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A robust triphenylamine-based monolithic polymer network for selective sieving of CO2 and PM from flue gas.
Lei, Yang; Wang, Shaozhen; Jiang, Yanli; Li, Zhen; Liu, Nana; Xu, Yuan; Yu, Jiao; Cui, Mengjiao; Li, Yang; Zhao, Li.
Afiliación
  • Lei Y; College of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China. Electronic address: ly0302@mail.lzjtu.cn.
  • Wang S; College of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China.
  • Jiang Y; College of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China.
  • Li Z; College of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China.
  • Liu N; College of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China.
  • Xu Y; College of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China.
  • Yu J; College of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China.
  • Cui M; College of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China.
  • Li Y; School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China.
  • Zhao L; College of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China.
Sci Total Environ ; 946: 174463, 2024 Oct 10.
Article en En | MEDLINE | ID: mdl-38964385
ABSTRACT
The increasingly urgent issue of climate change is driving the development of carbon dioxide (CO2) capture and separation technologies in flue gas after combustion. The monolithic adsorbent stands out in practical adsorption applications for its simplified powder compaction process while maintaining the inherent balance between energy consumption for regeneration and selectivity for adsorption. However, optimizing the adsorption capacity and selectivity of CO2 separation materials remains a significant challenge. Herein, we synthesized monolithic polymer networks (N-CMPs) with triphenylamine adsorption sites, acid-base environment tolerance, and precise narrow microchannel pore systems for the selective sieving of CO2 and particulate matter (PM) in flue gas. The inherent continuous covalent bonding of N-CMPs, along with their highly delocalized π-π conjugated porous framework, ensures the stability of the monolithic polymer network's adsorption and separation capabilities under wet and acid-base conditions. Specifically, under the conditions of 1 bar at 273 K, the CO2 adsorption capacity of N-CMP-1 is 3.35 mmol/g. Attributed to the highly polar environment generated by triphenylamine and the inherent high micropore/mesopore ratio, N-CMPs exhibit an excellent ideal adsorbed solution theory (IAST) selectivity for CO2/N2 under simulated flue gas conditions (CO2/N2 = 1585). Dynamic breakthrough experiments further visualize the high separation efficiency of N-CMPs in practical adsorption applications. Moreover, under acid-base conditions, N-CMPs achieve a capture efficiency exceeding 99.76 % for PM0.3, enabling the selective separation of CO2 and PM in flue gas. In fact, the combined capture of hazardous PM and CO2 from the exhaust gases produced by the combustion of fossil fuels will play a pivotal role in mitigating climate change and environmental issues until low-carbon and alternative energy technologies are widely adopted.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Total Environ Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Total Environ Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos