Mixed-matrix membranes recent progress

Up to now, a variety of non-zeolite/polymer mixed-matrix membranes have been developed comprising either nonporous or porous non-zeolitic materials as the dispersed phase in the continuous polymer phase. For example, non-porous and porous silica nanoparticles, alumina, activated carbon, poly(ethylene glycol) impregnated activated carbon, carbon molecular sieves, Ti02 nanoparticles, layered materials, metal-organic frameworks and mesoporous molecular sieves have been studied as the dispersed non-zeolitic materials in the mixed-matrix membranes in the literature [23-35]. This chapter does not focus on these non-zeoUte/polymer mixed-matrix membranes. Instead we describe recent progress in molecular sieve/ polymer mixed-matrix membranes, as much of the research conducted to date on mixed-matrix membranes has focused on the combination of a dispersed zeolite phase with an easily processed continuous polymer matrix. The molecular sieve/ polymer mixed-matrix membranes covered in this chapter include zeolite/polymer and non-zeolitic molecular sieve/polymer mixed-matrix membranes, such as alu-minophosphate molecular sieve (AlPO)/polymer and silicoaluminophosphate molecular sieve (SAPO)/polymer mixed-matrix membranes. 

Excluding polymer and mixed matrix membranes with low permeances and reduced thermal, mechanical, and chemical stability, PIMs constitute the most extended family of materials for low-temperature CO2 capture. In turn, PIMs can be classified into three different subfamihes (1) silicas, (2) zeohtes, and (3) MOFs. We have summarized in a previous review the recent progress in the synthesis of PIMs and their potential for CO2 capture in pre- and post-combustion applications with a critical appraisal of adsorption and diffusion mechanisms for... 

Chapter 8 summarizes the recent progresses in other carbon related membranes. The central issue of this chapter is carbon nano-tubes membranes and mix matrix membranes in which caibon nano-tubes are incorporated. 

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