Template-free Secondary Growth Preparation of Zeolite Foams with Controllable Macropores
无模板剂二次生长法制备可调大孔的沸石泡沫

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.