Adsorption of uranium(VI) from groundwater by amino-functionalized clay

A kind of amino-functionalized clay was prepared by grafting APTES from in the Alxa area (Inner Mongolia, China), and its application for U(VI) removal groundwater studied this work. The results indicate that sorption strongly depended on pH ions. presence amino functional groups significantly enhances adsorption uranium groundwater. isotherms fitted well with Langmuir model, whereas kinetics could be a pseudo-second-order model. These findings can effectively adsorb complex samples.