Preparation of a novel zwitterionic striped surface thin-film composite nanofiltration membrane with excellent salt separation performance and antifouling property

Lin, Bo; Tan, Huifen; Li, Wenchao; Gao, Congjie; Pan, Qiaoming

doi:10.1039/d0ra00480d

Cited by 18 publications

(14 citation statements)

References 58 publications

(67 reference statements)

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“…Fourth, the chelation locking of the PA chains by the residual Fe 3+ would be enhanced when more functional groups (−OH and −COOH) are exposed after alkaline etching, which contributes to maintaining the stability of the final loose NF membranes. Lastly, mussel-inspired co-deposition of TA and piperazine (PIP) on the supporting membrane during the IP process would enhance the interface interaction between the separating layer and the sublayer, − which also benefits the antiswelling capability.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Antiswelling Loose Nanofiltration Membranes via a “Selective-Etching-Induced Reinforcing” Strategy for Bioseparation

Guo

Zhang

Chen

et al. 2021

ACS Appl. Mater. Interfaces

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With diverse selectivity, higher permeance, and good antifouling property, loose polyamide nanofiltration (NF) membranes can be potentially deployed in various bioseparation applications. However, the loose NF membrane with a low crosslinking degree generally suffers from the alkali-induced pore swelling during chemical cleaning, resulting in degradation of separation performance with time. In this work, we conceive a novel strategy to tailor the separating layer through alkaline post-etching following the interfacial polymerization process, where piperazine and tannic acid (TA) were used as water-phase monomers, and trimesoyl chloride (TMC) and ferric acetylacetonate were employed as organic monomers in n-hexane. Thereinto, the polyester network formed by TA and TMC was selectively etched by alkaline treatment, thus obtaining a loose NF membrane, whose structure and performance could be facilely tailored by controlling the TA ratio and the etching pH. As a result, the well-designed loose NF membrane exhibited higher flux, better selectivity, and more stable separation performance in a long-term filtration of diluted cane molasses. Interestingly, the obtained loose NF membrane showed excellent antiswelling ability during alkaline cleaning because of network locking induced by Fe3+ chelation, decrease in the carboxyl proportion (more hydroxyl generation due to the ester bond hydrolysis), and enhanced interface interaction between the separation layer and the sublayer attributed to catechol adhesion effect. Therefore, such a “selective-etching-induced reinforcing” strategy could endow the polyamide NF membrane with both loose and antiswelling separation layer in a reliable and scalable way, which provides a new perspective for preparing highly selective and stable NF membrane for resource recovery.

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Section: Introductionmentioning

confidence: 99%

Fabrication of Antiswelling Loose Nanofiltration Membranes via a “Selective-Etching-Induced Reinforcing” Strategy for Bioseparation

Guo

Zhang

Chen

et al. 2021

ACS Appl. Mater. Interfaces

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“…Some biological reagents are also used to improve the structure and performance of membranes, such as taurine, liposomes, glutamine and glycine, etc 98–100 . Wang et al 99 first add liposomes to the amine monomer solution for IP process.…”

Section: Construction Strategies Of Crumpled Structure Membranementioning

confidence: 99%

“…The liposome underneath PA skin layer achieved many nanovoids and ring‐shape wrinkled to raise surface roughness and reduce hydrophobicity. Gao et al 100 developed a striped surface of PA nanofiltration membrane by introducing taurine into the reaction system. The surface roughness heightened from 3.54 to 7.17 nm by increasing the taurine concentration.…”

Section: Construction Strategies Of Crumpled Structure Membranementioning

confidence: 99%

“…Some additives with ionic groups altered the membrane morphology as well as chemical composition. Taurine with sulfonate group and PEI with amino group combined with TA and TMC to form a zwitterionic striped layer leading to antifouling membrane with high salt separation performance 100 . The membrane showed favorable antifouling property in humic acid (HA), SA and bovine serum albumin (BSA) solutions with flux recovery ratio (FRR) > 89.9%.…”

Section: Anti‐fouling Properties Of Crumpled Tfc Membranesmentioning

confidence: 99%

“…Some biological reagents are also used to improve the structure and performance of membranes, such as taurine, liposomes, glutamine and glycine, etc. [98][99][100] Wang et al 99 first add liposomes to the amine monomer solution for IP process. The liposome underneath PA skin layer achieved many nanovoids and ring-shape wrinkled to raise surface roughness and reduce hydrophobicity.…”

Section: Othersmentioning

confidence: 99%

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Constructing highly rough skin layer of thin film (nano)composite polyamide membranes to enhance separation performance: A review

Ren

et al. 2022

J of Applied Polymer Sci

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The thin-film (nano)composite (TFC or TFN) polyamide membrane prepared by interfacial polymerization method has a wide range of applications in water treatment. The preparation of TFC or TFN membrane with a highly wrinkled morphology in the selective layer can significantly improve the permeability of the membrane and is an effective way to break the "trade-off" effect. However, the formation mechanism of highly rough skin layer and the membrane fouling performance associated with the rough structure have been underexplored.

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Improving dye removal ability and fouling resistance of thin‐film nanocomposite nanofiltration membranes using a new citric acid functionalized FSM‐16 mesoporous

Mohammadifar,

Rahimi,

Zinadini

2024

J of Applied Polymer Sci

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The development of superior thin‐film nanocomposite (TFN) membranes with good separation performance and anti‐fouling capacity is required to address the larger‐scale freshwater need. In this study, a new citric acid‐functionalized FSM‐16 (CA‐FSM‐16) mesoporous was successfully synthesized and characterized. Subsequently, it was introduced on the surface of the sodium hydroxide/cyanuric chloride‐activated PES membrane to fabricate the CA‐FSM‐16 TFN membrane. It was investigated how various CA‐FSM‐16 loadings affected the overall physicochemical characteristics and performance of the membrane. The SEM analysis confirmed the TFN structure of the fabricated membranes. All manufactured membranes displayed improved hydrophilicity and flux. For the pristine membrane, the salt (Na2SO4) rejection was measured 73.20 ± 2.10%, whereas for the TFN‐0.08 membrane, it was measured 91.40 ± 1.80%. The dye rejection experiment in cross‐flow filtration showed that the TFN‐0.08 membrane had the maximum licorice retention among the membranes (99.10 ± 2.00%). In addition, the CA‐FSM‐16 TFN membranes demonstrated superior antifouling performance, especially the optimum membrane (TFN‐0.08), which showed a high flux recovery ratio (FRR) of 97.10 ± 1.90% and a low irreversible fouling ratio (DRir) of 2.90%. The introduction of CA‐FSM‐16 on the surface of the PES membrane via the surface modification method was a potentially useful technology to fabricate a high‐performing TFN membrane for water treatment applications.

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Preparation of a novel zwitterionic striped surface thin-film composite nanofiltration membrane with excellent salt separation performance and antifouling property

Abstract: Thin-film composite (TFC) nanofiltration (NF) membranes with zwitterionic striped surface were fabricated via the co-deposition and interfacial polymerization.

Cited by 18 publications

References 58 publications

Fabrication of Antiswelling Loose Nanofiltration Membranes via a “Selective-Etching-Induced Reinforcing” Strategy for Bioseparation

Fabrication of Antiswelling Loose Nanofiltration Membranes via a “Selective-Etching-Induced Reinforcing” Strategy for Bioseparation

Constructing highly rough skin layer of thin film (nano)composite polyamide membranes to enhance separation performance: A review

Improving dye removal ability and fouling resistance of thin‐film nanocomposite nanofiltration membranes using a new citric acid functionalized FSM‐16 mesoporous

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