Influence of Dispersed TiO₂ Nanoparticles via Steric Interaction on the Antifouling Performance of PVDF/TiO₂ Composite Membranes.

ABSTRACT: Herein, the influence of various contents of polyethylene glycol (PEG) on the dispersion of TiO2 nanoparticles and the comprehensive properties of PVDF/TiO2 composite membranes via the steric hindrance interaction was systematically explored. Hydrophilic PEG was employed as a dispersing surfactant of TiO2 nanoparticles in the pre-dispersion process and as a pore-forming additive in the following membrane preparation process. The slight overlap shown in the TEM image and low TSI value (<1) of the composite casting solution indicated the effective dispersion and stabilization under the steric interaction with a PEG content of 6 wt.%. Properties such as the surface pore size, the development of finger-like structures, permeability, hydrophilicity and Zeta potential were obviously enhanced. Th

SUBMITTER: Zhang J 

PROVIDER: S-EPMC9694972 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature