Properties and arsenic removal evaluation of polyvinyl alcohol nanofibers with embedded strontium hexaferrite nanoparticles

This work deals with the study of physical properties exhibited the polyvinyl alcohol (PVA) fabricated as a nanofiber composite with embedded strontium hexaferrite nanoparticles (SrM-NPs). The nanofibers obtained from electrospinning have 165 nm average diameter, and the nanoparticles obtained from...

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Bibliographic Details
Published in:Materials chemistry and physics 2019-08, Vol.234, p.151-157
Main Authors: Murillo-Ortíz, R., Mirabal-García, M., Cruz-Rivera, J.J., Valdez-Pérez, D., Martínez, J.R., Pérez-Moreno, F., Lobo-Guerrero, A.
Format: Article
Language:English
Subjects:
Arsenic
Arsenic removal
Electric fields
Electrospinning
Magnetic polymers
Magnetic properties
Nanofibers
Nanoparticles
Pechini method
Physical properties
Polyvinyl alcohol
Sol-gel processes
Strontium
Strontium hexaferrite nanoparticles
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Summary:This work deals with the study of physical properties exhibited the polyvinyl alcohol (PVA) fabricated as a nanofiber composite with embedded strontium hexaferrite nanoparticles (SrM-NPs). The nanofibers obtained from electrospinning have 165 nm average diameter, and the nanoparticles obtained from the sol-gel Pechini method have 78 nm diameter. A low-frequency sonication treatment performed to these nanoparticles allowed to deagglomerate and to reduce their size up to obtain 3.4 nm average diameter. Also, the magnetic nanoparticles exhibit an arrangement along the PVA nanofiber because of the nanoparticles interact with the electric field generated during the electrospinning. This arrangement improves the magnetic properties of the composite in comparison with the bulk nanoparticles. Also, the interaction of strontium hexaferrite nanoparticles with the PVA matrix induces changes on its physical properties, as well as on the ability of nanofibers to uptake arsenic from water. [Display omitted] •Arsenic removal using PVA nanofiber magneto-composite.•Effect of strontium hexaferrite nanoparticles on the PVA nanofiber properties.•Improvement of arsenic removal efficiency by effect of hexaferrite nanoparticles.•Thermoprotective effect of the hexaferrite nanoparticles on the PVA matrix.
ISSN:0254-0584
1879-3312
DOI:10.1016/j.matchemphys.2019.05.043