Ceramics-Silikáty

The ongoing build-up of waste glass in the environment highlights the vital role of material recycling, particularly glass recycling, in promoting sustainable development. Using waste glass as a raw material to create porous materials presents a practical and effective solution. This study investigates the influence of the ingredients on the properties of porous materials made from waste glass. The material samples were created by mixing liquid sodium silicate with glass powder in varying ratios of glass powder to liquid sodium silicate. Differential thermal analysis and thermal microscopy were employed to determine the calcination temperature. The samples were sintered at 790 °C to synthesise porous materials. The sintered porous materials were tested through a pore size distribution analysis and porosity measurements to evaluate the properties of the resulting product. The Fourier Transform Infrared Spectroscopy technique was also employed to assess the functional group composition of the product. The results indicated that incorporating liquid glass into waste glass can broaden the temperature range for foaming and enhance the material’s porosity. Most of the pores created are open, suggesting that the porous material derived from waste glass may be a suitable candidate to be used as an adsorbent.