18.
In this study, polymeric nanofibrous composites containing anatase TiO
2 short nanofibers (TiO
2-SNF) were successfully produced via electrospinning. The fabrication of the nanofibrous composite structure includes two steps. First, anatase TiO
2 nanofibers were obtained by calcination of electrospun PVP/TiO
2 nanofibers and then crushed into short nanofibers ranging from few microns in length. Second, these TiO
2-SNF were dispersed into polymer solutions and then electrospun into nanofibrous composites. We obtained nanofibers containing TiO
2-SNF from different polymer types including PMMA, PAN, PET and PC. The SEM and TEM imaging indicated that some of the TiO
2-SNF were fully covered by the polymeric matrix whereas some TiO
2-SNF were partially covered and/or stick on the surface of the fibers. The photocatalytic activity of nanofibrous composites containing TiO
2-SNF was evaluated by monitoring the photocatalytic decomposition of a model dye (rhodamine-6G) under UV irradiation.
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