ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Novel mixed matrix membranes based on polyethersulfone and MIL-96 (Al) for CO₂ gas separation

Witri Wahyu Lestari, Moh Ali Khafidhin, Rika Wijiyanti, Nurul Widiastuti, Desi Suci Handayani, Ubed Sonai Fahruddin Arrozi, and Grandprix T. M. Kadja

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sebelas Maret, Kentingan-Jebres Surakarta, Indonesia

E-mail: witri@mipa.uns.ac.id

Received: 18 June 2020  Accepted: 6 February 2021

Abstract:

Novel mixed matrix membranes (MMMs) based on polyethersulfone (PES) and [Al₁₂O(OH)₁₈ (H₂O)₃(btc)₆] (btc: benzene-1,3,5-tricarboxylic acid), also known as Material of Institute Lavoisier (MIL)-96 (Al), fillers were successfully prepared using a conventional printing method with the wet phase inversion technique. Membranes for gas separation were successfully prepared using PES 35% w/w in N,N′-dimethylacetamide (DMAc).Variations in percent addition of fillers included 5%, 10%, 20%, and 30% w/w to observe gas separation performance. The produced PES/MIL-96 (Al) MMMs did not show any chemical interactions based on fourier transform infrared analysis. The fabricated membrane has a finger-like structure, as demonstrated by scanning electron microscopy images. Gas separation performance in MMMs was observed in N₂, O₂, and CO₂ gases. Membrane permeability showed an increase as the number of fillers was increased. The optimum selectivity of the membranes for the separation of CO₂/N₂ and CO₂/O₂ gases was achieved with the addition of 20% fillers with increases of 155% and 86%, respectively, compared to pure PES membranes. Agglomeration was observed with the addition of 30% particle filler to the membranes, which resulted in decreased membrane selectivity.

Graphical abstract

Keywords: Matrix membranes; MIL-96 (al); Polyethersulfone; DMAc; CO2 separation

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-021-01562-6

Chemical Papers 75 (7) 3337–3351 (2021)