Polymer Clay Nanocomposites for Gas Separation: A Review

Abstract

Application of polymer clay nanocomposites for carbon dioxide (CO2) removal in gas separation by using mixed matrix membranes is promising due to the advancement of nanotechnology and polymer processing. In this regard, as clay is abundantly available, cheaper and has attractive physical and chemical properties, the incorporation of these silicate layers within the polymer matrix as filler is favourable. In principle, the exfoliated clay single layers create higher tortuosity effects and may improve the separation properties of the membrane. This review presents a synopsis of the polymer clay nanocomposites development and applications as well as their potential for the removal of CO2 from gas mixtures. Details of the recent works in the development of mixed matrix membranes embedded with clay for gas separation were also discussed. In addition, the problems and mechanism to evaluate the exfoliation properties were emphasized identifying the gaps and motivates for future research works utilizing clay nanoparticles as membrane filler.

A rapid magnetic-based purification of Cd2+ and Pb2+ prior to portable electrochemical determination for grain

“…Some traditional techniques, such as atomic absorption spectroscopy (AAS) and inductively coupled plasma mass spectrometry (ICP-MS), are credible and authoritative ( Ismail et al, 2019 , Nasr et al, 2021 , Sirieva, 2020 , Voica et al, 2021 ), but they are expensive and need well-trained operators in laboratory facilities, which is not suitable for on-site and fast monitoring ( Bulbul et al, 2015 , Wang et al, 2021 ). According to the literature, electrochemical methods can overcome the aforementioned disadvantages, because they are portable, rapid, and suitable for the detection of heavy metals ( Huang et al, 2020 , Liu et al, 2014 , Rathinam et al, 2019 ).…”

The State-of-the-Art Functionalized Nanomaterials for Carbon Dioxide Separation Membrane

“…Most of the past reviews have focused on streamlining information about nanomaterial synthesis techniques, processing methods and applications. In the field of NCM for gas separation, topics that have been reviewed include viability of nanocomposite for carbon capture, oil and gas and biogas refining applications [62][63][64], the role of dimensionally different nanofillers [26,65] and the function of specific nanomaterial especially silica [66], clay [67], zeolite [68,69], carbon-based nanomaterial [25,[70][71][72] and metal organic framework (MOF) [11,56]. To date, CO 2 -separative NCM are the most comprehensively discussed material, where primary focuses have been placed on assessing the potentials of different nanomaterials [61,73], screening of nanofiller [74] and investigating the influences of nanofillers on membrane formation [75].…”

The Prospects of Clay Minerals from the Baltic States for Industrial-Scale Carbon Capture: A Review

“…This approach can significantly increase the surface area and consequently also improve the CO 2 adsorption capacity. At the same time, the exact properties of clay-polymer composite are largely affected by polymer-polymer and polymer-clay interaction, as well as clay aspect ratio, dispersion, and the alignment, all of which are highly variable characteristics among clay minerals [255][256][257].…”