Comparative Study of Physical and Optical Properties of Glasses from SiO2 and Napier Ash

Abstract

The aim of this paper is comparative study of physical and optical properties of glasses from SiO2and Napier ash (Pennisetum purpureumash (PA)). PA was selected from biomass power plant. Selected ash was sintered at different temperature (500, 800 and 1000 °C). The glasses containing in formula 55SiO2: 20Na2O : 1.0Al2O3: 13B2O3: 6.3CaO : 0.2Sb2O3: 4.5BaO. It has been found that the density and refractive index of PA glasses increases with a increasing sintering temperature. However, SiO2glass has density and refractive index more than PA glasses every different sintering temperature. The spectra of PA glass are shown cut-off wavelength around 330 nm at all glass samples.