Fabrication and characterization of polyamide-fullerenol thin film nanocomposite hollow fiber membranes with enhanced antifouling performance

Novel thin‐film nanocomposite membrane with water‐soluble polyhydroxylated fullerene for the separation of Mg2+/Li+ aqueous solution

“…A new peak could be observed at 288.6 ± 0.1 eV from Figure (b‐d), which was ascribed to the ester group OCO formed by the reaction between the hydroxyl on PHF and acyl chloride from TMC. These results were in accordance with the investigation of Pliskoa et al . In addition, TFNPHF‐010 possessed the strongest ester group peak intensity among all developed PHF‐doped TFN membranes.…”

“…Thus, when the PHF loading higher enough, the over‐dosage could not be dissolved and even hard to disperse due to the bad affinity between carbon material nature and water. Although the solubility of PHF power could be further enhanced by deeper hydroxylation and the increasing loading content may also further improve the performance of membranes, which were mainly attribute to their much more hydrophilic nature and the change of charge quantity . However, in this work, we have developed the PHF with the “ n ” about “16” according to the proposed simple and green method, which cost less, effective, and easy to control.…”

“…Conversely, the C/N and O/N ratios were decreased, indicating that the introduction of PHF affected the reaction between PIP and TMC. Firstly, the interaction of PHF and PIP in the aqueous phase solution would decrease the C/N ratio; Secondly, the reaction between PHF and TMC would result in a reduced content of acyl chloride and thus decreased the O/N ratio of the polyamide layer formed …”

“…All mixed‐matrix membranes exhibited good selectivity and stability when the numbers of hydroxyl groups in PHFs was 22–24 or 12. Pliskoa et al . fabricated novel polyamide‐PHF (22‐24) TFN hollow fiber membranes.…”

Thin Film Composite and/or Thin Film Nanocomposite Hollow Fiber Membrane for Water Treatment, Pervaporation and Gas/Vapor Separation

“…Plisko et al [25] incorporated fullerenol C 60 (OH) [22][23][24] into the polyamide (PA) selective layer and developed thin film nanocomposite (TFN) hollow fiber membranes for low molecular weight cut-off ultrafiltration. The membranes were fabricated via interfacial polymerization technique by alternately pumping fullerenol dispersion in triethylenetetramine (TETA) aqueous solution and isophthaloyl chloride solution in hexane through polysulfone hollow fiber membranes.…”