ABSTRACT The capture and storage of carbon dioxide (CO 2 ) has been recognized as one of the most promising solutions to prevent climate change caused by the greenhouse effect. Membrane‐based separation has emerged as an encouraging alternative for CO 2 separation. However, the existing membrane‐based separation systems are limited by the trade‐off between permeability and selectivity. Therefore, the development of a new promising mixed matrix membrane (MMM) is needed to create a high‐performance CO 2 separation process, which is energy efficient driven and capable of overcoming the challenges of trade‐off. In this study, the casting thickness of Poly (ethylene glycol) Diacrylate (PEGDA) ranging from 100 to 250 μm was investigated. The MMMs were synthesized using PEGDA combined with functionalized multi‐walled carbon nanotubes (MWCNTs‐F) using a dry phase inversion technique. The aim was to determine the permeance and selectivity for CO 2 /Nitrogen (N 2 ) separation. A total of three MMMs were cast with MWCNTs‐F loadings of 0.05, 0.1, and 0.3 wt%. A selective MMM was successfully synthesized at an optimum casting thickness of 150 μm with a MWCNTs‐F loading of 0.1 wt%. This was attributed to a strong interaction between nanofillers and the polymer matrix, which provided sufficient interlayer spacing for CO 2 /N 2 separation.
Bryan et al. (Sun,) studied this question.