2021
DOI: 10.1002/chem.202102399
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Imidazolium‐Functionalized Chemically Robust Ionic Porous Organic Polymers (iPOPs) toward Toxic Oxo‐Pollutants Capture from Water

Abstract: Fabricating new and efficient materials aimed at containment of water contamination, in particular removing toxic heavy metal based oxo-anions (e. g. CrO 42À , TcO 4 À ) holds paramount importance. In this work, we report two new highly stable imidazolium based ionic porous organic polymers (iPOPs) decorated with multiple interaction sites along with electrostatics driven adsorptive removal of such oxoanions from water. Both the iPOPs (namely, iPOP-3 and iPOP-4) exhibited rapid sieving kinetics and very high s… Show more

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Cited by 43 publications
(28 citation statements)
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“…S6, ESI †). The PXRD data showed the amorphous nature, which is very common for this type of ionic polymeric material 72,74 (Fig. S7, ESI †), and it was further confirmed by the electron diffraction…”
Section: Resultsmentioning
confidence: 59%
See 1 more Smart Citation
“…S6, ESI †). The PXRD data showed the amorphous nature, which is very common for this type of ionic polymeric material 72,74 (Fig. S7, ESI †), and it was further confirmed by the electron diffraction…”
Section: Resultsmentioning
confidence: 59%
“…[65][66][67][68] In recent years, a series of iPOPs have been synthesized and their application in various fields has been explored. 69 To achieve anion capture using iPOP, a stable cationic skeleton with exchangeable counter anions is the primary requirement, [70][71][72][73][74][75][76][77][78][79][80] whereas the presence of an electron-rich building block in the polymeric skeleton [81][82][83] and accumulation of a large number of N atoms in the material helps in increasing the photocatalytic performance. 82,84 Strategic incorporation of different binding sites into the polymeric network and the electron-rich moiety might contribute towards the selective capture of anionic pollutants and enhance the material's photocatalytic performance.…”
Section: Introductionmentioning
confidence: 99%
“…Similarly, the adsorption capacities of CON-LDU4 and CON-LDU5-SiO 2 for CrO 4 2– were calculated as 222 and 129 mg g –1 , respectively (Figure S10), indicating the better accessibility of CON-LDU5 . As illustrated in Figure d, the capacity of CON-LDU5 surpasses those of most other comparable adsorbents. ,, Additionally, the adsorption efficiency of CON-LDU5 at the low concentrations of CrO 4 2– aqueous solutions was evaluated. As shown in Figure S13, the adsorption percentages are nearly 100% when the K 2 CrO 4 aqueous solutions were used with concentrations of 100, 50, and 10 ppm, revealing CON-LDU5 is an effective adsorbent.…”
Section: Resultsmentioning
confidence: 99%
“…[37][38][39] The intrinsic porous structure and good guest binding properties could enable the access of water molecules to the chromophores; in addition to this, high stability and easy processability of the framework account for their reusability as chemosensor materials. MOF-based luminescent chemosensors have also attracted immense research interest in the detection of trace amounts of cationic [6][7][8]40 and anionic [41][42][43][44][45][46][47][48][49][50][51] contaminant analytes. The excellent structural tunability of these systems enables the incorporation of Lewis acidic/basic sites into the framework, which can essentially bind to the analytes.…”
Section: Introductionmentioning
confidence: 99%