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Polímeros compuestos de coordinación porosa superhidrofóbicos estables a la temperatura logrados a través de un
Koya Prabhakara Rao1,2, Masakazu Higuchi1, Jettiboina Suryachandram2
1Institute for Integrated Cell-Materials Science (iCeMS) , Kyoto University , Katsura, Nishikyo-ku, Kyoto 615-8510 , Japan.
Journal of the American Chemical Society
|October 2, 2018
Resumen
Desarrollamos nuevos polímeros superhidrófobos de coordinación porosa (PCP) utilizando metales de transición. Estos materiales muestran una excelente estabilidad térmica y adsorben selectivamente los disolventes aromáticos, lo que los hace ideales para la limpieza de derrames de petróleo.
Área de la Ciencia:
- Ciencias de los materiales
- Nanotecnología
- Química
Sus antecedentes:
- Los polímeros de coordinación porosos (PCP) son materiales avanzados con propiedades sintonizables.
- El desarrollo de materiales superhidrofóbicos estables para aplicaciones ambientales sigue siendo un desafío.
Objetivo del estudio:
- Para sintetizar nuevos polímeros porosos de coordinación superhidrofóbicos estables a altas temperaturas (PCP).
- Investigar sus propiedades de adsorción y su potencial para la remediación de derrames de petróleo.
Principales métodos:
- Síntesis de nuevo de PCP compuestos utilizando iones metálicos de transición de primera fila (Co2+, Ni2+, Zn2+).
- Caracterización de las propiedades estructurales, de adsorción y superhidrofóbicas.
- Evaluación del rendimiento en la adsorción selectiva de disolventes y la limpieza de derrames de petróleo.
Principales resultados:
- Se obtienen PCP compuestos estables a altas temperaturas con superficies superhidrofóbicas (ángulos de contacto >159°).
- Se ha demostrado la adsorción selectiva de disolventes aromáticos sobre los alifáticos.
- Capacidad de limpieza eficiente de derrames de petróleo hasta un 385% en peso.
Conclusiones:
- Los nuevos PCP compuestos ofrecen una estabilidad térmica y hídrica superior.
- Estos materiales muestran un potencial significativo para la catálisis, las tecnologías de separación y la remediación ambiental, en particular la limpieza de derrames de petróleo.
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