International Journal of Academic Multidisciplinary Research (IJAMR)
  Year: 2023 | Volume: 7 | Issue: 11 | Page No.: 201-207
Alumina-silica Synthesis Uses Glass Waste as Silica Source: Hydrothermal Time Variations Download PDF
Indah Agustien and Sriatun

Abstract:
Synthesized a silica-alumina material where glass waste as the silica source and Tetra-ethylorthosilicate (TEOS) as the supporting silica source has done. The Al source as aluminum hydroxide Al(OH)3 and cetyltrimethylammonium bromide (CTAB) as a structure directing agent. The synthesis of silica-alumina material was carried out by mixing sodium silicate, TEOS, sodium aluminate, CTAB surfactant, and distilled water, then stirring using a magnetic stirrer for ± 30 minutes to produce a gel. The gel obtained was then heated at a temperature of 100°C with varying heating times of 48, 96 and 144 hours, then aged for 2 days. The solid washed using distilled water and dried, then the solid was calcined at a temperature of 550°C for ± 5 .5 hours. The final products were characterized by FTIR, XRD and Nitrogen gas adsorption methods using the BET equation. Based on data analysis, it can be concluded that increasing the hydrothermal time actually reduces the product crystallinity and porosity.