Solvent Polarity Engineering in Low-DMF ZIF-7 Membrane Growth: Crystallization Behavior, Heterogeneous Intergrowth, and Microstructural Evolution.

Fernando Romero-Romero, Sergio Armando Serrano-Palafox, Vidal Morales-Mercado, Murali Venkata Basavanag Unnamatla, José Miguel Arriaga-Merced, Maria Fernanda Ballesteros-Rivas, Victor Varela-Guerrero

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Article in Molecules (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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7 authors.

Fernando Romero-RomeroFacultad de Química, Universidad Autónoma del Estado de México, Paseo Colón y Paseo Tollocan S/N, Toluca 50120, Estado de Mexico, Mexico.ORCID 0000-0002-9540-9057

Sergio Armando Serrano-PalafoxCentro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco, km 14.5, Toluca 50200, Estado de Mexico, Mexico.

Vidal Morales-MercadoCentro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco, km 14.5, Toluca 50200, Estado de Mexico, Mexico.ORCID 0009-0003-8560-6414

Murali Venkata Basavanag UnnamatlaFacultad de Química, Universidad Autónoma del Estado de México, Paseo Colón y Paseo Tollocan S/N, Toluca 50120, Estado de Mexico, Mexico.ORCID 0000-0001-7348-3259

José Miguel Arriaga-MercedCentro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco, km 14.5, Toluca 50200, Estado de Mexico, Mexico.ORCID 0000-0002-9223-911X

Maria Fernanda Ballesteros-RivasFacultad de Química, Universidad Autónoma del Estado de México, Paseo Colón y Paseo Tollocan S/N, Toluca 50120, Estado de Mexico, Mexico.

Victor Varela-GuerreroFacultad de Química, Universidad Autónoma del Estado de México, Paseo Colón y Paseo Tollocan S/N, Toluca 50120, Estado de Mexico, Mexico.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Molecular transport membranes are promising alternatives to conventional cryogenic separation processes. Here, solvent polarity effects were investigated by varying the DMF/MeOH ratio during the solvothermal synthesis of supported ZIF-7 membranes. A DMF:MeOH ratio of 1:3 preserved the characteristic sodalite topology while suppressing dense-phase formation. Methanol incorporation modified heterogeneous crystallization behavior, intercrystalline organization, membrane morphology, and film densification on α-alumina supports while reducing DMF consumption by approximately 75%. These effects are associated with solvent-mediated precursor solvation, Zn

Indexed as

heterogeneous crystallizationmicrostructural evolutionsolvent polarity engineeringZIF-7 membranes

Identifiers

PMID42451714

DOI10.3390/molecules31132348

PMCPMC13362548

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