Effects of Feed Solution pH on Polyelectrolyte Multilayer Nanofiltration Membranes.

ABSTRACT: Over the past decade polyelectrolyte multilayer (PEM)-based membranes have gained a lot of interest in the field of nanofiltration (NF) as an alternative to conventional polyamide-based thin film composite membranes. With great variety in fabrication conditions, these membranes can achieve superior properties such as high chemical resistance and excellent filtration performance. Some of the most common polyelectrolytes used to prepare NF membranes are weak, meaning that their charge density depends on pH within the normal window of operation relevant for potential applications (pH 0-14). This might cause a dependency of membrane properties on the pH of filtered solutions, as indicated by other applications of PEMs. In this work, the susceptibility of membrane structure (swelling and surfac

SUBMITTER: Junker MA 

PROVIDER: S-EPMC9841528 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature