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AuthorSaleem, Haleema
AuthorSaud, Asif
AuthorMunira, Nazmin
AuthorGoh, Pei Sean
AuthorIsmail, Ahmad Fauzi
AuthorSiddiqui, Hammadur Rahman
AuthorZaidi, Syed Javaid
Available date2023-07-11T11:22:49Z
Publication Date2022-10-01
Publication NameNanomaterials
Identifierhttp://dx.doi.org/10.3390/nano12193519
CitationSaleem, H., Saud, A., Munira, N., Goh, P. S., Ismail, A. F., Siddiqui, H. R., & Zaidi, S. J. (2022). Improved forward osmosis performance of thin film composite membranes with graphene quantum dots derived from eucalyptus tree leaves. Nanomaterials, 12(19), 3519.‏
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85139751292&origin=inward
URIhttp://hdl.handle.net/10576/45372
AbstractThe major challenges in forward osmosis (FO) are low water flux, high specific reverse solute flux (SRSF), and membrane fouling. The present work addresses these problems by the incorporation of graphene quantum dots (GQDs) in the polyamide (PA) layer of thin-film composite (TFC) membranes, as well as by using an innovative polyethersulfone nanofiber support for the TFC membrane. The GQDs were prepared from eucalyptus leaves using a facile hydrothermal method that requires only deionized water, without the need for any organic solvents or reducing agents. The nanofiber support of the TFC membranes was prepared using solution blow spinning (SBS). The polyamide layer with GQDs was deposited on top of the nanofiber support through interfacial polymerization. This is the first study that reports the fouling resistance of the SBS-nanofiber-supported TFC membranes. The effect of various GQD loadings on the TFC FO membrane performance, its long-term FO testing, cleaning efficiency, and organic fouling resistance were analyzed. It was noted that the FO separation performance of the TFC membranes was improved with the incorporation of 0.05 wt.% GQDs. This study confirmed that the newly developed thin-film nanocomposite membranes demonstrated increased water flux and salt rejection, reduced SRSF, and good antifouling performance in the FO process.
SponsorThis research was jointly supported by Qatar University IRCC 2021-004 and NPRP13S-0205-200263 project. And the APC was funded by IRCC 2021-004.
Languageen
PublisherMDPI
Subjecteucalyptus trees
forward osmosis
graphene quantum dots
nanofiber membranes
solution blow spinning
TitleImproved Forward Osmosis Performance of Thin Film Composite Membranes with Graphene Quantum Dots Derived from Eucalyptus Tree Leaves
TypeArticle
Issue Number19
Volume Number12
dc.accessType Open Access


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