Casting Polyvinylidene Difluoride on Graphene for Nanoscale Filtration Systems

Overview

Filtering molecules based on size is something that chemical engineers have been striving to achieve at a scalable level. The ability to filter molecules on size has a wide variety of applications, including but not limited to desalinization, bioprocessing, harnessing energy in fuel cells, and filtering out aerosols. Graphene is an atomically thin material that can sustain nano-sized pores that allow for smaller molecules to pass through at a high rate. Graphene alone is a delicate film and requires additional support for membrane applications. here we show that polyvinylidene difluoride (PVDF), provides a stable and supportive structure, with uniform pores to support graphene. PVDF has the potential to be a beneficial polymer for fabricating graphene membranes, but it has not been widely tested and researched. The goal of this project is to further study PVDF when cast upon graphene. The study aims to form consistent, uniform pores throughout the support structure and will also test different casting variables.

Competition history

• AJAS 2026 Category not listed

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