Original Article:
Allura Red dye sorption onto electrospun zirconia nanofibers
Ana KarenÁvila-Martínez, et al.
Environmental Technology & Innovation, 2020, 18, 100760.
10.1016/j.eti.2020.100760
Zirconia (ZrO2) or zirconium oxide is a thermally stable ceramic with a high melting point, high ionic conductivity and inertness to chemical attack. Furthermore, ceramic fibers exhibit unique properties such as high surface area, high surface-to-mass ratio, high permeability, and low weight. Therefore, zirconia fibers are a good choice for the removal of organic pollutants such as azo dyes from aqueous media.
This paper reports a method for preparing zirconia fibers from zirconium butoxide and polyvinylpyrrolidone precursors, using sol-gel and electrospinning techniques. The nascent fibers obtained from the precursor solution were continuous, with an average diameter of 300 ± 95 nm observed in samples obtained using a high precursor molar ratio (Zirconium butoxide: 0.1 M). Characterization by FTIR, Raman spectroscopy and XRD confirmed the presence of monoclinic, cubic and tetragonal phases of zirconia in the obtained fibers. The monoclinic phase of zirconia was the most abundant in the samples at all temperatures used. The adsorption behavior of the zirconia fibers was subsequently evaluated. The maximum adsorption capacity of allura red dye on zirconia fibers is 0.895 mg/g.
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Chemicals Related in the Paper:
| Catalog Number | Product Name | Structure | CAS Number | Price |
|---|---|---|---|---|
| ACM1071767 | Zirconium(IV) Butoxide (ca. 80% in 1-Butanol) |  |
1071-76-7 | Price |
