High-capacity functional silsesquioxane polymers for capturing I2 and CO2 via phosphazene functionalization
Year: 2025
Type: conference-paper
Abstract: Hybrid porous polymers (PCSs) demonstrate significant efficacy in capturing gaseous radioactive iodine, attributable to their high surface area, structural stability, and tunable porosity. This study presents the development of phosphonitrile-functionalized cage-type polydisilsesquioxane (POSS)-based hybrid porous polymers. Among these, PP-1 shows a BET surface area of 468.84 m²g−1 and pore sizes of 5μm, with an iodine adsorption capacity of 4.08 g/g, exceeding most current materials. This article investigates the stability of composite materials through chemical and adsorption/desorption experiments. After three cycles of adsorption experiments, the capacity remained at 64%. The addition of POSS enhances stability and increases adsorption sites, improving iodine capture. This research provides valuable insights for designing novel iodine adsorbents.
Author: Weibao Wang
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4409504726