Amine-functionalized mesoporous silica: A material capable of CO2 adsorption and fast regeneration by microwave heating
Nigar , Hakan (Universidad de Zaragoza) ; Garcia-Baños, B. ; Peñaranda-Foix, F. L. ; Catalá-Civera, J. M. ; Mallada Viana, María Reyes (Universidad de Zaragoza) ; Santamaría Ramiro, Jesús Marcos (Universidad de Zaragoza)
Resumen: The surface of ordered mesoporous (MCM-48) silica has been subjected to covalent grafting with silane molecules containing one to three amino groups. The dielectric properties of the materials were studied in detail, and the functionalized materials were used for CO2 adsorption at room temperature, followed by regeneration under either conventional heating or microwave irradiation. It has been found that, as the intensity of functionalization with amino groups increases (from mono- to tri-amino silanes) both the CO2 load and the dielectric response at microwave frequencies increase. In particular, functionalization with a tri-amino silane derivative gave the highest CO2 adsorption and the fastest microwave heating, resulting in a fourfold acceleration of adsorbent regeneration. The grafted material was fully stable for at least 20 adsorption-regeneration cycles, making it an ideal candidate for microwave-swing adsorption (MWSA) processes.
Idioma: Inglés
DOI: 10.1002/aic.15118
Año: 2016
Publicado en: AICHE JOURNAL 62, 2 (2016), 547-555
ISSN: 0001-1541
Financiación: info:eu-repo/grantAgreement/EUR/ERC/HECTOR Advanced Grant-267626
Financiación: info:eu-repo/grantAgreement/ES/MEC/FPU12/06864
Tipo y forma: Article (PostPrint)
Área (Departamento): Ingeniería Química (Departamento de Ingeniería Química y Tecnologías del Medio Ambiente)
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Exportado de SIDERAL (2017-01-23-14:21:23)
Idioma: Inglés
DOI: 10.1002/aic.15118
Año: 2016
Publicado en: AICHE JOURNAL 62, 2 (2016), 547-555
ISSN: 0001-1541
Financiación: info:eu-repo/grantAgreement/EUR/ERC/HECTOR Advanced Grant-267626
Financiación: info:eu-repo/grantAgreement/ES/MEC/FPU12/06864
Tipo y forma: Article (PostPrint)
Área (Departamento): Ingeniería Química (Departamento de Ingeniería Química y Tecnologías del Medio Ambiente)
0
Exportado de SIDERAL (2017-01-23-14:21:23)
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articulos > articulos-por-area > ingenieria_quimica
Notice créée le 2017-01-23, modifiée le 2017-01-24
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