Mixed matrix membranes (MMMs) have been widely developed as an attractive solution to overcome the drawbacks found in most polymer membranes, such as permeability-selectivity trade-off and low physicochemical stability. Numerous fillers based on inorganic, organic, and hybrid materials with various structures including porous or nonporous, and two-dimensional or three-dimensional, have been used. Demanded to further improve the characteristics and performances of the MMMs, the use of dual-filler instead of a single filler has then been proposed, from which multiple effects could be obtained. This article aims to review the recent development of MMMs with dual filler and discuss their performances in diverse potential applications. Challenges in this emerging field and outlook for future research are finally provided.

中文翻译：

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双填料混合基质膜的最新进展

混合基质膜 (MMM) 作为一种有吸引力的解决方案已被广泛开发，以克服大多数聚合物膜中存在的缺点，例如渗透性-选择性权衡和低物理化学稳定性。已经使用了许多基于无机、有机和混合材料的填料，这些填料具有各种结构，包括多孔或无孔，以及二维或三维。为了进一步提高 MMM 的特性和性能，随后提出了使用双填料代替单填料，从中可以获得多种效果。本文旨在回顾具有双填料的 MMM 的最新发展，并讨论它们在各种潜在应用中的性能。最后提供了这一新兴领域的挑战和未来研究的展望。