Feasibility of preparing functionalize Y2O3 ceramic membrane with fluorinated polymers via UV photopolymerization for vapor transport application

Nur Zhatul Shima Yahaya and Intan Nuralisa Mad Dali and Noor Fadilah Yusof and Mohamad Zahir Mohamad Pauzi and Amirul Afiat Raffi and Norfazliana Abdullah and Khairul Hamimah Abas and Mohd Hafiz Dzarfan Othman and Juhana Jaafar and Mukhlis Abdul Rahman (2025) Feasibility of preparing functionalize Y2O3 ceramic membrane with fluorinated polymers via UV photopolymerization for vapor transport application. Journal of Environmental Chemical Engineering, 13. pp. 1-22. ISSN 2213-3437

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Abstract

Functionalization through hydrophobic group incorporation has been widely acknowledged for preparation of advanced ceramic membrane. However, current popular method such as silane grafting was still complicated, produced unstable coating and high possibility of leaching into the environment. Hence, this work presented an alternative functionalization via UV photopolymerization where the process is facile and employed readily available fluorinated polymers; polyvinylidene fluoride (PVDF) and UV curable resin (UCR). Tuning the oxygen vacancy defect by inserting F- ion into O2− ion position in the metal oxide structure improved the membrane overall properties by forming a uniform, smooth, thin layer and well-coated active layer as shown by sample Y-1450-U-LOW. In comparison to silane grafting, the polymer coating layer in this study is chemically bonded to the metal oxide structure where it forms a strong and stabilized composite layer membrane consisting of Y-F bond at the interface. The success of this functionalization is further proven by the high membrane distillation performance as the NaCl rejection increased from 30.70 % to 99.99 % with permeate flux value of 5.66 L/m2.h. Adjustment in the feed NaCl temperature from 25 °C to 60 °C created more pathway for vapor transport, allowing the best membrane (Y-1450-U-LOW) to reach highest permeate flux value (29.40 L/m2∙h) so far in the literature. The stabilized active layer consists of the Y-F bond further sustaining the NaCl rejection at 99 %.

Item Type:	Article
Keyword:	Hydrophobic ceramic membrane, Y2O3, Fluorinated polymer, UV photopolymerization, Membrane distillation
Subjects:	Q Science > QD Chemistry > QD1-999 Chemistry > QD450-801 Physical and theoretical chemistry > QD701-731 Photochemistry T Technology > TP Chemical technology > TP1-1185 Chemical technology > TP248.13-248.65 Biotechnology
Department:	FACULTY > Faculty of Engineering
Depositing User:	JUNAINE JASNI -
Date Deposited:	13 Oct 2025 15:53
Last Modified:	13 Oct 2025 15:53
URI:	https://eprints.ums.edu.my/id/eprint/45434

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