Improving method of TiO2-Fe2O3 composite materials for self-cleaning glass preparation

Abstract

Fe2O3-TiO2 composite have been synthesized as a self-cleaning material on glass. TiO2 was prepared from titanium tetraisopropoxide (TTIP) by sol gel method. Meanwhile, Fe2O3-TiO2 composite was prepared from TiO2 synthesized with additional precursor Fe(NO3)3•9H2O. TiO2 synthesized powder was added to Fe3+ solution in aquadest so it formed crystalline layer on TiO2 powder. Core shell composite of Fe2O3-TiO2 was obtained after calcination on temperature 600 °C. Identification and characterization of composite by X-Ray Difraction (XRD) showed that there are difractogram peaks of TiO2 and Fe2O3. Another analysis by X-Ray Fluoroscence (XRF) showed that composition of Fe2O3-TiO2 composite are 1:1, 1:1.5, 1:2, and 1:3 (w/w). The morphology of composite shown by Scanning Electron Microscope (SEM) that explained coverage character of TiO2 with Fe2O3 formed core shell type. The electronic spectrum of Fe2O3-TiO2 core shell result showed an increasing response in visible light so it can be aplicated as a coating material in manufacturing technology of self cleaning glass.