Effects of Different TiO₂/CNT Coatings of PVDF Membranes on the Filtration of Oil-Contaminated Wastewaters.

ABSTRACT: Six different TiO₂/CNT nanocomposite-coated polyvinylidene-fluoride (PVDF) microfilter membranes (including -OH or/and -COOH functionalized CNTs) were evaluated in terms of their performance in filtering oil-in-water emulsions. In the early stages of filtration, until reaching a volume reduction ratio (VRR) of ~1.5, the membranes coated with functionalized CNT-containing composites provided significantly higher fluxes than the non-functionalized ones, proving the beneficial effect of the surface modifications of the CNTs. Additionally, until the end of the filtration experiments (VRR = 5), notable flux enhancements were achieved with both TiO₂ (~50%) and TiO₂/CNT-coated membranes (up to ~300%), compared to the uncoated membrane. The irreversible filtration

SUBMITTER: Fazekas AF 

PROVIDER: S-EPMC10608089 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature