In this study, positron annihilation lifetime spectroscopy (PALS) is applied to explain the flux-
enhancement mechanism in thin-film-composite (TFC) membranes prepared by using …

The development of nano-enabled composite materials has led to a paradigm shift in the
manufacture of high-performance nanocomposite membranes with enhanced permeation …

Positron annihilation spectroscopy (PAS) is a novel method that provides molecular-level
information about complex macromolecular structure in a manner different from, but …

Previous techniques probed only static defects in polymeric membranes. However, spaces
within polymer chains must be dynamic, which allows them to move freely. The advent of …

Transition-metal carbides (MXenes), multifunctional 2D materials, have caught the interest of
researchers in the fabrication of high-performance nanocomposite membranes. However …

Thin film composite (TFC) polyamide (PA) membranes are typically prepared via an
interfacial polymerization (IP) reaction between polyfunctional amine and polyacyl chloride …

In this article, novel nanofiltration (NF) membranes with highly selective surface and fast
water and ion transport channels were fabricated for the valorization of biogas slurry. Unlike …

The free-volume depth profile of asymmetric polymeric membrane systems prepared by
interfacial polymerization is studied using positron annihilation spectroscopy coupled with a …

Organic solvent reverse osmosis (OSRO) is currently considered as an energy-efficient
membrane technology for separation of organic liquid mixtures. The conventional …

For polyamide used in reverse osmosis (RO) membranes, the content of pendant acid
groups is critical to its performance. In this work, FTIR was used to analyze the acid contents …