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Molecules 2019, 24(5), 874; https://doi.org/10.3390/molecules24050874

Novel Photocatalytic Nanocomposite Made of Polymeric Carbon Nitride and Metal Oxide Nanoparticles

1
Institute of High Pressure Physics, Polish Academy of Sciences, Sokolowska 29/37, 01-142 Warsaw, Poland
2
Military University of Technology, Institute of Optoelectronics, Urbanowicza 2, 00-908 Warsaw, Poland
3
West Pomeranian University of Technology Szczecin, Pułaskiego 10, 70-322 Szczecin, Poland
*
Author to whom correspondence should be addressed.
Academic Editor: Dimitrios Bikiaris
Received: 25 January 2019 / Revised: 25 February 2019 / Accepted: 26 February 2019 / Published: 1 March 2019
(This article belongs to the Special Issue Polymer Composites and Nanocomposites with Enhanched Properties)
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Abstract

Semiconducting polymers are promising materials for photocatalysis, batteries, fuel applications, etc. One of the most useful photocatalysts is polymeric carbon nitride (PCN), which is usually produced during melamine condensation. In this work, a novel method of obtaining a PCN nanocomposite, in which PCN forms an amorphous layer coating on oxide nanoparticles, is presented. Microwave hydrothermal synthesis (MHS) was used to synthesize a homogeneous mixture of nanoparticles consisting of 80 wt.% AlOOH and 20 wt.% of ZrO2. The nanopowders were mechanically milled with melamine, and the mixture was annealed in the temperature range of 400–600 °C with rapid heating and cooling. The above procedure lowers PCN formation to 400 °C. The following nanocomposite properties were investigated: band gap, specific surface area, particle size, morphology, phase composition, chemical composition, and photocatalytic activity. The specific surface of the PCN nanocomposite was as high as 70 m2/g, and the optical band gap was 3 eV. High photocatalytic activity in phenol degradation was observed. The proposed simple method, as well as the low-cost preparation procedure, permits the exploitation of PCN as a polymer semiconductor photocatalytic material. View Full-Text
Keywords: microwave hydrothermal synthesis; AlOOH-ZrO2; nanocomposites; polymeric carbon nitride (PCN); band gap; photocatalysis; γ-Al2O3-ZrO2 nanopowders microwave hydrothermal synthesis; AlOOH-ZrO2; nanocomposites; polymeric carbon nitride (PCN); band gap; photocatalysis; γ-Al2O3-ZrO2 nanopowders
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Koltsov, I.; Wojnarowicz, J.; Nyga, P.; Smalc-Koziorowska, J.; Stelmakh, S.; Babyszko, A.; Morawski, A.W.; Lojkowski, W. Novel Photocatalytic Nanocomposite Made of Polymeric Carbon Nitride and Metal Oxide Nanoparticles. Molecules 2019, 24, 874.

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