Naslov
Synthesis, Characterization and Photocatalytic Activity of Polypyrrole/TiO2 And Polypyrrole/ZnO Composites

Autori
Kratofil Krehula, Ljerka ; Krehula, Stjepko ; Gilja, Vanja ; Husak, Andrea ; Perlog, Martina ; Stjepanović, Jasmina ; Šuka, Sniježana ; Hrnjak- Murgić, Zlata

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
80th Prague Meeting on Macromolecules - Self- Assembly in the World of Polymers / Daniela Illnerova, Marie Rodova, Dana Horka - Prag : Institute of Macromolecular Chemistry of the Academy of Sciences of the Czech Republic, 2016, 143-143

ISBN
978-80-85009-85-9

Skup
80th Prague Meeting on Macromolecules

Mjesto i datum
Prag, Češka Republika, 10.07.2016. - 14.07.2016

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
composite ; photocatalysis ; polypyrrole ; titanium dioxide ; zinc oxide

Sažetak
Titanium dioxide (TiO2) and zinc oxide (ZnO) can be used as photocatalysts for water purification. However, one particular interest is given on the integration of inorganic TiO2 and ZnO nanoparticles with conducting polymers1, 2 because the resulting nanocomposites may possess unique properties and enhanced photocatalytic activity in comparison to pure TiO2 and ZnO, using UV and also visible light. It is needed to explore the appropriate structure of polypyrrole that can induce activation of TiO2 and ZnO photocatalyst since the synthesis of organic/inorganic hybrid materials can result in a synergistic and complementary feature, increasing TiO2 and ZnO photocatalytic efficiency. In this paper several different composites of polypyrrole/titanium dioxide and polypyrrole/zinc oxide (PPy/TiO2 and PPy/ZnO composites) were studied. Composite samples were characterized by X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), UV-Vis spectroscopy and scanning electron microscopy (SEM). The photocatalytic efficiency of prepared composite 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 characteristic wavelength at 542 nm). The obtained results showed good photocatalytic efficiency of nanocomposite samples under UV light. Some of the samples also showed excellent photocatalytic effect under visible light.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Kemijsko inženjerstvo

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