Open AccessSynthesis of titania fibers by electrospinning and its photocatalytic degradation properties
Author(s) -
Lei Yan,
Feng Chen,
Yuanzheng Tang,
Zhigang Chen
Publication year - 2021
Publication title -
characterization and application of nanomaterials
Language(s) - English
Resource type - Journals
ISSN - 2578-1995
DOI - 10.24294/can.v4i1.1329
Subject(s) - electrospinning , materials science , scanning electron microscope , calcination , spinning , nanofiber , chemical engineering , photocatalysis , transmission electron microscopy , thermogravimetric analysis , degradation (telecommunications) , titanate , fiber , nuclear chemistry , composite material , polymer , nanotechnology , catalysis , ceramic , organic chemistry , chemistry , telecommunications , computer science , engineering
The electrospinning precursor solution was prepared by dissolving polyvinyl pyrrolidone as template, tetrabutyl titanate as titanium source, and acetic acid as inhibitor. The TiO2 nanofilms were prepared by precursor solution electrospinning and subsequent calcination. Thermal gravimetric analysis (TG), scanning electron microscopy (SEM), X-ray powder diffraction (XRD), and transmission electron microscopy (TEM) were used to characterize and analyze the samples. The influence of technological parameters on spinning fiber morphology was also studied. The results indicate that the TiO2 nanofibers morphology is good when the parameters are as follows: voltage 1.4×104 Vspinning distance 0.2 mtranslational velocity 2.5×10-3 m·s-1, flow rate 3×10-4 m·s-1, and needle diameter 3×10-4 m. The diameter of the fibers is about 150 nm. With the 1×10-4 mol·L-1 methylene blue solution used as simulated degradation target, the degradation rate is 95.8% after 180 minutes.