Multifunctional Composite Including Inorganic Nanoparticles for Modifying Polymer Macroporous Filtration Membrane
Year: 2026
Type: conference-paper
Abstract: Commercial microfiltration membranes made of expanded polytetrafluoroethylene were modified with polymer-inorganic composite containing zirconium hydrophosphate (ZHP), additions of silver nanoparticles (AgNPs) and carbon dots (CDs). As a results, the membranes were transformed into ultrafiltration materials. The polymer fills macropores of the membrane, the inorganic constituents perform hydrophilizing function preventing fouling. The inorganic nanoparticles improve mechanical properties of the membranes, they are also responsible for the negative charge of the surface and repulsion of organic species and bacteria, which usually carry the same charge. The sample containing AgNPs exhibits high bactericidal activity indicating the membrane resistance against biofouling. Since polymer-inorganic membranes show no deformation under the influence of pressure, they can be used in highly efficient tubular modules instead of fragile and more dimensional ceramic materials. The membranes can be applied to water treatment and food industry. They remove turbidity from surface water practically completely, the removal degree of proteins from milky whey reaches 97%
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7225754927