Abstract
Titanium dioxide (TiO2) nanofibers in the anatase structure were successfully prepared via electrospinning technique followed by calcination process. The morphologies, crystal structure, surface area, and the photocatalytic activity of resulting TiO2 nanofibers were characterized by field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), nitrogen sorption, and UV-vis spectroscopy. The results revealed that calcination temperature had greatly influenced the morphologies of TiO2 nanofibers, but no obvious effect was noticed on the crystal structure of TiO2 nanofibers. The photocatalytic properties of TiO2 nanofibers were evaluated by photocatalytic degradation of rhodamine B (RhB) in water under visible light irradiation. It was observed that TiO2 nanofibers obtained by calcination at 500°C for 3 hours exhibited the most excellent photocatalytic activity. We present a novel and simple method to fabricate TiO2 nanofibers with high-photocatalytic activity.
Highlights
In recent years, titanium dioxide (TiO2) has attracted much attention, which is because of its wide range of potential applications in environmental remediation, electronics, sensor technology, solar cell, and other related fields [1,2,3,4,5,6]
The photocatalytic properties of TiO2 nanofibers prepared by our method were evaluated by photocatalytic degradation of rhodamine B (RhB) in aqueous solution under visible light irradiation, the photocatalytic activity of TiO2 nanofibers calcined at 500◦C had the best photocatalytic activity and obtained 99% degradation rate under visible light irradiation for 2.5 h
TiO2 nanofibers obtained at 500◦C would have greater specific surface area, as discussed in nitrogen sorption section, which would enhance the adsorption of dyes around/on the surface of TiO2 nanoparticles, that means more photogenerated electrons would be created, resulting in high photodegradation rate
Summary
Titanium dioxide (TiO2) has attracted much attention, which is because of its wide range of potential applications in environmental remediation, electronics, sensor technology, solar cell, and other related fields [1,2,3,4,5,6] Among those applications, TiO2 has the most successful application in photocatalyst field due to its excellent photoactivity, high stability, and low cost. The Scientific World Journal excellent anchorage sites for filopodia extensions, when compared to polished Ti-control surface [17] By all these above-mentioned techniques and methods, TiO2 with good photocatalytic activity could be prepared. The photocatalytic properties of TiO2 nanofibers prepared by our method were evaluated by photocatalytic degradation of rhodamine B (RhB) in aqueous solution under visible light irradiation, the photocatalytic activity of TiO2 nanofibers calcined at 500◦C had the best photocatalytic activity and obtained 99% degradation rate under visible light irradiation for 2.5 h
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
