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  • 1
    facet.materialart.
    Unknown
    Wiley-Blackwell
    Publication Date: 2018-02-22
    Description: An approach for underground, deep, and turbid water remediation is presented based on optical fibers with a photocatalytic coating. Thus, photocatalytic TiO 2 P25 nanoparticles immobilized in a poly(vinylidene difluoride) (PVDF) matrix are coated on polymeric optical fibers (POFs) and the photocatalytic performance of the system is assessed under artificial sunlight. To the best of our knowledge, poly(methyl methacrylate)-POF coated with TiO 2 /PVDF and the reusability of any type of POF for photocatalytic applications are not previously reported. The photocatalytic efficiency of the hybrid material in the degradation of ciprofloxacin (CIP) and its reusability are evaluated here. It is shown that 50 w/w% of TiO 2 P25 achieves a degradation of 95% after 72 h under artificial sunlight and a reusability of three times leads to a loss of activity inferior to 11%. The efficient removal of ciprofloxacin and the stability of the POF coated with TiO 2 P25 successfully demonstrate its suitability in the degradation of pollutants with potential application in regions with low light illumination, as in underground and deep water. For the first time, the immobilization of photocatalytic titanium dioxide (TiO 2 ) nanoparticles in a polymer (PVDF) onto the surface of polymeric optical fibers is shown. This material combines the practicability of the optical fibers to transport radiation, the chemical resilience of the PVDF coating, and the catalytic properties of TiO 2 nanoparticles into a single reusable material.
    Electronic ISSN: 2056-6646
    Topics: General, Interdisciplinary , Energy, Environment Protection, Nuclear Power Engineering
    Published by Wiley-Blackwell
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  • 2
    facet.materialart.
    Unknown
    Wiley-Blackwell
    Publication Date: 2018-03-09
    Description: In article number 1700124 , Pedro M. Martins, Senentxu Lanceros-Méndez, and co-workers show for the first time the immobilization of photocatalytic titanium dioxide (TiO 2 ) nanoparticles in a polymer (PVDF) onto the surface of polymeric optical fibers, which can be applied in environmental decontamination. The optical fibers not only act as a material of light transportation but also an immobilization matrix for the PVDF/TiO 2 composite, thus radiation and the photocatalytic effect are provided by the same material. The immobilization of TiO 2 in the polymer improves the stability of the coating and consequently its reusability, which is important for practical applications. As light is transmitted through the fibers until the end tip, remote environments deployed of light access, as it is the case of soil and deep water, can be reached and decontaminated. This work combines the practicability of the optical fibers to transport radiation, the chemical resilience of the PVDF coating, and the catalytic properties of TiO 2 into a single material.
    Electronic ISSN: 2056-6646
    Topics: General, Interdisciplinary , Energy, Environment Protection, Nuclear Power Engineering
    Published by Wiley-Blackwell
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
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