Remotion of toxic contaminants from water by silica and silica/GpO aerogel-based adsorbents

Nowadays, synthetic dyes are widely used in industries such as printing, textiles, cosmetics, etc., being sources of pollution of water. New materials as silica aerogel (AS) is a promising and suitable adsorbent for removing toxic substances from water and has unique properties, in this work we reports the synthesis and drying of silicon oxide (SiO۲) aerogels modified with partially oxidized graphene (GpO), using rice husk ashes with KOH in an aqueous medium and incorporating graphene oxide sheets, which were synthesized from the activation of rice husk ashes with KOH at ۸۰۰°C. The nanomaterials were characterized using UV-Vis, FTIR, SEM, AFM techniques. The adsorbents material obtained were used in the adsorption of methylene blue, they showed that the AS modification with partially oxidized graphene greatly improved the adsorption of the methylene blue dye present in aqueous solutions, the adsorption curves were measured through the technique of UV Vis.

کلیدواژه ها:

Aerogel ، silica ، graphene ، rice husk ash ، adsorption