Robust porous polymers bearing phosphine oxide/chalcogenide ligands for volatile iodine capture

Improving iodine adsorption performance of porous organic polymers by rational decoration with nitrogen heterocycle

“…For Iodine vapor sorption, the most reported investigation were carried out generally at 70~80 C. It was indicated that levating the temperature from 90 to 160 C would accelerate the sorption rate by POSS-TPPO/S/Se but reduce the capacity. 43 Meanwhile, the almost completely evacuation of adsorbed I 2 from SBMOFs were observed at high temperature (200 C). 2 Based on above analysis, the measurement of iodine vapor was carried out at about 80 C here.…”

Multifunctional Polyhedral Oligomeric Silsesquioxane (POSS) Based Hybrid Porous Materials for CO2 Uptake and Iodine Adsorption

“…Porous organic polymers have been applied in different applications such as light harvesting, chemical sensors, catalysis, iodine uptake, H 2 production from water, water treatment, optoelectronic devices, carbon dioxide reduction, nanofiltration, enantioseparation, energy storage, gas separation, and adsorption [ 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ]. The synthesis of POPs was successfully achieved using various synthetic methods, including Friedel–Crafts arylation, Schiff base reactions, Suzuki reactions, Yamamoto reactions, Heck reactions, and Sonogashira reactions [ 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 ]. In addition, POPs can be classified into different kinds of materials, such as covalent organic frameworks (COFs), conjugated microporous polymers (CMPs), hypercrosslinked polymers (HCPs), covalent triazine-based frameworks (CTFs), metal–organic frameworks (MOFs), and polymers of intrinsic microporosity (PIMs) [ 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 ].…”

Porous MOF-808@PVDF beads for removal of iodine from gas streams

“…The concentration of iodine in nitrogen ow was generated by the mixture of iodine solid and glass beads in a temperature-tunable U-type tube. 22,23 Specically, 1 g I 2 crystals was mixed with 2 g glass beads in the U-type tube. By controlling the temperature of U-type tube and the ow rate through the U-type tube, we could get steady ows with different iodine concentrations.…”

“…It is interesting to note that the weight gain of 808-PVDF0.7 at 120 C (0.97 g g À1 ) is slightly higher than that at 80 C (0.89 g g À1 ), which can be ascribed to the evaporation of the physical-adsorbed water from the pores of the 808-PVDF0.7 framework at high temperature (120 C). 22,23,37,41 During all the dynamic adsorption tests in Fig. 6, the evacuation of physisorbed iodine was achieved by nitrogen purging with the same ow rate at the same temperature without iodine and water vapor.…”