Acid-Resistance and Self-Repairing Supramolecular Nanoparticle Membranes via Hydrogen-Bonding for Sustainable Molecules Separation.

ABSTRACT: Functional membranes generally wear out when applying in harsh conditions such as a strong acidic environment. In this work, high acid-resistance, long-lasting, and low-cost functional membranes are prepared from engineered hydrogen-bonding and pH-responsive supramolecular nanoparticle materials. As a proof of concept, the prepared membranes for dehydration of alcohols are utilized. The synthesized membranes have achieved a separation factor of 3000 when changing the feed solution pH from 7 to 1. No previous reports have demonstrated such unprecedentedly high-record separation performance (pervaporation separation index is around 1.1 × 10⁷  g m^-2  h^-1 ). More importantly, the engineered smart membrane possesses fast self-repairing ability (48 h) that is inh

SUBMITTER: Han W 

PROVIDER: S-EPMC8655207 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature