|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||2018 Symposium on Functional Nanomaterials: Discovery and Integration of Nanomaterials
||M-4: Development of Graphene Oxide Based Materials for the Adsorption of Arsenic in Water
||Ana Cecilia Reynosa-Martínez, Ana Gabriela Navarro-Tovar, Waldo Roberto Gallegos-Perez, Eddie Lopez-Honorato
|On-Site Speaker (Planned)
The contamination of water wells by arsenic is an important challenge that affects millions of people worldwide. Although nanomaterials are capable of adsorbing arsenic with high efficiencies in laboratory tests, when used in actual waters with high concentration of salts these materials considerably reduce their efficiency. In this work we show the synthesis of graphene oxide with different degrees of oxidation functionalized with different thiol based molecules (cysteamine, SO3H, sulfanilic acid and p-sulfocalixarenes). We compare the effect of pH and secondary salts (phosphates and carbonates) on the maximum adsorption capacities for As(III) and As(V). We show that it is possible to increase the selectivity of graphene oxide towards arsenic and reduce the effect of secondary molecules by controlling the functionalization of graphene oxide.
||Planned: Supplemental Proceedings volume