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Self-standing zeolite foam monoliths with hierarchical micro-meso-macroporous structures.


ABSTRACT: The zeolite monoliths were synthesized by a facile polymer scaffold template assisted hydrothermal method. The selected foam-shaped template of a polyurethane (PU) foam monolith, was used to prepare the self-standing zeolite foam (ZF) monolithic materials. The obtained ZF products can preserve the same size, shape and macroporous network structure of the original PU foam scaffold template, although the zeolite nano-crystallites had been fully substituted for the PU template to form the new skeleton struts and walls. The as-synthesized ZF products demonstrated abundant hierarchical porosity (involving triple micro-, meso- and macropores). Meanwhile, compared with the conventional zeolite powders, the self-standing ZF monolithic materials exhibited greater total pore volume and nearly three times higher mesopore volume, suggesting wider applications as catalysts, catalyst supports and adsorbents in industry.

SUBMITTER: Chen J 

PROVIDER: S-EPMC7481723 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Self-standing zeolite foam monoliths with hierarchical micro-meso-macroporous structures.

Chen Jiawei J   Liu Fangfang F   Li Yongfeng Y   Dou Yongshen Y   Liu Sanmao S   Xiao Liangjun L  

Royal Society open science 20200812 8


The zeolite monoliths were synthesized by a facile polymer scaffold template assisted hydrothermal method. The selected foam-shaped template of a polyurethane (PU) foam monolith, was used to prepare the self-standing zeolite foam (ZF) monolithic materials. The obtained ZF products can preserve the same size, shape and macroporous network structure of the original PU foam scaffold template, although the zeolite nano-crystallites had been fully substituted for the PU template to form the new skele  ...[more]

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