A thin film nanocomposite membrane with pre-immobilized UiO-66-NH₂ toward enhanced nanofiltration performance.

ABSTRACT: A facile controlled interfacial polymerization strategy was proposed for the synthesis of novel thin film nanocomposite (TFN) membranes for enhanced nanofiltration performance. UiO-66 nanoparticles were aminated and pre-immobilized onto a polymer substrate via polydopamine (PDA) coating to achieve a continuous and defect-free polyamide dense layer. The mediation of the PDA coating could not only enhance the structural stability of TFN nanofiltration membranes, but also improve the dispersion and anchorage of UiO-66-NH₂, thus closely fixing the position of UiO-66-NH₂ nanoparticles on the polymer substrate. Moreover, since the amino group (-NH₂) further reacted with PDA via Michael addition or Schiff base reaction, the in situ mutual reac

SUBMITTER: Zhang X 

PROVIDER: S-EPMC9069876 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature