Customizing the surface charge of thin-film composite membranes by surface plasma thin film polymerization

Reis, Rackel; Duke, Mikel; Merenda, Andrea; Winther‐Jensen, Bjorn; Puškar, Ljiljana; Tobin, Mark J.; Orbell, John D.; Dumée, Ludovic F.

doi:10.1016/j.memsci.2017.05.013

Cited by 28 publications

(12 citation statements)

References 58 publications

(42 reference statements)

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“…The surface of MF PP [ 12 ], UF PSf [ 12 , 13 ], and RO PA TFC [ 8 ] membranes have been previously amine-enriched by plasma polymerization. The objectives of these studies were to either produce composite membranes for desalination [ 13 ], improve the permeability and fouling resistance of the materials [ 12 ], or tune the surface charge of the composite membranes [ 8 , 54 ].…”

Section: Low-pressure Plasma Processesmentioning

confidence: 99%

“…Entry 3 in Table 3 highlighted the impact of plasma duration on the surface charges of the PA-RO TFC membranes via plasma polymerization of 1-vinylimidazole (VIM) [ 54 ]. As opposed to the Entry 2 [ 12 ], Entry 3 directly measured the surface charges of the amine-enriched RO membranes by using the streaming potential technique for the first time, instead of speculating surface charges by varying pH of the fouling or the process solutions [ 12 , 61 ].…”

Section: Low-pressure Plasma Processesmentioning

confidence: 99%

“…Figure 2 a also demonstrates that the plasma duration may not have a significant impact on the surface properties, since the IEPs of the membrane modified for different durations stayed in a close range of pH 6.3–6.6. Bases on the Entry 3 in Table 3 , the material properties of the monomer precursors rather than the plasma duration played a dominant role in the surface charge of the modified membrane [ 54 ]. Polymerization of VIM monomers triggered by gamma-ray has shown a similar impact on the PA-RO TFC membranes, rendering largely positive charged (+45 mV) PA-RO TFC membranes which was originally negatively charged (−25 mV) [ 62 ].…”

Section: Low-pressure Plasma Processesmentioning

confidence: 99%

“…Monomers bearing carboxylate functional groups have been utilized for membrane surface modification via alternating current (AC), radio frequency (RF), and microwave powered plasma polymerization [ 12 , 35 , 49 , 54 , 63 ]. Acrylic acid (AAc) has been used to improve the hydrophilicity of MF PP [ 12 ] and UF PSf [ 49 ] membranes owing to its high volatility, solubility in water and bearing a high ratio of a carboxyl polar group.…”

Section: Low-pressure Plasma Processesmentioning

confidence: 99%

“…Acrylic acid (AAc) has been used to improve the hydrophilicity of MF PP [ 12 ] and UF PSf [ 49 ] membranes owing to its high volatility, solubility in water and bearing a high ratio of a carboxyl polar group. Alternatively, plasma polymerization of maleic anhydride has been recently applied to customize the surface charge of RO PA TFC membranes [ 54 ].…”

Section: Low-pressure Plasma Processesmentioning

confidence: 99%

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Plasma Modification and Synthesis of Membrane Materials—A Mechanistic Review

et al. 2018

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Although commercial membranes are well established materials for water desalination and wastewater treatment, modification on commercial membranes is still necessary to deliver high-performance with enhanced flux and/or selectivity and fouling resistance. A modification method with plasma techniques has been extensively applied for high-performance membrane production. The paper presents a mechanistic review on the impact of plasma gas and polymerization, at either low pressure or atmospheric pressure on the material properties and performance of the modified membranes. At first, plasma conditions at low-pressure such as plasma power, gas or monomer flow rate, reactor pressure, and treatment duration which affect the chemical structure, surface hydrophilicity, morphology, as well as performance of the membranes have been discussed. The underlying mechanisms of plasma gas and polymerization have been highlighted. Thereafter, the recent research in plasma techniques toward membrane modification at atmospheric environment has been critically evaluated. The research focuses of future plasma-related membrane modification, and fabrication studies have been predicted to closely relate with the implementation of the atmospheric-pressure processes at the large-scale.

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Section: Low-pressure Plasma Processesmentioning

confidence: 99%

Section: Low-pressure Plasma Processesmentioning

confidence: 99%

Section: Low-pressure Plasma Processesmentioning

confidence: 99%

Section: Low-pressure Plasma Processesmentioning

confidence: 99%

Section: Low-pressure Plasma Processesmentioning

confidence: 99%

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Plasma Modification and Synthesis of Membrane Materials—A Mechanistic Review

et al. 2018

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Cross‐linked boron nitride‐piperazine amide thin film nanocomposite membranes for rejection and concentration of per‐ and poly‐fluoroalkyl substances (PFAS)

Abdikheibari

Baskaran

Guijt

et al. 2022

Environmental Quality Mgmt

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Per-and poly-fluoroalkyl substances (PFAS)-contaminated wastewaters present major public health risks given the PFAS thermo-chemical stability and its demonstrated adverse impacts on aquatic life, extended to the entire food chain. To date, remediation of PFAS-contaminated wastewaters have been mainly undertaken with poorly cost-effective strategies, involving multi-step processes. Advanced separation systems enabling the selective capture and concentration of PFAS must be developed. In this work, the potential of nanofiltration (NF) membranes to reject short chain length PFAS, potassium nonafluoro-1-butanesulfonate (C 4 F 9 SO 3 K), is demonstrated with both bare polymeric and amine functionalized-boron nitride BN(NH 2 ) nanosheet-decorated membranes. The BN(NH 2 )-decorated membranes exhibited almost 1.04 times higher permeation upon C 4 F 9 SO 3 K filtration compared to the bare poly(piperazine amide) (PPA) membranes (53 versus 26 L m −2 h −1 ), while maintaining very high C 4 F 9 SO 3 K rejection levels above 93%. A commercial membrane exhibited similar permeation to BN(NH 2 )-decorated membrane, but only retained ∼65% of the C 4 F 9 SO 3 K. The improved filtration performance of the BN(NH 2 )-decorated membrane was rationalized based on advanced characterization results to its enhanced wettability and negative charge density, resulting in weak interactions between the C 4 F 9 SO 3 K and BN(NH 2 ) nanosheets. This communication demonstrates the role and potential of fine surface modifications of NF membranes to support improved separation performance towards PFAS removal.

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