Selective adsorption of anionic dyes and carbon dioxide using uncarbonized PVA aerogels incorporated with GO/PANI hybrids

The environmental devastation, caused by unscrupulous and recurrent human intervention in the ecosystem is a global concern. Within the scope of relevance, this work discusses the development of adsorbents which eliminate both water and air pollutants. Graphene oxide/polyaniline hybrid incorporated polyvinyl alcohol (PVA) composite aerogels were successfully fabricated by environmentally friendly lyophilization method. Various fillers such as polyaniline (PANI), graphene oxide (GO), reduced graphene oxide (rGO), binary hybrids of GO/PANI and rGO/PANI was synthesized and characterized for structural and morphological peculiarities. The filler system which shows the highest anionic dye (model organic pollutant) adsorption ability was selected for the preparation of PVA composite. The freeze dried aerogel samples were characterized and it shows 98