Abstract
ABSTRACTFor the first time, sodium 30-tungstopentaphosphate, a green and efficient solid acid, was used for the isolation of cellulose from rice husk, resulting in the generation of Preyssler heteropolyacid-cellulose acetate hybrid nanofibers. These modified fibres were characterised by Fourier transform infrared spectroscopy spectrum, scanning electron microscopic images and energy-dispersive spectrometry. It was also showed that Preyssler heteropolyacid was evenly dispersed on or into the nanofibers and the distribution became denser as the concentration of Preyssler HPA increased. The electrospuned nanofibers were employed successfully for the photodegradation of methyl orange, a common azo dye pollutant in the environment.
Highlights
Due to the unique properties of nanofibers, their fabrication has recently gained increased attention
The Preyssler heteropolyacid-cellulose acetate (CA) nanofibers containing different amounts of Preyssler HPA were successfully prepared by electrospinning process
Catalytic activity of the synthesised nano-biocomposite with different Preyssler contents was examined by the photodegradation of methyl orange (MO)
Summary
Due to the unique properties of nanofibers, their fabrication has recently gained increased attention. In continuation of our investigation on the applications of Preyssler acid from different points of view [20 and cited references therein], its key role in catalysis, and with our ongoing interests in the expansion of the applications of Preyssler, and to comply with the green principle of bio-synthesis of nanofibers, we wish to disclose the results for the application of Preyssler acid as an metal oxide cluster in the functionalisation of cellulose via the electrospinning method. In this line we report the preparation of novel Preyssler heteropolyacid-cellulose acetate hybrid nanofibers. The aforementioned modified fibres were prepared by sol-gel combined with electrospinning technique
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