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Influence of Metal Oxide Particles on Bandgap of 1D Photocatalysts Based on SrTiO3/PAN Fibers

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dc.contributor.author Sultanov, Fail
dc.contributor.author Daulbayev, Chingis
dc.contributor.author Azat, Seitkhan
dc.contributor.author Kuterbekov, Kairat
dc.contributor.author Bekmyrza, Kenzhebatyr
dc.contributor.author Bakbolat, Baglan
dc.contributor.author Bigaj, Magdalena
dc.contributor.author Mansurov, Zulkhair
dc.date.accessioned 2024-09-16T04:35:21Z
dc.date.available 2024-09-16T04:35:21Z
dc.date.issued 2020
dc.identifier.issn 2079-4991
dc.identifier.other doi:10.3390/nano10091734
dc.identifier.uri http://rep.enu.kz/handle/enu/16381
dc.description.abstract This paper deals with the study of the optical properties of one-dimensional SrTiO3/PAN-based photocatalysts with the addition of metal oxide particles and the determination of their bandgaps. One-dimensional photocatalysts were obtained by the electrospinning method. Particles of metals such as iron, chromium, and copper were used as additives that are capable of improving the fibers’ photocatalytic properties based on SrTiO3/PAN. The optimal ratios of the solutions for the electrospinning of fibers based on SrTiO3/PAN with the addition of metal oxide particles were determined. The transmission and reflection of composite photocatalysts with metal oxide particles were measured in a wide range of spectra, from the ultraviolet region (185 nm) to near-infrared radiation (3600 nm), to determine the values of their bandgaps. Thus, the introduction of metal oxide particles resulted in a decrease in the bandgaps of the obtained composite photocatalysts compared to the initial SrTiO3/PAN (3.57 eV), with the following values: −3.11 eV for SrTiO3/PAN/Fe2O3, −2.84 eV for SrTiO3/PAN/CuO, and −2.89 eV for SrTiO3/PAN/Cr2O3. The obtained composite photocatalysts were tested for the production of hydrogen by the splitting of water–methanol mixtures under UV irradiation, and the following rates of hydrogen evolution were determined: 344.67 µmol h−1 g −1 for SrTiO3/PAN/Fe2O3, 398.93 µmol h−1 g −1 for SrTiO3/PAN/Cr2O3, and 420.82 µmol h−1 g −1 for SrTiO3/PAN/CuO. ru
dc.language.iso en ru
dc.publisher Nanomaterials ru
dc.relation.ispartofseries Volume 10;Issue 9
dc.subject electrospinning ru
dc.subject SrTiO3 ru
dc.subject fibers ru
dc.subject photocatalytic ru
dc.subject water splitting ru
dc.subject bandgap ru
dc.subject hydrogen ru
dc.title Influence of Metal Oxide Particles on Bandgap of 1D Photocatalysts Based on SrTiO3/PAN Fibers ru
dc.type Article ru


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