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The effect of PEDOT morphology on hexavalent chromium reduction over 2D TiO2/PEDOT photocatalyst under UV–vis light
Abstract
The present study represents an approach to apply organic-inorganic hybrid materials for photocatalytic removal of heavy metals from the aqueous environment. The photocatalytic activity of the semiconductor modified with the conjugated polymer may depends on the conjugated polymer type, its amount and morphology. Therefore, in the present study the effect of poly (3, 4-ethylenedioxythiophene) (PEDOT) morphology on adsorption and photoreduction of Cr(VI) to Cr(III) under simulated solar light (UV–vis) and vis light (λ > 400 nm) was investigated. The composite of titanium (IV) oxide and PEDOT of different morphology was obtained using the waterin- oil microemulsion method. The obtained hybrid photocatalysts were characterized by diffuse reflectance spectroscopy (DR/UV–vis), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning and transmission electron microscopy (SEM, TEM), specific surface area (BET) and X-ray photoelectron spectroscopy (XPS) analyzes. PEDOT and its composites with TiO2 nanosheets of anatase were used for the degradation of highly toxic Cr(VI) under the simulated solar light. The 2D TiO2/PEDOT composite with PEDOT microvesicular morphology reveals the highest efficiency of Cr(VI) photoreduction to Cr(III). The synergistic
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Authors (7)
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Katarzyna Siwińska-Ciesielczyk dr hab. inż.
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Konstantin Nikiforow
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Grzegorz Trykowski doktor
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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MATERIALS CHEMISTRY AND PHYSICS
no. 299,
ISSN: 0254-0584 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Sulowska A., Fiszka Borzyszkowska A., Cysewska K., Siwińska-Ciesielczyk K., Nikiforow K., Trykowski G., Zielińska-Jurek A.: The effect of PEDOT morphology on hexavalent chromium reduction over 2D TiO2/PEDOT photocatalyst under UV–vis light// MATERIALS CHEMISTRY AND PHYSICS -Vol. 299, (2023), s.127430-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.matchemphys.2023.127430
- Sources of funding:
- Verified by:
- Gdańsk University of Technology
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