Tailored alumina nanocomposite membranes featuring MIL-125-NH2 metal-organic frameworks for oily wastewater treatment

Umair Baig; Abdul Waheed; Lukka Thuyavan Yogarathinam; Isam H. Aljundi

doi:10.1038/s41545-024-00321-w

Tailored alumina nanocomposite membranes featuring MIL-125-NH₂ metal-organic frameworks for oily wastewater treatment

Umair Baig^*, Abdul Waheed, Lukka Thuyavan Yogarathinam, Isam H. Aljundi^*

^*Corresponding author for this work

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

15 Scopus citations

Abstract

Ceramic membranes offer significant potential for addressing challenging and harsh wastewater streams such as produced water (PW) and surfactant-stabilized oil/water (O/W) emulsions. This study focuses on developing a stable and a uniformly structured active layer solely composed of MIL-125-NH₂ MOF on a ceramic Alumina support. A stable covalent bonding approach was employed using interfacial polymerization, with isophthaloyl chloride (IPC) acting as the organic crosslinker during interfacial polymerization reaction. Three distinct MIL-125-NH₂ decorated membranes M50, M75, and M100 were prepared by using varying MOF concentrations. Surface wettability analysis of the membranes indicated that the MIL-125-NH₂ MOF active layer displayed super-hydrophilic characteristics in the air (water contact angle = 0°) and super-oleophobic characteristics underwater (oil contact angle = 161.5°). In oil separation experiments, all the MIL-125-NH₂ deposited membranes displayed >99% oil rejection. Among the fabricated membranes, M50 demonstrated the highest water flux of 2100 Lm⁻² h⁻¹ under a transmembrane pressure of 2 bar. The MIL-125-NH₂ MOF deposited membranes also showed stable performance under longer-run filtration. This study would be a simple and effective method of decorating MOFs as an active layer on ceramic support for efficient O/W emulsion separation and desalination applications.

Original language	English
Article number	26
Journal	npj Clean Water
Volume	7
Issue number	1
DOIs	https://doi.org/10.1038/s41545-024-00321-w
State	Published - Dec 2024

Bibliographical note

Publisher Copyright:
© The Author(s) 2024.

ASJC Scopus subject areas

Water Science and Technology
Waste Management and Disposal
Pollution
Management, Monitoring, Policy and Law

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1038/s41545-024-00321-w

Cite this

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title = "Tailored alumina nanocomposite membranes featuring MIL-125-NH2 metal-organic frameworks for oily wastewater treatment",

abstract = "Ceramic membranes offer significant potential for addressing challenging and harsh wastewater streams such as produced water (PW) and surfactant-stabilized oil/water (O/W) emulsions. This study focuses on developing a stable and a uniformly structured active layer solely composed of MIL-125-NH2 MOF on a ceramic Alumina support. A stable covalent bonding approach was employed using interfacial polymerization, with isophthaloyl chloride (IPC) acting as the organic crosslinker during interfacial polymerization reaction. Three distinct MIL-125-NH2 decorated membranes M50, M75, and M100 were prepared by using varying MOF concentrations. Surface wettability analysis of the membranes indicated that the MIL-125-NH2 MOF active layer displayed super-hydrophilic characteristics in the air (water contact angle = 0°) and super-oleophobic characteristics underwater (oil contact angle = 161.5°). In oil separation experiments, all the MIL-125-NH2 deposited membranes displayed >99\% oil rejection. Among the fabricated membranes, M50 demonstrated the highest water flux of 2100 Lm−2 h−1 under a transmembrane pressure of 2 bar. The MIL-125-NH2 MOF deposited membranes also showed stable performance under longer-run filtration. This study would be a simple and effective method of decorating MOFs as an active layer on ceramic support for efficient O/W emulsion separation and desalination applications.",

author = "Umair Baig and Abdul Waheed and Yogarathinam, \{Lukka Thuyavan\} and Aljundi, \{Isam H.\}",

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AU - Aljundi, Isam H.

PY - 2024/12

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AB - Ceramic membranes offer significant potential for addressing challenging and harsh wastewater streams such as produced water (PW) and surfactant-stabilized oil/water (O/W) emulsions. This study focuses on developing a stable and a uniformly structured active layer solely composed of MIL-125-NH2 MOF on a ceramic Alumina support. A stable covalent bonding approach was employed using interfacial polymerization, with isophthaloyl chloride (IPC) acting as the organic crosslinker during interfacial polymerization reaction. Three distinct MIL-125-NH2 decorated membranes M50, M75, and M100 were prepared by using varying MOF concentrations. Surface wettability analysis of the membranes indicated that the MIL-125-NH2 MOF active layer displayed super-hydrophilic characteristics in the air (water contact angle = 0°) and super-oleophobic characteristics underwater (oil contact angle = 161.5°). In oil separation experiments, all the MIL-125-NH2 deposited membranes displayed >99% oil rejection. Among the fabricated membranes, M50 demonstrated the highest water flux of 2100 Lm−2 h−1 under a transmembrane pressure of 2 bar. The MIL-125-NH2 MOF deposited membranes also showed stable performance under longer-run filtration. This study would be a simple and effective method of decorating MOFs as an active layer on ceramic support for efficient O/W emulsion separation and desalination applications.

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