Abstract

The escalating presence of microplastics (MPs) in wastewater necessitates the investigation of effective tertiary treatment process. Forward osmosis (FO) emerges as an effective non-pressurized membrane process, however, for the effective implementation of FO systems, the development of fouling-resistance FO membranes with high-performance is essential. This study focuses on the integration of MWCNT/UiO-66-NH2 as metal-organic frameworks (MOFs) and multi-wall carbon nanotubes (MWCNT) nanocomposites in thin film composite (TFC) FO membranes, harnessing the synergistic power of hybrid nanoparticles in FO membranes. The results showed that the addition of MWCNT/UiO-66-NH2 in the aqueous phase during polyamide formation changed the polyamide surface structure, and enhanced membranes’ hydrophilicity by 44%. The water flux of the modified FO membrane incorporated with 0.1 wt% MWCNTs/UiO-66-NH2 increased by 67% and the reverse salt flux decreased by 22% as in comparison with the control membrane. Moreover, the modified membrane showed improved antifouling behavior against both organic foulant and MPs. The MWCNT/UiO-66-NH2 membrane experienced 35% flux decline while the control membrane experienced 65% flux decline. This proves that the integration of MWCNT/UiO-66-NH2 nanoparticles into TFC FO membranes is a viable approach in creating advanced FO membranes with high antifouling propensity with potential to be expanded further to other membrane applications.

Keywords

[RSTDPub], Forward osmosis, Fouling, Metal-organic frameworks, Microplastics, Multi-walled carbon nanotubes

Document Type

Journal Article

Date of Publication

7-1-2024

Volume

359

PubMed ID

38679179

Publication Title

Chemosphere

Publisher

Elsevier

School

School of Engineering

Funders

Edith Cowan University

Grant Number

G1005399

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Comments

This is an Authors Accepted Manuscript version of an article published by Elsevier in Chemosphere. The published version is available at: https://doi.org/10.1016/j.chemosphere.2024.142180

Golgoli, M., Farahbakhsh, J., Najafi, M., Khiadani, M., Johns, M. L., & Zargar, M. (2024). Resilient forward osmosis membranes against microplastics fouling enhanced by MWCNTs/UiO-66-NH2 hybrid nanoparticles. Chemosphere, 359, 142180. https://doi.org/10.1016/j.chemosphere.2024.142180

Available for download on Monday, June 01, 2026

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Link to publisher version (DOI)

10.1016/j.chemosphere.2024.142180