Investigations on the effect of halloysite nanotubes loading on the physicochemical properties of cellulose acetate/polysulfone asymmetric membrane

Nurul Ain Arjuna and Noor Maizura Ismail and S. M. Anisuzzaman and Rachel Fran Mansa and Murni Sundang and Akhtar Razul Razali (2025) Investigations on the effect of halloysite nanotubes loading on the physicochemical properties of cellulose acetate/polysulfone asymmetric membrane. Express Polymer Letters, 19 (4). pp. 441-454. ISSN 1788-618X

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Abstract

Membrane-based gas separation offers practical advantages for hydrogen (H2) and carbon dioxide (CO2) separation for steam methane reforming units. Modification of membrane materials can optimize membrane performance. In this study, the central focus is on investigating the effect of different loadings of halloysite nanotubes (HNTs) (0, 0.5, 1.0, 1.5, and 2.0 wt%) incorporated into a blend of cellulose acetate (CA) and polysulfone (PSF) polymers with the aim of improving the membrane properties. The Fourier transform infrared spectroscopy-attenuated total reflectance (FTIR-ATR) results confirmed that the primary functional groups of PSF and CA remained intact upon HNTs incorporation, with no distinct HNT peaks altering the main chemical functionalities. Field emission scanning electron microscopy-energy dispersive X-ray spectroscopy (FESEM-EDX) analyses showed that low concentrations of HNTs (0.5 wt%) improved surface smoothness and reduced macrovoids, beneficial for gas separation. Cross-sectional images of FESEM micrographs showed no evidence of obvious agglomeration, suggesting a good dispersion of HNTs. From the X-ray diffraction (XRD) analysis, all the membrane samples retained an amorphous structure, indicating that the incorporation of HNT has less effect on the polymer chain properties of the membranes.

Item Type:	Article
Keyword:	Membrane, Nanocomposite, Halloysite, Clay, Nanoparticle
Subjects:	Q Science > QD Chemistry > QD1-999 Chemistry > QD241-441 Organic chemistry T Technology > TP Chemical technology > TP1-1185 Chemical technology > TP155-156 Chemical engineering
Department:	FACULTY > Faculty of Engineering
Depositing User:	SITI AZIZAH BINTI IDRIS -
Date Deposited:	03 Jul 2025 10:20
Last Modified:	03 Jul 2025 10:20
URI:	https://eprints.ums.edu.my/id/eprint/44275

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