Preparation of PVA nanofibers containing tungsten oxide nanoparticle by electrospinning and consideration of their structural properties and photocatalytic activity
| Autor: | O. Rezaee, Hossein Mahmoudi Chenari, H. Ziyadi, Farhad E. Ghodsi |
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| Rok vydání: | 2017 |
| Předmět: |
Aqueous solution
Materials science Scanning electron microscope Mechanical Engineering Metals and Alloys chemistry.chemical_element Nanoparticle 02 engineering and technology Tungsten 010402 general chemistry 021001 nanoscience & nanotechnology Microstructure 01 natural sciences Electrospinning 0104 chemical sciences Chemical engineering chemistry Mechanics of Materials Nanofiber Materials Chemistry Photocatalysis Composite material 0210 nano-technology |
| Zdroj: | Journal of Alloys and Compounds. 690:864-872 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2016.08.212 |
| Popis: | The electrospinning technique was used successfully to fabricate poly (vinylalcohol) (PVA) nanofibers containing tungsten oxide nanoparticles (NPs). The tungsten oxide NPs/PVA composite nanofibers were characterized by X-ray diffraction (XRD) measurement, scanning electron microscopy (SEM), Fourier-transform-infrared spectroscopy (FT-IR) and Atomic force microscopy (AFM). The microstructure parameters of as–spun tungsten oxide NPs/PVA nanofibers were also presented by the Williamson-Hall method and Variance analysis. The average diameters of the electrospun PVA fibers with 10 wt% and 15 wt% tungsten oxide obtained from the SEM analysis were about 125 ± 15 and 165 ± 30 nm, respectively. The photocatalytic activities of the electrospun nanofibers were examined by photocatalytic discoloration rate of methylene blue in the presence of H 2 O 2 and aqueous solution PH under ultraviolet (UV) light irradiation. It was observed that tungsten oxide NPs/PVA nanofibers exhibited excellent photocatalytic activity in decolourization of aqueous solution of methylen blue in presence of 0.1 M H 2 O 2 . Decolourization rate about 10.5 × 10 −3 min −1 , was obtained for the PVA nanofibers containing 15 wt% tungsten nanoparticles with H 2 O 2 compared with the samples without catalyst. |
| Databáze: | OpenAIRE |
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