Open AccessStudy of structural and optical properties of Fe(III)-doped TiO2 prepared by sol-gel method
Author(s) -
Linda Jati Kusumawardani,
Yulian Syahputri
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/299/1/012066
Subject(s) - materials science , titanium dioxide , titanium , diffuse reflectance infrared fourier transform , scanning electron microscope , sol gel , annealing (glass) , bet theory , fourier transform infrared spectroscopy , analytical chemistry (journal) , nuclear chemistry , doping , adsorption , mineralogy , chemical engineering , chemistry , photocatalysis , metallurgy , nanotechnology , catalysis , composite material , chromatography , optoelectronics , biochemistry , engineering
This study investigated the structural and optical properties of Iron(III)-doped titanium dioxide (Fe-TiO 2 ) powders which were synthesized by sol-gel method with a post-annealing temperature at 500°C. Iron(III)-doped titanium dioxide was prepared from Titanium (IV) Isopropoxide and Iron (III) Chloride (FeCl 3 ). Iron (III) Chloride was added in different concentration (5, 7.5 and 10 % w/w). The synthesis powders were characterized by FTIR, Diffuse Reflectance Spectroscopy (DRS), Field Effect Scanning Electron Microscopy (FESEM), X-ray Diffraction (XRD) and BET. FESEM analysis showed the morphology of 10 % (w/w) Fe doped TiO 2 were homogeneous with the presence of less aggregate of iron. Meanwhile, The surface area of the sample TiO 2 -Fe 7.5% calculated from the BET adsorption plot is 107.096 m 2 /g. This surface area is higher than the sample TiO 2 -Fe 10% is 95,241 m 2 . It is confirmed that iron insert to the pore of TiO 2 . DRS Analysis revealed the light absorption in the visible region was increased with increasing the iron concentration up to 10% (w/w).