SINTESIS TiO2 RUTIL NANOROD BERORIENTASI VERTIKAL PADA KACA KONDUKTIF; SYNTHESIS OF VERTICALLY ORIENTED NANOROD RUTILE TiO2 ON CONDUCTING GLASS

SITANGGANG, LUKAS, Yateman Arryanto

2016 | Skripsi | FMIPA

Vertically oriented nanorods rutile TiO2 were prepared on Fluorine Doped Tin Oxide (FTO) conducting substrate in 6M hydrochloric acid solution by hydrotermal deposition method using titanium(IV) isopropoxide (TTIP) as the precursor. The effect of temperature to the growth of nanorods was studied. The temperature synthesis was varied at 150, 170, 180 and 190 °C to find the optimum temperature of the growth of nanorod. The effect of TTIP concentration was also varied at 0.009, 0.026, 0.04, 0.05 and 0.086 M. The as-prepared TiO2 nanorod thin film was characterized by X-ray Diffractometer (XRD), Scanning Electron Microscope (SEM), and Specular Reflectance UV-Visible spectrophotometer. The results show that the growth mechanism of TiO2 nanorod was priorly forming the anatase phase of TiO2 which then transformed to rutile nanorods. Hydrothermal temperature affected the growth of (002), (210) and (301) rutile crystal planes thus the orientation of nanorods. XRD and SEM analysis showed that synthesis at 170 °C had the highest density and vertical orientation of nanorods due to the increasing of growth (002) plane while the growth of (210) and (301) remain low. The increasing diameter and thickness of nanorods can be adressed to the increasing TTIP concentration. The bandgap energy found was 3.04, 2.95 and 3,02 eV for temperature synthesis at 150, 170 and 190 °C, respectively.

Kata Kunci : TiO2 rutile nanorod, hydrothermal method, vertical orientation