Environmentally friendly approach for the fabrication of polyamide thin film nanocomposite membrane with enhanced antifouling and antibacterial properties

Khoo, Ying Siew; Seah, Mei Qun; Lau, Woei Jye; Liang, Yanyan; Karaman, Mustafa; Gürsoy, Mehmet; Meng, Jianqiang; Gao, Haijun; Ismail, Ahmad Fauzi

doi:10.1016/j.seppur.2020.118249

Cited by 27 publications

(12 citation statements)

References 48 publications

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“…Nevertheless, an excessive loading of TiO 2 nanotubes higher than 0.01 wt% increased the thickness of the polyamide selective layer, which imposed additional mass-transfer resistance, hence reducing the water permeability. Khoo et al prepared a TNT-incorporated NF membrane for desalination [ 128 ]. Prior to the incorporation, the TiO 2 nanotubes were modified with methyl methacrylate to improve their dispersion in the polyamide matrix.…”

Section: Liquid Separation Membranes With Multidimensional Tio ...mentioning

confidence: 99%

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Modification of Liquid Separation Membranes Using Multidimensional Nanomaterials: Revealing the Roles of Dimension Based on Classical Titanium Dioxide

et al. 2023

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Membrane technology has become increasingly popular and important for separation processes in industries, as well as for desalination and wastewater treatment. Over the last decade, the merger of nanotechnology and membrane technology in the development of nanocomposite membranes has emerged as a rapidly expanding research area. The key motivation driving the development of nanocomposite membranes is the pursuit of high-performance liquid separation membranes that can address the bottlenecks of conventionally used polymeric membranes. Nanostructured materials in the form of zero to three-dimensions exhibit unique dimension-dependent morphology and topology that have triggered considerable attention in various fields. While the surface hydrophilicity, antibacterial, and photocatalytic properties of TiO2 are particularly attractive for liquid separation membranes, the geometry-dependent properties of the nanocomposite membrane can be further fine-tuned by selecting the nanostructures with the right dimension. This review aims to provide an overview and comments on the state-of-the-art modifications of liquid separation membrane using TiO2 as a classical example of multidimensional nanomaterials. The performances of TiO2-incorporated nanocomposite membranes are discussed with attention placed on the special features rendered by their structures and dimensions. The innovations and breakthroughs made in the synthesis and modifications of structure-controlled TiO2 and its composites have enabled fascinating and advantageous properties for the development of high-performance nanocomposite membranes for liquid separation.

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Section: Liquid Separation Membranes With Multidimensional Tio ...mentioning

confidence: 99%

“… ( a ) Schematic illustration of surface hydroxyl groups and nanochannels created by TiO 2 nanotubes in a polyamide layer of an RO TFC membrane [ 127 ], ( b ) bacterial inhibition efficiency of neat and nanocomposite TFC membrane against E. coli and S. aureus [ 128 ]. Reprinted with permission.…”

Section: Figurementioning

confidence: 99%

Modification of Liquid Separation Membranes Using Multidimensional Nanomaterials: Revealing the Roles of Dimension Based on Classical Titanium Dioxide

et al. 2023

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“…The TFC membrane with TNT incorporated as nanofiller has a great propensity to enhance the flux and antifouling properties. Khoo et al reported the preparation of TNT incorporated nanofiltration membrane that can enhance water flux by 16% without compromising NaCl rejection [ 23 ]. The TFN membrane also showed a high flux recovery rate of 85.77%.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Removal of Endocrine-Disrupting Compounds from Wastewater Using Reverse Osmosis Membrane with Titania Nanotube-Constructed Nanochannels

et al. 2022

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This paper presents a comprehensive study of the performance of a newly developed titania nanotube incorporated RO membrane for endocrine-disrupting compound (EDC) removal at a low concentration. EDCs are known as an emerging contaminant, and if these pollutants are not properly removed, they can enter the water cycle and reach the water supply for residential use, causing harm to human health. Reverse osmosis (RO) has been known as a promising technology to remove EDCs. However, there is a lack of consensus on their performance, especially on the feed concentrations of EDC that vary from one source to another. In this study, polyamide thin-film composite (PA TFC) membrane was incorporated with one-dimensional titania nanotube (TNT) to mitigate trade-off between water permeability and solute rejection of EDC. The characterization indicated that the membrane surface hydrophilicity has been greatly increased with the presence of TNT. Using bisphenol A (BPA) and caffeine as model EDC, the removal efficiencies of the pristine TFC and thin-film nanocomposite (TFN) membranes were evaluated. Compared to TFC membrane, the membrane modified with 0.01% of TNT exhibited improved permeability of 50% and 49% for BPA and caffeine, respectively. A satisfactory BPA rejection of 89.05% and a caffeine rejection of 97.89% were achieved by the TNT incorporated TFN membranes. Furthermore, the greater hydrophilicity and smoother surface of 0.01 TFN membrane led to lower membrane fouling tendency under long-term filtration.

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“…Moreover, CVD process can be easily scalable to achieve mass production using some equipment such as roll-to-roll process [15,16]. So far, various types of CVD techniques have been applied to functionalize different types of membranes [17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the flow rates should reach steady-state to produce reproducible polymeric thin films. In order to eliminate the problems related to reaching steady-state flow rate or calibration in typical iCVD reactor, an alternative approach namely, closedbatch iCVD reactor, was developed [20]. In closed-batch iCVD reactor, the reactor is filled by monomer and initiator in place of tuning precursor flow rates.…”

Section: Introductionmentioning

confidence: 99%

Surface Modification of Stainless-Steel Membrane using a Closed-Batch iCVD Reactor for Oil/Water Separation

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Hoyladı

et al. 2021

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Oil-spill is one of the major global issues facing society in this century. The aim of this study was to develop a steel-based membrane for selective separation of oil from oil/water mixture. For this purpose, a single-step, rapid and environmentally friendly closed-batch initiated chemical vapor deposition (iCVD) method was employed to deposit hydrophobic thin film on a stainless-steel mesh. Perfluorodecyl acrylate (PFDA) and tert-butyl peroxide (TBPO) were used as monomer and initiator, respectively. Owing to the inherent vapor-based nature of iCVD method provided excellent conformal coverage on the mesh with high durability. iCVD coated mesh showed 96% oil/water separation efficiency. Highly reproducible results were obtained when the oil/water separation experiments were repeated.

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Environmentally friendly approach for the fabrication of polyamide thin film nanocomposite membrane with enhanced antifouling and antibacterial properties

Cited by 27 publications

References 48 publications

Modification of Liquid Separation Membranes Using Multidimensional Nanomaterials: Revealing the Roles of Dimension Based on Classical Titanium Dioxide

Modification of Liquid Separation Membranes Using Multidimensional Nanomaterials: Revealing the Roles of Dimension Based on Classical Titanium Dioxide

Enhanced Removal of Endocrine-Disrupting Compounds from Wastewater Using Reverse Osmosis Membrane with Titania Nanotube-Constructed Nanochannels

Surface Modification of Stainless-Steel Membrane using a Closed-Batch iCVD Reactor for Oil/Water Separation

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