Polyamide/MOF bilayered thin film composite hollow fiber membranes with tuned MOF thickness for water nanofiltration

Carlos Echaide-Górriz; José A. Zapata; Miren Etxeberría-Benavides; Carlos Téllez; Joaquín Coronas

doi:10.1016/j.seppur.2019.116265

Polyamide/MOF bilayered thin film composite hollow fiber membranes with tuned MOF thickness for water nanofiltration

Carlos Echaide-Górriz, José A. Zapata, Miren Etxeberría-Benavides, Carlos Téllez, Joaquín Coronas^*

^*Corresponding author for this work

Membrane Technology and Intensification of Processes

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

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%).

Original language	English
Article number	116265
Journal	Separation and Purification Technology
Volume	236
DOIs	https://doi.org/10.1016/j.seppur.2019.116265
Publication status	Published - 1 Apr 2020

Funding

Financial support from the Spanish Ministry of Science, Innovation and Universities and FEDER (Fondo Europeo de Desarrollo Regional) ( MAT2016-77290-R ), the Aragón Government ( T43-17R ) and the ESF is gratefully acknowledged. C. Echaide-Górriz thanks the Aragón Government for his PhD grant. All the microscopy work was done in the Laboratorio de Microscopías Avanzadas at the Instituto de Nanociencia de Aragón (LMA-INA). The authors acknowledge the LMA-INA for offering access to their instruments and expertise. Appendix A Financial support from the Spanish Ministry of Science, Innovation and Universities and FEDER (Fondo Europeo de Desarrollo Regional) (MAT2016-77290-R), the Aragón Government (T43-17R) and the ESF is gratefully acknowledged. C. Echaide-Górriz thanks the Aragón Government for his PhD grant. All the microscopy work was done in the Laboratorio de Microscopías Avanzadas at the Instituto de Nanociencia de Aragón (LMA-INA). The authors acknowledge the LMA-INA for offering access to their instruments and expertise.

Funders	Funder number
Aragón Government
Instituto de Nanociencia de Aragón
Spanish Ministry of Science, Innovation and Universities
College of Environmental Science and Forestry, State University of New York
Ministerio de Ciencia, Innovación y Universidades
European Social Fund
European Regional Development Fund	MAT2016-77290-R
Gobierno de Aragón	T43-17R

Keywords

Bilayered membrane
Hollow fiber
Metal-organic framework ZIF-93
Polyamide interfacial polymerization
Water nanofiltration

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10.1016/j.seppur.2019.116265

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title = "Polyamide/MOF bilayered thin film composite hollow fiber membranes with tuned MOF thickness for water nanofiltration",

abstract = "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%).",

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AU - Echaide-Górriz, Carlos

AU - Zapata, José A.

AU - Etxeberría-Benavides, Miren

AU - Téllez, Carlos

AU - Coronas, Joaquín

PY - 2020/4/1

Y1 - 2020/4/1

N2 - 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%).

AB - 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%).

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Polyamide/MOF bilayered thin film composite hollow fiber membranes with tuned MOF thickness for water nanofiltration

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