Sankar, Siva NemalaSiva NemalaSankarFernandes, JoãoJoãoFernandesdos Santos, Marília BarreirosMarília Barreirosdos SantosEspiña, BegoñaBegoñaEspiñaAlpuim, PedroPedroAlpuimDíez, Ander GarcíaAnder GarcíaDíezLanceros-Mendez, SenentxuSenentxuLanceros-MendezSaini, LalitaLalitaSainiKaushik, SuvigyaSuvigyaKaushikKalon, GopinadhanGopinadhanKalonCapasso, AndreaAndreaCapasso2025-08-312025-08-312023-06-0210.1002/adfm.2022148892-s2.0-85150506356http://repository.iitgn.ac.in/handle/IITG2025/26763Carbon-based materials, such as graphene oxide and reduced graphene oxide membranes have been recently used to fabricate ultrathin, high-flux, and energy-efficient membranes for ionic and molecular sieving in aqueous solution. However, these membranes appeared rather unstable during long-term operation in water with a tendency to swell over time. Membranes produced from pristine, stable, layered graphene materials may overcome these limitations while providing high-level performance. In this paper, an efficient and “green” strategy is proposed to fabricate µm-thick, graphene-based laminates by liquid phase exfoliation in Cyrene and vacuum filtration on a PVDF support. The membranes appear structurally robust and mechanically stable, even after 90 days of operation in water. In ion transport studies, the membranes show size selection (>3.3 Å) and anion-selectivity via the positively charged nanochannels forming the graphene laminate. In antibiotic (tetracycline) diffusion studies under dynamic conditions, the membrane achieve rejection rates higher than 95%. Sizable antibacterial properties are demonstrated in contact method tests with Staphylococcus aureus and Escherichia coli bacteria. Overall, these “green” graphene-based membranes represent a viable option for future water management applications.trueanti-fouling | bacterial adhesion | liquid phase exfoliation | pristine graphene | water managementArticlehttps://doi.org/10.1002/adfm.202214889161630282 June 2023222214889arJournal23WOS:000945949900001