Qian, Junfeng; Wu, Tingting; Shi, Jianqun; Chang, Hao; Liu, Donghui; Pan, Yichang published an article in 2021. The article was titled 《Improved CO2/CH4 separation performance of mixed-matrix membrane by adding ZIF-7-NH2 nanocrystals》, and you may find the article in Journal of Applied Polymer Science.Electric Literature of C7H7N3 The information in the text is summarized as follows:
Membrane-based technol. is an attractive alternative in terms of CO2 separation Pebax-based membranes are regarded as potential candidates for CO2 separation due to the favorable interaction between its poly(ethylene oxide) chains with CO2 mols. and inorganic fillers. However, the separation performance for CO2/CH4 mixture is still suffered from the moderate gas permeability and selectivity. To overcome this problem, in this work, amino-functionalized zeolite imidazolate framework (ZIF-7-NH2) nanocrystals were used as fillers to blend with Pebax 1657 for fabricating mixed-matrix membranes (MMMs). XRD, Brunauer-Emmett-Teller (BET), scanning electron microscope, and 1H NMR characterization indicated that ZIF-7-NH2 with the highest crystallinity was synthesized. Fourier transform IR spectroscopy, thermogravimetric anal., differential scanning calorimetry (DSC), and Young’s modulus showed that it has good interfacial interaction. Gas separation test results showed that both the CO2 permeability and CO2/CH4 selectivity of the 31 wt% ZIF-7-NH2/Pebax MMMs increased by 80 and 170%, resp. The improved performance is attributed to the addition of ZIF-7-NH2 nanocrystals and the favorable interfacial interactions between the polymer and ZIF-7-NH2 nanocrystals. Furthermore, the polyvinylidene fluoride supported hollow fiber composite membranes also exhibit the long-term stability for CO2/CH4 separation In addition to this study using 1H-Benzo[d]imidazol-2-amine, there are many other studies that have used 1H-Benzo[d]imidazol-2-amine(cas: 934-32-7Electric Literature of C7H7N3) was used in this study.
1H-Benzo[d]imidazol-2-amine(cas: 934-32-7) can be used in the hydrolysis of a choline carbonate. It was also used in the synthesis of imidazo[1,2-a]benzimidazoles.Electric Literature of C7H7N3
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem