Boosting pervaporation performance by promoting organic permeability and simultaneously inhibiting water transport via blending PDMS with COF-300

Emerging Functional Porous Polymeric and Carbonaceous Materials for Environmental Treatment and Energy Storage

“…Desalination, OSN, and pervaporation which concern about salt rejection, organic solvent separation, and multicomponent liquid mixture separation will be listed as individual subsections in this section. Composites membranes such as mix matrix membranes (MMMs) [226][227][228] and thin film composites (TFC) [229][230][231] are major existing forms of the membranes, and defect-free freestanding film has also been explored. The main parameters for functional porous polymer-derived separation membranes, including the substrate membrane, preparation method, membrane thickness, permeance and rejection rates, are summarized in Table 3, which involves aqueous organic pollutants filtration, desalination, and OSN to provide an overall comparison of the membrane methodology.…”

“…The resulting mixed matrix membranes exhibited stronger hydrophobicity, higher n ‐butanol/water sorption selectivity and pervaporation selectivity than mixed matrix membranes prepared by conventional blending . Qin and co‐workers changed the polymer matrix with PDMS and constructed mixed matrix membranes with COF‐300 for the selective permeation of multiple organics including aniline, butanol, ethanol, and phenol while reducing water transport at the same time . The high organic affinity with the tendency of forming hydrogen bonds enabled COF‐300 to promote organic transport and restricted water diffusion by strong hydrogen bonding.…”

Dimensional Nanofillers in Mixed Matrix Membranes for Pervaporation Separations: A Review

“…A summary of some typical nanofillers used in this respect are shown in Table 4 . For instance, Qin and coworkers enabled both increments in organic transport and the selectivity of furfural over water in PDMS based MMM via doping porous nanofillers (COF-300) that have ultrahigh affinity with the organic solvent [ 143 ]. The presence of hydrophilic amino and aldehyde groups in the pore channels of COF-300 formed hydrogen bonding interaction sites, which effectively impeded water transport.…”

Fabrication of zeolitic imidazolate frameworks based mixed matrix membranes and mass transfer properties of C4H6 and N2 in membrane separation

“…Membrane‐based technology is one of the best possible solutions for complete VOC recovery due to its ease of operation, small footprint, low energy usage, easily scale up production, and more significantly, it offers the ability to meet future stricter environmental limits 4 . In the recent works, MMMs showed good achievements in many applications such as water separation, flue gas purification, petrochemical separation, and natural gas separation 5‐9 . The synthesis of mixed matrix membranes (MMMs) is the most promising approach for combining both organic and inorganic material properties at the same time, which also improves gas transport properties and may surpass the Robeson upper bound limit 4,10 .…”

“…4 In the recent works, MMMs showed good achievements in many applications such as water separation, flue gas purification, petrochemical separation, and natural gas separation. [5][6][7][8][9] The synthesis of mixed matrix membranes (MMMs) is the most promising approach for combining both organic and inorganic material properties at the same time, which also improves gas transport properties and may surpass the Robeson upper bound limit. 4,10 It involves the fabrication of composite membranes between polymeric materials as a base, and inorganic material as a filler.…”