Studies on novel BiyXz-TiO2/SrTiO3 composites: Surface properties and visible light-driven photoactivity// APPLIED SURFACE SCIENCE. -Vol. 435, (2018), s.1174-1186
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.apsusc.2017.11.139

wyświetlono 1 razy

Publikacje, które mogą cię zainteresować

Meta Tagi