Open AccessElectrospinning Synthesis and Photocatalytic Activity of Mesoporous TiO2Nanofibers
Author(s) -
Jing Li,
Hui Qiao,
Yuanzhi Du,
Chen Chen,
Xiaolin Li,
Jing Cui,
D. N. T. Kumar,
Qufu Wei
Publication year - 2012
Publication title -
the scientific world journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.453
H-Index - 93
eISSN - 2356-6140
pISSN - 1537-744X
DOI - 10.1100/2012/154939
Subject(s) - photocatalysis , nanofiber , materials science , calcination , electrospinning , rhodamine b , anatase , chemical engineering , scanning electron microscope , titanium dioxide , mesoporous material , transmission electron microscopy , nanotechnology , composite material , catalysis , chemistry , organic chemistry , polymer , engineering
Titanium dioxide (TiO 2 ) 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 TiO 2 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 TiO 2 nanofibers, but no obvious effect was noticed on the crystal structure of TiO 2 nanofibers. The photocatalytic properties of TiO 2 nanofibers were evaluated by photocatalytic degradation of rhodamine B (RhB) in water under visible light irradiation. It was observed that TiO 2 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 TiO 2 nanofibers with high-photocatalytic activity.
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