通过在碱性条件下正奎酸乙酯(TEOS)水解合成球形硅胶,用2-醛基吡啶和N-3-(三甲氧基硅基)丙基乙二胺在镉离子存在的条件下,对其表面进行修饰,从而形成对镉离子具有选择性吸附的印迹聚合物,并对其吸附性能进行了研究。
In this paper,spherical silica gel is synthesized by hydrolyzing tetraethyl orthosilicate(TEOS) under alkaline conditions.Then a new type of cadmium-imprinted polymer is prepared on the surface of spherical silica gel with N-[3-(trimethoxy-silyl) propyl]ethylene-diamine(TPED) and Pyridine-2-carboxaldehyde in the presence of cadmium ions,and its adsorption properties is studied.