Exfoliated Titanosilicate Material UZAR‐S1 Obtained from JDF‐L1

Abstract

Abstract 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.