Ag/ZnO/PMMA Nanocomposites for Efficient Water Reuse.

Autor: Di Mauro A; CNR-IMM, Via S. Sofia 64, 95123 Catania, Italy., Farrugia C; Department of Metallurgy & Materials Engineering, Faculty of Engineering, University of Malta, Msida MSD 2080, Malta., Abela S; Department of Metallurgy & Materials Engineering, Faculty of Engineering, University of Malta, Msida MSD 2080, Malta., Refalo P; Department of Industrial & Manufacturing Engineering, Faculty of Engineering, University of Malta, Msida MSD 2080, Malta., Grech M; Department of Metallurgy & Materials Engineering, Faculty of Engineering, University of Malta, Msida MSD 2080, Malta., Falqui L; Plastica Alfa SpA, C. da Santa Maria Poggiarelli, Zona Industriale, 95041 Caltagirone (CT), Italy., Nicotra G; CNR-IMM, Z.I. VIII Strada 5, 95121 Catania, Italy., Sfuncia G; CNR-IMM, Z.I. VIII Strada 5, 95121 Catania, Italy., Mio A; CNR-IMM, Z.I. VIII Strada 5, 95121 Catania, Italy., Buccheri MA; Department of Biological, Geological and Environmental Science, University of Catania, Via Androne 81, 95124 Catania, Italy., Rappazzo G; Department of Biological, Geological and Environmental Science, University of Catania, Via Androne 81, 95124 Catania, Italy., Brundo MV; Department of Biological, Geological and Environmental Science, University of Catania, Via Androne 81, 95124 Catania, Italy., Scalisi EM; Department of Biological, Geological and Environmental Science, University of Catania, Via Androne 81, 95124 Catania, Italy., Pecoraro R; Department of Biological, Geological and Environmental Science, University of Catania, Via Androne 81, 95124 Catania, Italy., Iaria C; Department of Chemical, Biological, Pharmacological and Environmental Science, University of Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy., Privitera V; CNR-IMM, Via S. Sofia 64, 95123 Catania, Italy., Impellizzeri G; CNR-IMM, Via S. Sofia 64, 95123 Catania, Italy.
Jazyk: angličtina
Zdroj: ACS applied bio materials [ACS Appl Bio Mater] 2020 Jul 20; Vol. 3 (7), pp. 4417-4426. Date of Electronic Publication: 2020 Jul 07.
DOI: 10.1021/acsabm.0c00409
Abstrakt: This work attempts to produce photocatalytic surfaces for large-scale applications by depositing nanostructured coatings on polymeric substrates. ZnO/poly(methyl methacrylate) (PMMA) composites were prepared by low-temperature atomic layer deposition (ALD) of ZnO on PMMA substrates. In addition, to increase the photocatalytic and antibacterial activities of ZnO films, Ag nanoparticles were added on ZnO surfaces using plasma-enhanced ALD. The morphology, crystallinity, and chemical composition of the specimens were meticulously examined by scanning and transmission electron microscopies, energy-dispersive X-ray spectroscopy, and X-ray diffraction analyses. The noteworthy photocatalytic activity of the nanocomposites was proved by the degradation of the following organic pollutants in aqueous solution: methylene blue, paracetamol, and sodium lauryl sulfate. The antibacterial properties of the samples were tested using Escherichia coli as a model organism. Moreover, the possible toxic effects of the specimens were checked by biological tests. The present results unambiguously indicate the Ag/ZnO/PMMA nanocomposite as a powerful tool for an advanced wastewater treatment technology.
Databáze: MEDLINE