Tuning of surface wettability of RGO-based aerogels for various adsorbates in water using different amino acids†
Abstract
RGO-based aerogels with varied and controllable surface wettability were fabricated using different amino acids. Hydrophobic cys-RGO aerogels prepared by L-cysteine exhibited an outstanding adsorption toward oils and organic solvents, while hydrophilic lys-RGO aerogels obtained from L-lysine can be used as adsorbents for heavy metal ions in water.