Purifying Water With Novel Graphene-MOF Hybrid Membranes

Researchers at Purdue University and Wuhan University have developed a new hybrid membrane that advances water purification by combining laser-induced graphene (LIG) and multi-layers of metal-organic frameworks (MOFs).

Graphene has high solar absorption and permeability, while MOFs are known for their molecular sieving ability. However, both have limitations, such as the limited sieving range of MOFs and graphene's mediocre selective sieving capabilities.

By integrating both materials into the hybrid membrane, researchers have created a graphene-MOF membrane that uses a multi-level, multi-pore size sieving strategy to filter a wide range of water contaminants.

This novel hybrid membrane employs a micron graphene network to adsorb large molecules and oils. It also enhances filtration through its 10nm nanopores and utilizes hydroxyls and carboxyls to eliminate traces of heavy metal ions in the feed water.

Moreover, the graphene-MOF hybrid membrane has proven effective in removing volatile organic compounds. This feat is possible with its 0.34nm ZIF-8 pores or its continuous layer of MOF particles.

Read the full article here to learn more about the development of this new hybrid membrane.

Do you need high-purity reagent-grade water for your applications and projects? The cost-effective but high-quality lab water purification systems from Aqua Solutions can give what your lab requires. Discover the range of purification systems at https://www.aquaa.com/