Preparation and characterization of TiO₂ nanofibers via using polylactic acid as template

Abstract

A simple procedure is reported for the fabrication of TiO 2 nanofibers via electrospinning technique using polylactic acid (PLA), tetrabutyl titanate, and hexafluoroisopropanol as a spinning solution. TiO 2 nanofibers (600-700 nm in diameter), with bundled nanofibrils align in the fiber direction, are obtained from the calcination of the as-spun TiO 2 /PLA composite nanofibers at 550 C. The structure and physicochemical property of generated nanofibers are elucidated by Fourier transform-Infrared radiation spectrometer, X-ray diffraction, scanning electron microscope, and Thermogravimetric-differential thermal analysis, respectively. The photocatalytical activity of the TiO 2 nanofibers is testified by quantifying the degradation of methylene orange. The result indicates that the TiO 2 nanofibers with pure anatase phase, which are prepared at 550 C, shows an excellent photocatalytic activity.

Preparation and Characterization of Polymer Composite Materials Based on PLA/TiO2 for Antibacterial Packaging

“…After that, a significant mass loss between 280–390 °C is observed, which corresponds to the decomposition of the PLA. Finally, from 390 °C to 500 °C thermal analysis curves slow down to complete the decomposition of the PLA matrix [33] until a constant mass is reached. The constant mass remaining at the end of each TGA experiment (see Figure 3 for PLA/TiO 2 -100 and Figure S2 for PLA/TiO 2 -21) corresponds to the inorganic material, i.e.…”

Photocatalytic Degradation of Ampicillin Using PLA/TiO2 Hybrid Nanofibers Coated on Different Types of Fiberglass

“…[16]. Also, electrospinning has been successfully used for synthesis of TiO 2 nanofibers by using solutions that contained poly (vinyl pyrrolidone) (PVP) and Ti(IV)-isopropoxide [17,18], polyvinyl acetate (PVAc) and titanium tetraisopropoxide [19], polylactic acid (PLA), tetrabutyl titanate, and hexafluoroisopropanol [20]. The latter, PLA/TiO 2 (anatase) nanofibers, have also been tested for photocatalytic degradation of methyl orange with excellent results.…”

Electrospun dendritic ZnO nanofibers and its photocatalysis application

“…Figure (b) depicted the spectrum of the PVP–ZnAc 2 composite nanofibers and it was seemed the same as Figure (a). This indicated that most of the ZnO precursor was embedded in the PVP chain . Moreover, the strong absorption peak of the carbonyl group stretching vibration was shifted to 1670 cm −1 in the PVP–ZnAc 2 composite nanofibers.…”