分级结构介孔-大孔材料及其实际应用  

Hierarchical Meso-Macroporous Materials and Their Practical Applications

作　　者：刘蕾[1] 马天翼[1] 袁忠勇[1] 

机构地区：[1]南开大学化学学院新催化材料科学研究所,天津300071

出　　处：《石油化工》2011年第3期237-246,共10页Petrochemical Technology

基　　金：国家自然科学基金项目(20973096;21073099);天津市科技计划项目(08JCZDJC21500);高等学校博士点基金项目(20070055014)

摘　　要：介绍了具有分级结构的大孔-介孔材料的合成方法(包括双模板法、单一表面活性剂/无模板剂一步合成法和生物模板法)及其实际应用。分级结构的介孔-大孔材料具有内部相互连通的孔道结构,与具有单一孔径的材料相比,分级孔结构的材料不但更有利于反应物分子的扩散,还能保持大比表面积和一定的孔道尺寸,因此在水中污染物的吸附分离、催化剂和催化剂载体、太阳能转化利用、电化学催化及药物的传输和缓释等方面具有广泛的应用。This paper reviewed synthetic processes for hierarchical meso-macroporous materials, including double-template method, one-step single surfactant/template-free method and biotemplate method, and their applications. Compared to single-sized pore materials, the hierarchical materials containing both interconnected macroporous and mesoporous structure are favorable for reactant molecular diffusion ,due to increased mass transport through the materials and the maintenance of larger specific surface area at the level of fine pore system. These novel meso-macroporous materials can be widely applied to adsorption, separation of water pollutants, catalysis, solar cell electrode materials, fuel cell electrode materials, and controlled delivery and release of drug.

关 键 词：介孔-大孔材料 分级结构 吸附 催化 

分 类 号：TQ424.25[化学工程]