无模板剂二次生长法制备可调大孔的沸石泡沫

无机材料学报, 2005, 20(3): 635-640.

无模板剂二次生长法制备可调大孔的沸石泡沫

王德举 , 朱桂波 , 张亚红 , 刘仲能 , 谢在库 , 唐颐

1.1. 复旦大学化学系上海市分子催化和功能材料重点实验室, 上海 200433

1.1. Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials

Department of Chemistry

Fudan University

China

Shanghai 201208

China

关键词：模板 , secondary growth , zeolite , assembly

Template-free Secondary Growth Preparation of Zeolite Foams with Controllable Macropores

WANG De-Ju , ZHU Gui-Bo , ZHANG Ya-Hong , LIU Zhong-Neng , XIE Zai-Ku , TANG Yi

Keywords： template , 二次生长 , 沸石 , 组装

利用聚氨酯泡沫为模板,经纳米silicalite-1沸石晶种化后,在不含有机模板剂的凝胶体系中进行二次生长,制备了具有丰富可调大孔的ZSM-5沸石材料,该材料保持了聚氨酯泡沫模板的大孔结构.这种沸石构建的大孔材料可以在一定程度上消除扩散限制,有望使沸石在吸附、分离以及催化领域能够得到更有效的利用.

By using the nanosized silicalite-1 zeolite preseeding polyurethane foams (PUFs) as templates combined with the zeolite seed-induced secondary growth in a synthesis gel free from organic templates, the large monolithic ZSM-5 zeolite foams which well inherit the morphology of PUF were simply prepared. The novel macroporous materials constructed by the zeolite units can eliminate the diffusion in some degree and have more effective promised applications in adsorption, ion exchange and catalysis.

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