PIM-1 membranes containing POSS - graphene oxide for CO2 separation

Mohsenpour, S. ; Ameen, A. W. ; Leaper, S. ; Skuse, C. ; Almansour, F. ; Budd, P. M. ; Gorgojo Alonso, P. (Universidad de Zaragoza)

Resumen: PIM-1 mixed matrix membranes (MMMs) were fabricated with polyhedral oligomeric silsesquioxane (POSS) and graphene oxide (GO) functionalized with POSS (GO-POSS), and tested for CO2/N2 (single gas) and CO2/CH4 (1:1, v:v gas mixture). The CO2 permeability of the best performing fresh MMM (containing 0.05 wt% GO-POSS) was ~ 12000 Barrer, which is 69% higher than that of the neat PIM-1 membrane, with about the same selectivity (CO2/CH4 selectivity ~ 12 and CO2/N2 selectivity ~ 20). In both cases, the gas separation data surpass the 2008 Robeson upper bound. In addition to the initial CO2 permeability enhancement, the use of GO-POSS is an efficient strategy to slow down physical aging. The MMM at a filler loading of 0.75 wt% showed less than half of the reduction in CO2 permeability than the neat PIM-1 membrane 160 days after preparation (26% for the MMM vs 58% for the purely polymeric one). © 2022 The Author(s)

Idioma: Inglés

DOI: 10.1016/j.seppur.2022.121447

Año: 2022

Publicado en: Separation and Purification Technology 298 (2022), 490703 [12 pp]
ISSN: 1383-5866

Factor impacto JCR: 8.6 (2022)

Categ. JCR: ENGINEERING, CHEMICAL rank: 12 / 141 = 0.085 (2022) - Q1 - T1

Factor impacto CITESCORE: 12.7 - Chemistry (Q1) - Chemical Engineering (Q1)

Factor impacto SCIMAGO: 1.339 - Filtration and Separation (Q1) - Analytical Chemistry (Q1)

Financiación: info:eu-repo/grantAgreement/ES/MICINN/RYC2019-027060-I

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)