Autor según el artículo: Zare, Alireza; Perna, Lorenza; Nogalska, Adrianna; Ambrogi, Veronica; Cerruti, Pierfrancesco; Tylkowski, Bartosz; Garcia-Valls, Ricard; Giamberini, Marta

Departamento: Enginyeria Química

Autor/es de la URV: Garcia Valls, Ricard / Giamberini, Marta / Zare, Alireza

Palabras clave: Polysulfone Polyethylene imine Carbon dioxide capture Artificial stomata polyethylene imine carbon dioxide capture artificial stomata

Resumen: We investigated the possibility of improving the performance of polysulfone (PSf) membranes to be used in carbon dioxide capture devices by blending PSf with a commercial polyethylene imine, Lupasol G20, previously modified with benzoyl chloride (mG20). Additive amount ranged between 2 and 20 wt %. Membranes based on these blends were prepared by phase inversion precipitation and exhibited different morphologies with respect to neat PSf. Surface roughness, water contact angles, and water uptake increased with mG20 content. Mass transfer coefficient was also increased for both N-2 and CO2; however, this effect was more evident for carbon dioxide. Carbon dioxide absorption performance of composite membranes was evaluated for potassium hydroxide solution in a flat sheet membrane contactor (FSMC) in cross flow module at different liquid flow rates. We found that, at the lowest flow rate, membranes exhibit a very similar behaviour to neat PSf; nevertheless, significant differences can be found at higher flow rates. In particular, the membranes with 2 and 5 wt % additive behave more efficiently than neat PSf. In contrast, 10 and 20 wt % additive content has an adverse effect on CO2 capture when compared with neat PSf. In the former case, a combination of additive chemical affinity to CO2 and membrane porosity can be claimed; in the latter case, the remarkably higher wettability and water uptake could determine membrane clogging and consequent loss of efficiency in the capture device.

Áreas temáticas: Polymers and plastics Polymer science Odontología General chemistry Farmacia Engenharias ii Ciências biológicas ii Chemistry (miscellaneous) Chemistry (all) Biotecnología Astronomia / física

ISSN: 20734360

Direcció de correo del autor: ricard.garcia@urv.cat marta.giamberini@urv.cat alireza.zare@urv.cat

Identificador del autor: 0000-0002-3945-0434 0000-0001-8278-3552 0000-0002-6981-8914

Fecha de alta del registro: 2023-06-09

Versión del articulo depositado: info:eu-repo/semantics/publishedVersion

Enlace a la fuente original: https://www.mdpi.com/2073-4360/11/10/1662

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

Referencia al articulo segun fuente origial: Polymers. 11 (10):

Referencia de l'ítem segons les normes APA: Zare, Alireza; Perna, Lorenza; Nogalska, Adrianna; Ambrogi, Veronica; Cerruti, Pierfrancesco; Tylkowski, Bartosz; Garcia-Valls, Ricard; Giamberini, Ma (2019). Polymer blends for improved CO2 capture membranes. Polymers, 11(10), -. DOI: 10.3390/polym11101662

DOI del artículo: 10.3390/polym11101662

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2019

Tipo de publicación: Journal Publications