Nanoporous semi-cycloaliphatic polyaminal networks for capture of SO₂, NH₃, and I₂

Abstract

Constructing nitrogen-rich nanoporous organic polymers for toxic gas and radionuclides iodine adsorption through a facile one-pot method remains challenging. In this study, two nanoporous semi-cycloaliphatic polyaminal networks (sPANs) consisting of...

Construction of a Carbazole-Based Nanoporous Organic Polymer via an AB2 Monomer for Adsorption/Separation of C1–C3 Alkanes and CO2

“…These capacities can compete with the previously reported NOPs, as shown in Figure 3(c), such as CNOPs (62.7−82.1 and 47.2− 60.0 cm 3 •g −1 ), 2 ANOPs (82.4−97.9 and 57.7−64.6 cm 3 •g −1 ), 24 PANs (43.9−119.0 and 29.1−84.2 cm 3 •g −1 ), 3,25,26 and sPIs (38.8−44.8 and 27.7−35.6 cm 3 •g −1 ). 11 Simultaneously, CNOP-5 uptake 48.1 cm 3 /g CO 2 under ambient conditions, which is higher than for sPANs (21.1−24.4 cm 3 /g), 1 PMOPs (40.7−41.5 cm 3 /g), 27 ANOP-M (40.6 cm 3 /g), 24 and 3AM2CL (13.4 cm 3 /g). 28 Higher CO 2 uptake can be attributed to high-porosity and rich-polarity carbazole units.…”

“…The design and construction of nanoporous organic polymers (NOPs) based on facile preparation is currently one of the most fascinating areas in nanomaterials and nanoscience owing to their potential applications in various fields, such as small gas adsorption and separation, − heterogeneous catalysis, water treatment, sensing, energy storage and conversion, and so on. Massive synthetic efforts have been carried out for the development of NOPs, and great successes have been achieved such as metal–catalysis coupling, , imine reactions, imide reactions, and Friedel–Crafts (F–C) alkylation. , In comparison with the other synthetic methods, F–C alkylation, which incorporates aryl units into the structure of the polymer, has been demonstrated to be a straightforward way of synthesizing NOPs.…”

Synthesis of a Carbazole-Based Nanoporous Organic Polymer for Efficient Adsorption/Separation of C2H2 and CO2

“…The specific surface area (S BET ), microporous surface area, microporous volume, and total pore volume of CNOP-6 were measured as 1334 m 2 •g −1 , 543 m 2 •g −1 , 0.23 cm 3 •g −1 , and 0.97 cm 3 •g −1 , respectively. CNOP-6 exhibited higher Brunauer− Emmett−Teller (BET) surface areas than previously reported porous polymers, such as PNOPs (729−830 m 2 •g −1 ), 19 ANOPs (1052−1272 m 2 •g −1 ), 20 sPANs (65−113 m 2 •g −1 ), 21 TpPa-F (1048 m 2 •g −1 ), 11 and NUSs (582−720 m 2 •g −1 ). 19 CNOP-6 also demonstrated competitiveness with previously reported CNOPs, including CNOP-5 (1425 m 2 •g −1 ), 15 CNOPs (1374−1546 m 2 •g −1 ), 16 CNOPs (769−1007 m 2 • g −1 ), 17 and CPOP1-V3 (1210 m 2 •g −1 ).…”

Synthesis of triphenylamine-based nanoporous organic polymers for highly efficient capture of SO2 and CO2

“…Compared to conventional absorption processes, physisorption is known to be a powerful strategy for the convenient and energy-efficient capture of SO 2 , and involves the use of various porous adsorbents, such as porous carbon, 6–11 metal–organic frameworks (MOFs), 12–21 and nanoporous organic polymers (NOPs), 22–27 which serve as major adsorbents for physisorption. Among these materials, NOPs have been regarded as promising candidates for SO 2 capture due to their wide range of reactions, high surface area, and excellent chemical and thermal stabilities.…”