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Chemical Vapor Deposition of Photocatalyst Nanoparticles on PVDF Membranes for Advanced Oxidation Processes

The chemical binding of photocatalytic materials, such as TiO(2) and ZnO nanoparticles, onto porous polymer membranes requires a series of chemical reactions and long purification processes, which often result in small amounts of trapped nanoparticles with reduced photocatalytic activity. In this wo...

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Detalles Bibliográficos
Autores principales: De Filpo, Giovanni, Pantuso, Elvira, Armentano, Katia, Formoso, Patrizia, Di Profio, Gianluca, Poerio, Teresa, Fontananova, Enrica, Meringolo, Carmen, Mashin, Alexander I., Nicoletta, Fiore P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6161011/
https://www.ncbi.nlm.nih.gov/pubmed/29933602
http://dx.doi.org/10.3390/membranes8030035
Descripción
Sumario:The chemical binding of photocatalytic materials, such as TiO(2) and ZnO nanoparticles, onto porous polymer membranes requires a series of chemical reactions and long purification processes, which often result in small amounts of trapped nanoparticles with reduced photocatalytic activity. In this work, a chemical vapor deposition technique was investigated in order to allow the nucleation and growth of ZnO and TiO(2) nanoparticles onto polyvinylidene difluoride (PVDF) porous membranes for application in advanced oxidation processes. The thickness of obtained surface coatings by sputtered nanoparticles was found to depend on process conditions. The photocatalytic efficiency of sputtered membranes was tested against both a model drug and a model organic pollutant in a small continuous flow reactor.