Photo-switchable smart metal–organic framework membranes with tunable and enhanced molecular sieving performance

Abstract

A novel photo-switchable Cu(AzDC)(4,4′-BPE)0.5 membrane was developed with the H2/CO2 separation factor being switched reversibly between 21.3 and 43.7 after irradiation with Vis light (455 nm) and UV (365 nm).

Synthesis of Co3O4/Carbon Heteroaerogels with Ultrahigh Capacitance via Polyethyleneimine Intercalation of Co2BIM4 Nanosheets

“…The capacitance performance of the Co 2 BIM 4 ‐Co 3 O 4 /NC electrode are also much higher than the electrodes based on MOF or MOF‐derived oxides and oxides/carbon (Table S1), such as Ni‐MOF (1127 F g −1/ 0.5 A g −1 ), [15] Ni‐MOF‐based NiO (116 F g −1 /1 A g −1 ), [39] Ni‐MOF‐derived Ni 2 P@C (1676 F g −1 /1 A g −1 ), [40] Co‐MOF‐derived PC/Co 3 O 4 (423 F g −1 /1 A g −1 ), [41] Co‐MOF‐derived Co 9 S 8 /NS‐C (734 F g −1 /1 A g −1 ), [42] ZIF‐9@polyaniline (710 F g −1 /1 A g −1 ), [43] ZIF‐67@Mn‐ZIF‐derived Co 3 O 4 @MnO 2 (413 F g −1 /0.5 A g −1 ) [44] . The capacitance performance of the Co 2 BIM 4 ‐Co 3 O 4 /NC electrode should be ascribed to the synergistic effects.…”

“…A variety of metal coordination and reasonable design of organic ligands enable MOF to have regular arrangement of pores and adjustable pore sizes [11, 12] . These unique functions give MOF great potential in various applications, such as gas storage, separation, catalysis, sensor [13–15] . Further, MOFs are widely used as precursors to prepare outstanding carbonaceous electrode materials for energy storage since the porosity and structure of derived carbonaceous materials can be adjusted by controlling the structure of MOFs and calcination conditions [16] .…”

“…[11,12] These unique functions give MOF great potential in various applications,s uch as gas storage, separation, catalysis, sensor. [13][14][15] Further,M OFs are widely used as precursors to prepareo utstanding carbonaceous electrode materials for energy storage since the porosity ands tructure of derived carbonaceous materials can be adjusted by controlling the structure of MOFs and calcination conditions. [16] Specifically, two-dimensional (2D) MOF nanosheets, which are stacked by metal centers and organic ligandsm onolayers via coordination chemicalb ond force, are easy to be intercalated with foreign molecules.…”

Polymer Composite Membrane with Penetrating ZIF‐7 Sheets Displays High Hydrogen Permselectivity

“…In comparison with conventional separation technologies like distillation and adsorption, membrane‐based separation has been recognized as a promising alternative due to its lower energy consumption and cost effectiveness . In the past 30 years, many molecular sieve membranes, such as zeolite membranes, carbon membranes, silica membranes, and metal–organic framework (MOF) membranes have been developed for the separation of gaseous or liquid mixtures based on differences in the selective adsorption or molecular size. In particular, MOF membranes have attracted intense interest because of their highly diverse structures and pore sizes, specific adsorption affinities, and facile activation.…”

Polidopamin alkalmazása a szerves kémiában: katalizátor hordozótól a fotoizomerizálható felületekig

“…Ahhoz, hogy megszabaduljunk a fotokapcsolók oldatfázisban jelentkező, rendezetlen Brown-mozgásától, és ezzel ne csak az egyes molekulák izomerizációs képességét tudjuk kihasználni, hanem az együttes, egyirányú mozgásukból adódó lehetőségeket, valamilyen határfelületen kell rögzítenünk a kapcsolóinkat. [98] Egyre növekvő számú publikáció jelenik meg felületen rögzített fotokapcsolókkal megvalósított nedvesedő képesség-kontrollról, [99][100][101][102][103] hatóanyag szállításról, [104][105][106] molekuláris gépezetek előállításáról, [107][108][109][110][111][112] valamint felületi mintázat befolyásolásáról. [113][114][115] Molekulák monomolekulás rétegbe rendezésére leggyakrabban arany felületet használnak, melyhez tiol, vagy amin funkció segítségével rögzíthetők molekulák.…”