SINTESA NANOFIBER TITANIUM DIOKSIDA (TiO2) ANATASE MENGGUNAKAN METODE ELECTROSPINNING

Abstract

Synthesis of anatse titanium dioxide (TiO2) nanofiber by electrospinning method. This research reported the synthesis of nanofiber anatase titanium dioxide (TiO 2) using electrospinning. To produce nanofiber, the precursor solution was passed through a capillary of syringes given a positive DC voltage of 13 kV and then as-prepared nanofiber annealed at temperature of 500C for 1 hour. The annealed samples were then analyzed using a scanning electron microscope (SEM) and x-ray diffractometer (XRD). In this study, the effect of changes in the flow rate of the precursor solution and the weight of raw material of titanium tetraisopropoxide (TTIP) to the crystallinity and morphology of the sample were systematically investigated. This research resulted that the TiO 2 nanofiber have a mixed phase between anatase and rutile. The amount of rutile TiO 2 could be reduced by increasing the flow rate of precursor solution. The optimum flow rate to obtain the pure anatase TiO 2 was adjusted at 2.0 mL/h. In addition. TTIP weight affected the morphology of nanofiber which by increasing the amount of TTIP resulted morphological change to become more dense and uniform in shape and size.