Photocatalytic degradation and antibacterial investigation of nano synthesized Ag₃VO₄particles @PAN nanofibers

Abstract

Well-dispersed Ag 3 VO 4 nanoparticles @polyacrylonitrile (PAN) nanofibers were synthesized by an easily controlled, template-free method as a photo-catalyst for the degradation of methylene blue. Their structural, optical, and photocatalytic properties have been studied by X-ray diffraction, transmission electron microscopy, field-emission scanning electron microscopy equipped with rapid energy dispersive analysis of X-ray, photoluminescence, and ultraviolet-visible spectroscopy. The characterization procedures revealed that the obtained material is PAN nanofibers decorated by Ag 3 VO 4 nanoparticles. Photocatalytic degradation of methylene blue investigated in an aqueous solution under irradiation showed 99% degradation of the dye within 75 min. Finally, the antibacterial performance of Ag 3 VO 4 nanoparticles @PAN composite nanofibers was experimentally verified by the destruction of Escherichia coli. These results suggest that the developed inexpensive and functional nanomaterials can serve as a non-precious catalyst for environmental applications.

Synthesis of Electrospun PAN/TiO2/Ag Nanofibers Membrane As Potential Air Filtration Media with Photocatalytic Activity

“…The improvement in photocatalytic activity is also supported by various studies that demonstrate TiO 2 /Ag to have good photocatalytic activity under visible light. 7 , 23 , 33 , 38 − 40 …”

Development of a Novel Mixed Titanium, Silver Oxide Polyacrylonitrile Nanofiber as a Superior Adsorbent and its Application for MB Removal in Wastewater Treatment

“…It is reported that Ag 3 VO 4 nanoparticles could bind to the deoxyribonucleic acid (DNA) of the microorganisms, and then disturb their metabolism processes, especially cell division, which ultimately results in cell damage or death. 27 Moreover, Ag 3 VO 4 could generate electron-pair holes and react with O 2 or OH -to make active oxygen species formation, which interact with cell membranes, DNA, and cellular proteins, giving rise to cell death. 53 …”

“…26 It is reported that mixed metal oxides containing two or more metals were effective catalysts and catalytic supports for a wide variety of organic reactions. 27,28 Taking advantage of the high specific surface area of nanostructures, TiO 2 and other metal oxides have been utilized to enhance dye degradation adsorption purpose. 29,30 For example, Zhou et al 31 successfully prepared a nanoTiO 2 /chitosan/poly(N-isopropylacrylamide) (nano-TiO 2 / CS/PNIPAAm) composite hydrogel.…”

Surfactant/organic solvent free single-step engineering of hybrid graphene-Pt/TiO2 nanostructure: Efficient photocatalytic system for the treatment of wastewater coming from textile industries

“…While photocatalytic activity investigation of synthesized hybrid graphene-Pt/TiO 2 nanostructure was evaluated under natural environment on sunny day at average ambient temperature and mean daily global solar radiation, of about 22–25 °C and 374.9 mWh/cm 2 , respectively in January between 12:00 p.m. to 02:00 p.m. by degradation of methylene blue (MB) dye solution. The procedure used for photocatalytic investigation of synthesized hybrid graphene-Pt/TiO 2 nanostructure in this study has followed according to our previous studies 4 – 6 .…”

“…Therefore, the removal or degradation of heterocyclic organics pollutants has gradually become hot topics for textile industrialists. Among numerous degradation techniques suitable for dye removal, the heterogeneous photocatalytic process is an efficient and economic technique, which can be successfully used to degrade the organic pollutants and transform them into benign substances 5 , 6 .…”