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Exfoliated Titanosilicate Material UZAR‐S1 Obtained from JDF‐L1
Author(s) -
Rubio César,
Casado Clara,
Gorgojo Patricia,
Etayo Fernando,
Uriel Santiago,
Téllez Carlos,
Coronas Joaquín
Publication year - 2010
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200900915
Subject(s) - microporous material , exfoliation joint , chemistry , intercalation (chemistry) , polysulfone , dispersion (optics) , chemical engineering , extraction (chemistry) , ion exchange , membrane , zeolite , inorganic chemistry , organic chemistry , graphene , ion , catalysis , biochemistry , physics , optics , engineering
A new material, UZAR‐S1, has been obtained by exfoliation of the layered precursor microporous titanosilicate JDF‐L1. The exfoliation consists of a first stage of proton exchange with histidine followed by intercalation with nonylamine and final extraction in HCl/water/ethanol solution. UZAR‐S1 is an exfoliated material composed of sheets of a few nanometers of thickness with a high aspect ratio, a BET specific surface area of 160 m 2 /g (JDF‐L1 scarcely adsorbs N 2 ), and a Si/Ti atomic ratio below 6. The dispersion of this material in commercial polysulfone results in an improved H 2 ‐selective mixed matrix membrane.