2024-03-28T21:55:12Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/2190862021-10-30T04:31:43Zcom_10261_31com_10261_3com_10261_240028col_10261_284col_10261_240055
DIGITAL.CSIC
author
Echaide‐Górriz, Carlos
author
Zapata, José A.
author
Etxeberria-Benavides, Miren
author
Téllez, Carlos
author
Coronas, Joaquín
funder
Ministerio de Economía y Competitividad (España)
funder
Gobierno de Aragón
funder
European Science Foundation
2020-09-03T17:54:41Z
2020-09-03T17:54:41Z
2020
Separation and Purification Technology 236: 116265 (2020)
1383-5866
http://hdl.handle.net/10261/219086
10.1016/j.seppur.2019.116265
http://dx.doi.org/10.13039/501100010067http://dx.doi.org/10.13039/501100000782http://dx.doi.org/10.13039/501100003329
A bilayered polyamide-MOF membrane was synthesized on the inner surface of a hollow fiber support (200/350 mm ID/OD). The continuous MOF layer was prepared by liquid phase crystallization, and after that a polyamide layer was formed by interfacial polymerization on the top of the MOF. Firstly, the influence of time in the crystal growth of the MOF layer (from 15 to 120 min) was studied. The main characteristics of such MOF layer were tested (gas permeance and selectivity, and layer thickness measurements by SEM) to decide which of them were the optimum to support the polyamide thin film. The final bilayered membranes were characterized by SEM imaging and XPS and their performance was established in the nanofiltration of a solution of sunset yellow (450 Da) in water. Both permeance and selectivity were improved compared to a conventional TFC membrane (without the MOF layer): water permeance from 0.06 ± 0.01 to 0.24 ± 0.09 L·m−2·h−1·bar−1, and dye rejection from 88 ± 2 to 98 ± 1%).
eng
openAccess
Polyamide interfacial polymerization
Water nanofiltration
Metal-organic framework ZIF-93
Bilayered membrane
Polyamide/MOF bilayered thin film composite hollow fiber membranes with tuned MOF thickness for water nanofiltration
artículo
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URL
https://digital.csic.es/bitstream/10261/219086/3/EchaideGorriz_SPT03_no%20marks.pdf
File
MD5
4db462f672853b317b862c246d393b17
710331
application/pdf
EchaideGorriz_SPT03_no marks.pdf