Investigasi Struktur dan Energi Band Gap Partikel Nano Tio2 Hasil Sintesis Menggunakan Metode Sol-Gel

Abstract

TiO 2 is a semiconductor material that widely applied in various fields due to its superiority both in terms of physical and chemical properties. In this study, the TiO 2 nanoparticles was synthesized using sol-gel method. The synthesis of TiO 2 nanoparticles was started by reacted TiCl 3 with aquades and titrated with ammonium hydroxide and then followed by calcination process at 600 0 C for 1.5 hours. The structural characteristics were investigated using XRD. The fungsional groups of the TiO 2 nanoparticles were characterized by FTIR. The optical properties of the TiO 2 nanoparticles were determined using UV-Vis spectrometer. The morphology of the sample was characterized using SEM. The results show that the TiO 2 has structure as anatase phase. The data analysis using the Scherrer’s equation show that the particle crystallite size of is about of 9.77 nm. The energy band gap value of the TiO 2 is 3.28 eV. Based on the SEM image, the agglomeration of the sample was formed with the average diameter of particle size of TiO 2 is about 92 nm. DOI: http://dx.doi.org/10.17977/um024v3i12018p008