Super rapid removal of copper, cadmium and lead ions from water by NTA-silica gel.

ABSTRACT: Copper (Cu²⁺), cadmium (Cd²⁺) and lead ions (Pb²⁺) are toxic to human beings and other organisms. In this study, a silica gel material modified with nitrilotriacetic acid (NTA-silica gel) was sensibly designed and prepared via a simple amidation procedure for the removal of Cu²⁺, Cd²⁺ and Pb²⁺ from water. The NTA-silica gels showed rapid removal performances for the three metal ions (Pb²⁺ (<2 min), Cu²⁺ and Cd²⁺ (<20 min)) with relatively high adsorption capacities (63.5, 53.14 and 76.22 mg g^-1 for Cu²⁺, Cd²⁺ and Pb²⁺, respectively). At the same concentration of 20 mg L^-1, the removal efficiencies of the three metals by the adsorbe

SUBMITTER: Li Y 

PROVIDER: S-EPMC9059273 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature