A PEDOT-Pt-TiO<sub>2</sub> hybrid material synthesized by the casting method for photocatalytic hydrogen generation - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Advances in Natural Sciences : Nanoscience and Nanotechnology Année : 2023

A PEDOT-Pt-TiO2 hybrid material synthesized by the casting method for photocatalytic hydrogen generation

Résumé

Abstract This study describes the synthesis and characterisation of a hybrid material consisting of titanium dioxide nanotube arrays (TiO2 NTs) modified by platinum nanoparticles (Pt-TiO2 NTs) via radiolysis and a conductive poly(3,4-ethylenedioxythiophene) (PEDOT) layer, for the first time. The NTs were fabricated by a two-step anodic oxidation process and exhibited different morphologies using electrolyte solutions with different water contents (2–10 vol%). The polymer layer of poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) was coated on the Pt-TiO2 scaffold using the casting method. The PEDOT:PSS-PT-TiO2 NTs exhibited stability in the photocatalytic process after additional calcination which was carried out to remove the PSS part; the nanotubes with lengths of ∼3 μm exhibited the highest photocatalytic activity (∼4.5 × 10−3 μmol cm−2 of H2). Additionally, the samples obtained from electrolyte solutions containing 5 and 10 vol% water exhibited nanostructures with the highest catalytic activity.
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Dates et versions

hal-04347866 , version 1 (15-12-2023)

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Marek Kobylański, Agnieszka Tercjak, Hynd Remita, Xiaojiao Yuan, Onur Cavdar, et al.. A PEDOT-Pt-TiO2 hybrid material synthesized by the casting method for photocatalytic hydrogen generation. Advances in Natural Sciences : Nanoscience and Nanotechnology, 2023, 14 (4), pp.045017. ⟨10.1088/2043-6262/ad095c⟩. ⟨hal-04347866⟩
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