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Un marco orgánico covalente de dos dimensiones y nanoporo altamente ordenado con poros modificables, y su aplicación

Valerie A Kuehl, Jiashi Yin, Phuoc H H Duong

¹Central Instrument Facility , Colorado State University , Fort Collins , Colorado 80523 , United States.

Journal of the American Chemical Society

|December 5, 2018

Resumen

Los investigadores desarrollaron nuevas membranas de polímero nanoporosas. Estos marcos orgánicos covalentes (COF) ofrecen una alta selectividad para el tamaño y la carga, mejorando las tecnologías de purificación de energía y agua.

Área de la Ciencia:

Ciencias de los materiales
Nanotecnología
Ingeniería Química

Sus antecedentes:

La tecnología de membranas es crucial para el suministro de energía y la producción de agua limpia.
La alta selectividad basada en el tamaño y la carga es clave para procesos de separación eficientes.
El desarrollo de materiales avanzados para membranas sigue siendo un desafío importante.

Objetivo del estudio:

Desarrollar un protocolo sintético flexible para crear materiales poliméricos nanoporosos bidimensionales altamente ordenados.
Para funcionalizar estos materiales, denominados marcos orgánicos covalentes (COF), con propiedades químicas específicas.
Fabricar y probar membranas hechas de estos nuevos COF para aplicaciones de separación.

Principales métodos:

Se empleó un protocolo sintético flexible para crear materiales poliméricos nanoporosos (COF) bidimensionales.
Los grupos funcionales, específicamente los grupos carboxilo, se incorporaron dentro de los nanoporos.
Las membranas se fabricaron utilizando estos COF carboxilados para la evaluación del rendimiento.

Principales resultados:

Los COF sintetizados forman estructuras nanoporosas bidimensionales altamente ordenadas.
Las membranas fabricadas a partir de estos COF carboxilados presentan una alta permeabilidad al agua.
Estas membranas demuestran una selectividad significativa basada en la carga y el tamaño.

Conclusiones:

Se ha establecido un método versátil para sintetizar COF funcionalizados.
Las membranas de COF carboxiladas son prometedoras para tecnologías de separación eficientes.
Estas membranas avanzadas podrían impactar significativamente la purificación de energía y agua.

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