Abstract: Polymeric floating photocatalysts based on polyethylene (PE)/TiO2 compositions were synthesized by in situ ethylene polymerization in the presence of a titanium–magnesium catalyst synthesized by the sequential deposition of a magnesium–aluminum complex and TiCl4 on commercial TiO2 P25. The optical band gap of the synthesized PE/TiO2 composites was shown to be 3.1–3.3 eV, which allowed for their use as photocatalysts for the utilization of solar light. The photocatalytic activity of the PE/TiO2 composites was studied for the degradation of methyl orange (MO) under irradiation with UV light (λmax = 384 nm). The composites containing 20–50 wt.% of PE were found to have an optimum combination between floatability and photocatalytic activity. The maximum photodegradation rate was observed at an MO concentration below 5 ppm. The polymeric PE/TiO2 floating photocatalysts could be used repeatedly, but the long-term exposure of the composites to UV radiation was accompanied by oxidation of the polymer.

Cite: Panchenko V.N. , Matsko M.A. , Selishchev D.S. , Kozlov D.V.
Polymeric Floating Photocatalysts Based on PE/TiO2 Composites for the Removal of Organic Pollutants in Water
Journal of Composites Science. 2023. V.7. N8. 318 :1-14. DOI: 10.3390/jcs7080318 WOS Scopus РИНЦ ANCAN OpenAlex

Dates:

Submitted:	Jun 7, 2023
Accepted:	Jul 25, 2023
Published print:	Aug 2, 2023
Published online:	Aug 2, 2023

Identifiers:

Web of science:	WOS:001055618200001
Scopus:	2-s2.0-85168892853
Elibrary:	55989907
Chemical Abstracts:	2023:1823248
Chemical Abstracts (print):	184:349047
OpenAlex:	W4385481477

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