Simultaneous separation and degradation of methylene blue by a thin film nanocomposite membrane containing TiO<sub>2</sub>/MWCNTs nanophotocatalyst

Farhadi, R; Aroon, Mohammad Ali; Pirbazari, Azadeh Ebrahimian; Safarpour, Mahdie; Matsuura, Takeshi; Seirafi, Pouya

doi:10.1080/09593330.2021.1982019

Cited by 3 publications

(2 citation statements)

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“…When piperazine is used during the interfacial polymerization (IP), strong bands are observed at 2850 and 2950 cm −1 , corresponding to the symmetric and asymmetric CH 2 vibrations of piperazine aliphatic carbons [ 86 ]. The incorporation of hydrophilic nanofillers into TFN membranes is associated with an increase in absorption in the range of 3300–3500 cm −1 , owing to the N-H and O-H stretching vibrations, while absorption of the aromatic stretching vibrations is reduced [ 137 ].…”

Section: Membrane Characterizationmentioning

confidence: 99%

“…These chlorination products caused partial membrane damage and loss of membrane selectivity toward salt rejection. The use of nanofillers with multiple oxygenated functionalities such as cellulose nanofibers (CNF) improved the chlorine resistance of the corresponding TFN membranes due to the formation of more hydrogen bonds with the PA layer [ 137 ].…”

Section: Performance Of Tfn Membranes In Desalination and Water Treat...mentioning

confidence: 99%

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Thin-Film Nanocomposite (TFN) Membranes for Water Treatment Applications: Characterization and Performance

et al. 2023

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Thin-film nanocomposite (TFN) membranes have been widely investigated for water treatment applications due to their promising performance in terms of flux, salt rejection, and their antifouling properties. This review article provides an overview of the TFN membrane characterization and performance. It presents different characterization techniques that have been used to analyze these membranes and the nanofillers within them. The techniques comprise structural and elemental analysis, surface and morphology analysis, compositional analysis, and mechanical properties. Additionally, the fundamentals of membrane preparation are also presented, together with a classification of nanofillers that have been used so far. The potential of TFN membranes to address water scarcity and pollution challenges is significant. This review also lists examples of effective TFN membrane applications for water treatment. These include enhanced flux, enhanced salt rejection, antifouling, chlorine resistance, antimicrobial properties, thermal stability, and dye removal. The article concludes with a synopsis of the current status of TFN membranes and future perspectives.

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Section: Membrane Characterizationmentioning

confidence: 99%

Section: Performance Of Tfn Membranes In Desalination and Water Treat...mentioning

confidence: 99%

Thin-Film Nanocomposite (TFN) Membranes for Water Treatment Applications: Characterization and Performance

et al. 2023

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In Situ Synthesis of TiO2-Pillared Bentonite Photocatalyst and its Enhanced Photocatalytic Performance

Wang

Yan²,

Yang³

et al. 2022

Water Air Soil Pollut

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Self-Cleaning Thin Film Polyamide Manganese Dioxide Nanocomposite Membrane via Peroxymonosulfate Activation

Mei,

Huang,

Wang

et al. 2024

Ind. Eng. Chem. Res.

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Severe surface fouling of nanofiltration (NF) has hindered its practical implementation in treating dye-containing wastewater from the textile industry. To address this fouling issue, a novel thin-film nanocomposite NF membrane (TFNx) was proposed by embedding catalytic manganese dioxide (MnO2) nanoparticles within polyamide (PA) rejection layer to realize in situ Fenton-like advanced oxidation self-cleaning. The incorporation of MnO2 nanoparticles was validated to moderately reduce the degree of cross-linking of the PA layer, thereby obtaining an enhanced surface hydrophilicity. The inclusion of MnO2 nanoparticles increased the surface hydrophilicity, resulting in a higher water permeance (TFN10 18.1 ± 0.7 L m–2 h–1 bar–1) that was 57.4% higher than that of the control thin film nanocomposite (TFC) membrane, while a high dye rejection was maintained. In addition, the presence of catalytically capable MnO2 nanoparticles in the Fenton-like reaction led to membrane self-cleaning and demonstrated a better antifouling behavior. The generation of free radicals was triggered by the addition of peroxymonosulfate (PMS). Furthermore, the impacts of operational conditions on membrane self-cleaning performance and operation stability were comprehensively investigated.

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Simultaneous separation and degradation of methylene blue by a thin film nanocomposite membrane containing TiO₂/MWCNTs nanophotocatalyst

Cited by 3 publications

References 50 publications

Thin-Film Nanocomposite (TFN) Membranes for Water Treatment Applications: Characterization and Performance

Thin-Film Nanocomposite (TFN) Membranes for Water Treatment Applications: Characterization and Performance

In Situ Synthesis of TiO2-Pillared Bentonite Photocatalyst and its Enhanced Photocatalytic Performance

Self-Cleaning Thin Film Polyamide Manganese Dioxide Nanocomposite Membrane via Peroxymonosulfate Activation

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Simultaneous separation and degradation of methylene blue by a thin film nanocomposite membrane containing TiO2/MWCNTs nanophotocatalyst

Cited by 3 publications

References 50 publications

Thin-Film Nanocomposite (TFN) Membranes for Water Treatment Applications: Characterization and Performance

Thin-Film Nanocomposite (TFN) Membranes for Water Treatment Applications: Characterization and Performance

In Situ Synthesis of TiO2-Pillared Bentonite Photocatalyst and its Enhanced Photocatalytic Performance

Self-Cleaning Thin Film Polyamide Manganese Dioxide Nanocomposite Membrane via Peroxymonosulfate Activation

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Product

Resources

About

Simultaneous separation and degradation of methylene blue by a thin film nanocomposite membrane containing TiO₂/MWCNTs nanophotocatalyst