Constructing Stable and Porous Covalent Organic Frameworks for Efficient Iodine Vapor Capture.
Macromol Rapid Commun
; 42(13): e2100032, 2021 Jul.
Article
en En
| MEDLINE
| ID: mdl-34050692
ABSTRACT
Covalent organic frameworks (COF) with periodic porous structures and tunable functionalities are a new class of crystalline polymers connected via strong covalent bonds. Constructing COF materials with high stability and porosity is attracting and essential for COFs' further functional exploration. In this work, two new covalent organic frameworks (TTA-TMTA-COF and TTA-FMTA-COF) with high surface area, large pore volume, and excellent chemical stability toward harsh conditions are designed and synthesized by integrating the methoxy functional groups into the networks. Both two COFs are further employed for iodine removal since radioactive iodine in nuclear waste has seriously threatened the natural environment and human health. TTA-TMTA-COF and TTA-FMTA-COF can capture 3.21 and 5.07 g g-1 iodine, respectively. Notably, the iodine capture capacity for iodine of TTA-FMTA-COF does not show any decline after being recycled five times. These results demonstrate both COFs possess ultrahigh capacity and excellent recyclability.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Neoplasias de la Tiroides
/
Estructuras Metalorgánicas
/
Yodo
Límite:
Humans
Idioma:
En
Revista:
Macromol Rapid Commun
Año:
2021
Tipo del documento:
Article