Influence of PVP concentration and mixed solvents on the morphology of SnO2 nanofibers via electrospinning.

This research investigates the various of a Polyvinylpyrrolidone (PVP)/Stannous Chloride nanofiber in morphology by electrospinning. Polyvinylpyrrolidone (PVP)/Stannous Chloride nanofiber were electrospun using a series of PVP concentration (8, 10 and 12 wt%) dissolved in different solvent EtOH/DMF mixture ratio (100:0, 60:40, 50:50, 40:60, 0:100). The quartz substrate with Polyvinylpyrrolidone (PVP)/Stannous Chloride nanofibers are annealed at 800°C for 2 hours to produce SnO₂ nanofibers of a crystalline phase of rutile cassiterite. As observed, the distribution of SnO₂ are continuos and random and can reach micrometer long in range. The different PVP concentration and mixed EtOH/DMF solvent produces different SnO₂ nanofibers morphologies in size were observed. The best result of nanofiber morphology was from 10% PVP with solvent mixtures EtOH/DMF at 50:50 which produced SnO₂ nanofiber with diameter 82nm. [ABSTRACT FROM AUTHOR]