摘要
沸石是一种内部孔隙结构丰富的多孔性物质,具有许多独特的性质。其基本结构单元为-SiO_4-、-AlO_4-或-PO_4-等四面体,由此延伸出沸石的多孔骨架,即各种不同的笼式结构。按照化学组分,沸石可以分为辉沸石(Stilbite)、钠沸石(Natrolite)、菱沸石(Chabazita)、方沸石(Analcime)、浊沸石(Laumontite)、片沸石(Heulandite)、丝光沸石(Mordenite)、斜发沸石(Clinoptilolite)等8个主要类型。沸石的应用广泛,尤以微孔分子筛为最,主要用于吸附、分离、催化等领域,在工业生产中发挥着重要的作用。
Zeolite is a porous material with plentiful inner pore structure,and it has many unique properties. The basic structural units of zeolite contain-Si O4-,-Al O4-and-PO4-tetrahedrons,and on this basis porous frameworks of zeolite are extended into various cage structures. According to chemical composition,zeolite can be divided into 8 categories. They are stilbite,natrolite,chabazita,analcime,laumontite,heulandite,mordenite and clinoptilolite. Zeolite can be used in many fields. In all applications,microporous molecular sieve which applies to adsorption,separation and catalysis is the most important and plays a significant role in industry.
出处
《北京信息科技大学学报（自然科学版）》
2017年第4期54-58,63,共6页
Journal of Beijing Information Science and Technology University
基金
北京师范大学测试基金资助(C17)
关键词
沸石
分子筛
结构
类型
zeolite
molecular sieve
structure
category
