Resumen: Background: This work addresses the use of self-supported single-wall carbon nanotube (SWCNT) buckypapers asfilters ormembranes to treat air or water streams to reduce the concentration of pollutants.Results: The fabrication of the buckypapers was carried out by a facilefiltration method. The performance of the buckypaper asan airfilter was tested with a NaCl aerosol obtaining a permeance of 241 m3m−2h−1bar−1and afiltration efficiency of99.9991%. The performance of the buckypaper as a water ultrafiltration (UF) membrane was studied separating ZIF-8 nanopar-ticles of 30, 50 and 120 nm in diameter, achieving a permeance of 124 L·m−2h−1bar−1and a rejection of 99.99%.Conclusions: A simple technique is described for the rapid fabrication of self-supported SWCNT buckypaper membranes with afiltration method resulting in an excellent performance in both air and waterfiltration. In addition, because of the acquired con-trol of ZIF-8 crystallization, particles of different sizes of this material were synthesizedad hocto serve as a reference solute ofUF separation. Idioma: Inglés DOI: 10.1002/jctb.7231 Año: 2023 Publicado en: JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY 98, 1 (2023), 159-167 ISSN: 0268-2575 Factor impacto JCR: 2.8 (2023) Categ. JCR: ENGINEERING, CHEMICAL rank: 80 / 170 = 0.471 (2023) - Q2 - T2 Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 108 / 231 = 0.468 (2023) - Q2 - T2 Categ. JCR: ENGINEERING, ENVIRONMENTAL rank: 52 / 81 = 0.642 (2023) - Q3 - T2 Categ. JCR: BIOTECHNOLOGY & APPLIED MICROBIOLOGY rank: 88 / 174 = 0.506 (2023) - Q3 - T2 Factor impacto CITESCORE: 7.0 - Inorganic Chemistry (Q1) - Organic Chemistry (Q1) - Chemical Engineering (all) (Q1) - Fuel Technology (Q2) - Renewable Energy, Sustainability and the Environment (Q2) - Biotechnology (Q2) - Pollution (Q2) - Waste Management and Disposal (Q2)