Polyamide thin film nanocomposite with in-situ co-constructed COFs for organic solvent nanofiltration

Recent advances of pure/independent covalent organic framework membrane materials: preparation, properties and separation applications

“…Researchers have studied not only three-dimensional COF membranes but also two-dimensional COF membranes extensively. For example, Yin 118 and colleagues prepared COF polyamide composite membranes by in situ interfacial polymerization. In contrast to the pristine membrane, the introduction of COF increased the membrane aperture to 0.02 nm.…”

Recent advances in the fabrication of organic solvent nanofiltration membranes using covalent/metal organic frameworks

“…In this regard, Yin et al fabricated ultra-smooth and ultra-thin film nanocomposite based on polyamide and one-step in situ co-polymerization of COFs for OSN. 72 For this aim, the substrate was placed on a glass plate, and aqueous m -phenylenediamine comprising p -phenylenediamine was placed on the surface of the substrate for 8 seconds. After drying at room temperature, trimesoyl chloride solution containing 1,3,5-triformylphloroglucinol was poured on the surface of the substrate (6 seconds for conducting the in situ co-polymerization).…”

Microporous polyarylate membranes based on 3D phenolphthalein for molecular sieving

“…This creates the potential for applying PAR nanofiltration membranes in high value-added pharmaceutical separations requiring accurate molecular sieving, exemplified here by the enrichment of important raw drugs (9,(47)(48)(49). In this regard, the selection of three PAR membranes for separation testing of raw drugs with different functions and structures demonstrates the competence of the formed membranes to handle a wide range of drugs.…”

“…Traditional liquid separation processes, such as distillation or evaporation, require considerable cost and energy consumption to purify high valueadded solutes from organic solvents (4,5). The application of advanced membrane technology in separation, purification, and concentration processes is an effective way to increase economic benefits or reduce investment in the pharmaceutical industry (6)(7)(8)(9). Consequently, membrane technology, which has garnered global attention, is widely recognized as the most promising major production technology in the 21st century.…”