Paramagnetic ionic liquid-coated SiO2@Fe3O4 nanoparticles - The next generation of magnetically recoverable nanocatalysts applied in the glycolysis of PET

The functionalization of silica-coated, magnetic Fe3O4 nanoparticles, with an iron-containing ionic liquid, allows for the synthesis of a Fe3O4@SiO2@(mim)[FeCl4] system that can be employed as a magnetically recoverable nanocatalyst. Herein, we present the use of Fe3O4@SiO2@(mim)[FeCl4] for the glyc...

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Detalles Bibliográficos
Autores: Cano Rico, Israel, Martín Gandul, María del Carmen, Alves Fernandes, Jesum, Lodge, Rhys W., Dupont, Jairton, Casado-Carmona, Francisco A., Lucena, Rafael, Cardenas, Soledad, Sans, Victor, Pedro del Valle, Imanol de|||0000-0002-5581-2220
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/20829
Acceso en línea:http://hdl.handle.net/10902/20829
Access Level:acceso abierto
Palabra clave:Bifunctional catalyst
Bis(2-hydroxyethyl)terephthalate
Glycolysis
Imidazolium-based iron-containing ionic liquid
Poly(ethylene terephthalate)
Magnetic nanoparticles
Descripción
Sumario:The functionalization of silica-coated, magnetic Fe3O4 nanoparticles, with an iron-containing ionic liquid, allows for the synthesis of a Fe3O4@SiO2@(mim)[FeCl4] system that can be employed as a magnetically recoverable nanocatalyst. Herein, we present the use of Fe3O4@SiO2@(mim)[FeCl4] for the glycolysis of PET into BHET under conventional heating. The catalyst achieved nearly 100% yield and selectivity over twelve consecutive reaction cycles at 180 °C and was efficiently recovered without tedious work-up or purification processes. Additional analyses revealed that the amount of catalyst lost after each cycle was negligible and no trace of Fe was found in the purified BHET product.

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