Coordination/cation exchangeable dual sites intercalated multilayered T3C2Tx MXene for selective and ultrafast removal of thallium(i) from water

By intercalating KOH into multilayered Ti 3 C 2 T x , an efficient adsorbent with coordination/cation exchangeable sites is developed for Tl + removal. The –OH sites can coordinate Tl + while the exchange of K + /Tl + contributes selective and fast adsorption.