Dynamic Adsorption of Low-Concentration Formaldehyde Using One-Step Synthesized Amino-Functionalized Hyper-Cross-Linked Ionic Copolymers.

ABSTRACT: Formaldehyde (FA) emissions seriously influence the environment and human health, while traditional adsorbents are restricted by low capacity and poor selectivity. To address these limitations, amino-functional hyper-cross-linked copolymer ionic compounds (HPIL-Cl-Xs) were designed and synthesized through a one-step hyper-cross-linking and quaternization reaction involving benzimidazole, dichloro-p-xylene, and functional monomers. These polymers provide an ionic environment, active adsorption sites, and a microporous structure, offering abundant adsorption sites. The synthesis parameters were studied to optimize the preparation conditions. Under conditions of 8.6 ppm and WHSV of 54,000 h^-1, the equilibrium adsorption capacity of HPIL-Cl-Phe (phenylalanine) reached 11.3 mg

SUBMITTER: Jiao TT 

PROVIDER: S-EPMC12848828 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature