Mesoporous silica materials was prepared by a sol-gel method,multi-amine functionalized materials was obtained through adding tetraethylenepentamine(TEPA) into mesoporous silica materials. The structure of TEPA-modified materials were characterized by infrared absorption spectrum(IR) and scanning electron microscope (SEM) and the X-ray diffraction (XRD). The total surface area is 1 052 cm~2 /g,average pore diameter is 3.86 nm and a pore volume is 1.194 mL /g. The aqueous solution of uranium best adsorption conditions were as follows: adsorption time of 30 min,pH of 5.2, the initial concentrati...
