High-performance ZnO-modified aminated poly (vinyl chloride) thin film composite membrane for amoxicillin separation via forward osmosis process

IF 6.6 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of water process engineering Pub Date : 2026-03-01 Epub Date: 2026-02-04 DOI:10.1016/j.jwpe.2026.109547

Sima Majidi , Reza Yegani , Niloofar Ranjbaran

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Abstract

This study explores the development of a novel thin-film composite (TFC) forward osmosis (FO) membrane using aminated polyvinyl chloride (APVC) modified with zinc oxide (ZnO-APVC) for increasing the membrane performance stability by enhancing an interfacial adhesion between support and active layers which causes the efficient separation of amoxicillin (AMX) from water. The FO performance of the ZnO-APVC/polyamide (PA) membrane is compared with unmodified APVC/PA and a conventional poly(ethersulfone)/polyamide (PES/PA) FO membrane. The ZnO modification increased the water permeability (A) of the APVC based TFC to 7.71 L.m⁻².h⁻¹.bar⁻¹ and enabled higher FO fluxes than that of unmodified APVC/PA under optimized FO conditions (0.6 M 1:1 NaCl–MgCl₂ draw solution), while achieving the lowest specific reverse salt flux (SRSF ≈ 0.02 g·L⁻¹). In AMX separation tests, the ZnO-APVC/PA exhibited higher water flux than PES/PA using all AMX feed concentrations, and reasonable water flux of 16.3 L·m⁻²·h⁻¹ with nearly complete AMX rejection at concentration of 150 ppm. Long-term cyclic tests during 120 h showed minimal flux decline of 2% across ZnO-APVC/PA compared with APVC/PA and PES/PA which are 4% and 10% for APVC/PA and PES/PA, respectively, demonstrating improved operational stability and confirms the enhanced interfacial adhesion between the APVC support and PA layers via covalent bonding. The results demonstrate stable FO performance during a 120 h continuous laboratory-scale operation, indicating promising initial operational stability of the ZnO-APVC/PA membrane.

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正渗透法分离阿莫西林的高性能zno改性胺化聚氯乙烯薄膜复合膜

本研究利用氧化锌修饰的胺化聚氯乙烯（APVC）（ZnO-APVC）开发一种新型薄膜复合材料（TFC）正向渗透（FO）膜，通过增强支撑层和活性层之间的界面粘附来提高膜的性能稳定性，从而使阿莫西林（AMX）从水中有效分离。比较了ZnO-APVC/聚酰胺（PA）膜与未改性APVC/PA膜和常规聚醚砜/聚酰胺（PES/PA） FO膜的FO性能。ZnO改性使APVC基TFC的透水性(A)提高到7.71 L.m−2.h−1。在优化的FO条件下（0.6 M 1:1 NaCl-MgCl 2溶液），APVC/PA的FO通量高于未改性APVC/PA，而比反盐通量最低（SRSF≈0.02 g·L−1）。在AMX分离试验中，ZnO-APVC/PA在所有AMX进料浓度下均表现出比PES/PA更高的水通量，在150ppm浓度下，水通量为16.3 L·m−2·h−1，几乎完全去除AMX。在120 h的长期循环试验中，ZnO-APVC/PA的通量最小下降了2%，而APVC/PA和PES/PA分别为4%和10%，APVC/PA和PES/PA的通量分别下降了4%和10%，证明了运行稳定性的提高，并证实了APVC载体层与PA层之间通过共价键增强的界面粘附性。实验结果表明，在120小时的连续实验中，ZnO-APVC/PA膜具有稳定的FO性能，这表明ZnO-APVC/PA膜具有良好的初始操作稳定性。

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来源期刊

Journal of water process engineering Biochemistry, Genetics and Molecular Biology-Biotechnology

CiteScore

10.70

自引率

8.60%

发文量

846

审稿时长

24 days

期刊介绍： The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies