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Open AccessArticle

Enhanced Performance of Electrospun Nanofibrous TiO2/g-C3N4 Photocatalyst in Photocatalytic Degradation of Methylene Blue

Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece
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Catalysts 2019, 9(11), 880; https://doi.org/10.3390/catal9110880
Received: 8 October 2019 / Accepted: 21 October 2019 / Published: 24 October 2019
TiO2/g-C3N4 (GNT) fibers with 1%, 2.5% and 5% (wt%) ratios have been synthesized via one-step electrospinning using polyvinylpyrrolidone (PVP) polymer. Results showed mesoporous fibrous catalysts consisted of anatase (80.0–85.1%) and rutile phase (14.9–20.0%), with diameter between 200–300 nm and band gap lower than 3.0 eV confirming the absorption shift to visible-light region. The formation of OH radicals and methylene blue dye degradation increases as the g-C3N4 doping percent also increases, following the trend ΤiO2 < GNT1% ≈ GNT2.5% < GNT5%. A z-scheme mechanism is attributed to the photocatalytic performance confirming the potential for green chemistry and environmental technology applications. View Full-Text
Keywords: electrospinning; TiO2/g-C3N4 fibers; heterojunction; photocatalytic activity; z-scheme electrospinning; TiO2/g-C3N4 fibers; heterojunction; photocatalytic activity; z-scheme
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Bairamis, F.; Konstantinou, I.; Petrakis, D.; Vaimakis, T. Enhanced Performance of Electrospun Nanofibrous TiO2/g-C3N4 Photocatalyst in Photocatalytic Degradation of Methylene Blue. Catalysts 2019, 9, 880.

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