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

Abstract

TiO2-NiO Composite have been synthesized as self-cleaning material on glass. TiO2 was prepared using titanium tetraisopropoxide (TTIP) by sol gel method, while TiO2-NiO composite was prepared from TiO2 synthesized with additional Ni(NO3)2.6H2O precursor. TiO2 synthesized powder was added to Ni2+ concentrated solution in aquadest so it formed crystalline layer on TiO2 powder. Core shell composite of TiO2-NiO was obtained through the drying process at 110 °C and calcined at 700 °C. Identification and characterization of NiOTiO2 composite were carried out using X-Ray Diffraction (XRD), and X-Ray Fluoresecence (XRF). XRD diffractograms show the appearance of TiO2 and NiO peaks. Another analysis with XRF showed that composition of TiO2-NiO composite are 2:1; 1:1 and 1:2 (w/w). The electronic spectrum from TiO2-NiO core shell result showed an increasing response in visible light so it can be applied as coating material in manufacturing technology of self cleaning glass.