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Self‐Supporting Porous Zeolite Membranes with Sponge‐like Architecture and Zeolitic Microtubes
Author(s) -
Wang Y.,
Tang Y.,
Dong A.,
Wang X.,
Ren N.,
Shan W.,
Gao Z.
Publication year - 2002
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(20020705)14:13/14<994::aid-adma994>3.0.co;2-9
Subject(s) - materials science , zeolite , porosity , sponge , membrane , chemical engineering , nanotechnology , porous medium , composite material , organic chemistry , catalysis , engineering , chemistry , botany , genetics , biology
Self‐supported porous zeolite membranes have been prepared in a simple but effective way using cellulose acetate membranes as templates. The spongy zeolite membranes possess unique ramified pore structures in three levels (see Figure), i.e., interconnected micrometer‐sized macropores among the zeolitic microtubes, channel‐like submicrometer‐sized pores inside the microtubes, and zeolite micropores (< 1 nm) on microtube walls.