沸石材料的多级结构化及其在生命科学中新应用

Research Progress on the Hierarchical Zeolite and Its Potential Application in Life Science

当前沸石材料研究的一个热点是在通常只具有微孔结构的沸石中产生介孔,以增加活性位的可接触性,加快反应物在沸石孔道里的扩散,提高沸石吸附和催化的效率。综述了近年来在沸石多级结构化方面的研究进展,着重介绍了碱溶液刻蚀法、介孔间隙合成法和碳模板剂法等各种途径,并简介了沸石材料在生命科学中的一些新应用,包括沸石止血材料、控释药物和生物芯片。

One of the hot-points in the research of zeolite functional materials is to introduce the mesopore in the microporous zeolite forming hierarchical structure,in order to enhance the accessibility of active sites and to accelerate the diffusion of reactants in the channel of zeolite,increasing the efficiency of zeolite in adsorption and catalysis.In this article the progresses in the synthesis of hierarchical zeolite with mesopores are reviewed,emphatically on the alkaline-tailored method,synthesis within limited mesoporous space and the carbon-template method.In addition,some explorations on the potential application of zeolite in life science are described,including the modified zeolite hemostatic dressings,controllable releasing drug and biochip.