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Conducting Polymer Polypyrrole and Titanium Dioxide Nanocomposites for Photocatalysis of RR45 Dye under Visible Light (CROSBI ID 253409)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Kratofil Krehula, Ljerka ; Stjepanović, Jasmina ; Perlog, Martina ; Krehula, Stjepko ; Gilja, Vanja ; Hrnjak-Murgić, Zlata ; Travas-Sejdic, Jadranka Conducting Polymer Polypyrrole and Titanium Dioxide Nanocomposites for Photocatalysis of RR45 Dye under Visible Light // Polymer bulletin, 76 (2019), 4; 1697-1715. doi: 10.1007/s00289-018-2463-2

Podaci o odgovornosti

Kratofil Krehula, Ljerka ; Stjepanović, Jasmina ; Perlog, Martina ; Krehula, Stjepko ; Gilja, Vanja ; Hrnjak-Murgić, Zlata ; Travas-Sejdic, Jadranka

engleski

Conducting Polymer Polypyrrole and Titanium Dioxide Nanocomposites for Photocatalysis of RR45 Dye under Visible Light

The interest is given on the preparation of nanocomposites of titanium dioxide (TiO2) with conducting polymer polypyrrole (PPy) because the resulting composites possess enhanced photocatalytic activity under visible light in comparison to pure TiO2 photocatalyst. In such composite there is a synergistic activity of the components. It is very important to optimize the synthesis conditions in order to obtain PPy/TiO2 composites with the optimal thickness of conductive polymer layer on TiO2 and minimal possible aggregation of particles. PPy/TiO2 composites were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), UV-Vis spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The photocatalytic efficiency of the samples was determined by following the decomposition of Reactive Red 45 (RR 45) dye under UV and visible light, which was monitored by UV-Vis spectroscopy (as a change in absorbance of wavelength at 542 nm). The results show enhanced photocatalytic efficiency of the samples under visible light.

polypyrrole ; titanium dioxide ; nanocomposite ; photocatalysis ; visible light

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Podaci o izdanju

76 (4)

2019.

1697-1715

objavljeno

0170-0839

1436-2449

10.1007/s00289-018-2463-2

Povezanost rada

Kemija, Kemijsko inženjerstvo, Interdisciplinarne tehničke znanosti

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