Abstract
Titanium dioxide (TiO2) has high photocatalytic activity and it is extensively applied in solar cell technology and environmental science. Electrospinning is acknowledged as the most versatile technique to fabricate nanofibers such as metal oxide nanofibers. Titanium dioxide nanofibers are generally prepared by electrospinning organic solutions containing alkoxide precursors and a carrier polymer with high voltage supply. The paper discusses on electrospun TiO2 nanofibers including the spin dopes preparation history, influencing factors on fiber morphology and fiber characterizations. In particular, the parameters such as spin dopes viscosity, supplied voltage, feeding rate and effect of temperature that affect the morphology of the nanofibers are emphasized. Based on several studies, smaller diameter of TiO2 nanofibers can be produced with lower viscosity solution, higher voltage and lower feeding rate. The heat treatment of 500 °C reduced the fiber size and produces crystallized anatase TiO2 nanofibers.
Highlights
MATEC Web of Conferences extremely long growing time and does not produce uniform fibers [13]
In a typical electrospinning system, there are three basic components to be used: a high voltage supply, a needle of small diameter with syringe that is connected to a syringe pump and a grounded metal collector [17]
The titanium dioxide-based spin dopes can be prepared from organic solutions containing alkoxide precursors and a carrier polymer [19]
Summary
MATEC Web of Conferences extremely long growing time and does not produce uniform fibers [13]. Electrospinning has engrossed the attention of the researchers. Electrospinning appears as a novel, versatile, simple, cost effective and straightforward technique to produce fibers with diameters down to tens of nanometers, from various materials such as polymers, metal oxides and composites [11, 14, 16]. In a typical electrospinning system, there are three basic components to be used: a high voltage supply, a needle of small diameter with syringe that is connected to a syringe pump and a grounded metal collector [17]. The schematic diagram for a typical electrospinning set up can be referred to [18]
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