Synthesizing Geopolymers from Martian Soil Simulants

Abstract

This study focuses on characterising geopolymers made from Martian soil simulant as a potential material for water purification membranes. The impact of formulation, curing process and pH is investigated. Three distinct batches of formulations are manufactured and tested. Geopolymers containing fume silica within the range of 1% to 5% exhibit the highest porosity coupled with prolonged mechanical resistance. Sodium silica improves the mechanical resistance and sodium hydroxide (NaOH) dispersion over time. All geopolymeric formulations can effectively remove contaminants from water. The geopolymer characterized by high fume silica content has the highest contaminants reduction due to the higher porosity.