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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
01/09/2023 |
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Data da última atualização: |
15/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SCHNEIDER, R.; TANDEL, A. M.; DENGA, E.; CORREA, D. S. |
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Afiliação: |
Nanotechnology National Laboratory for Agriculture (LNNA); Department of Chemical and Biological Engineering, University at Buffalo; Department of Chemical and Biological Engineering, University at Buffalo; DANIEL SOUZA CORREA, CNPDIA. |
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Título: |
Scalable synthesis of ultrathin MoS2 membranes for dye desalination. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Journal of Membrane Science Letters, v. 3, 100058, 2023. |
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Páginas: |
7 p. |
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ISSN: |
2772-4212 |
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DOI: |
doi.org/10.1016/j.memlet.2023.100058 |
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Idioma: |
Inglês |
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Conteúdo: |
Molybdenum disulfide (MoS2) has been fabricated into thin-film composite (TFC) membranes for dye desalination due to its excellent underwater stability and tunable interlay spacing. However, it remains challenging to synthesize thin layers of MoS2 with high water permeance and high dye rejection due to the difficulty in fabricating large crystalline sheets or exfoliation. Herein, we report a scalable method coupling bottom-up hydrothermal synthesis and top-down ultrasonic exfoliation to obtain well-dispersed MoS2 nanosheets and a vacuum filtration method to prepare ultrathin membranes (thickness: 30 ? 60 nm) for dye desalination. The MoS2 nanosheets and membranes are thoroughly characterized for their chemistries and nanostructures. The membrane with 60-nm MoS2 exhibits water permeance of 32 LMH/bar, Na2SO4 rejection of 2.3%, and Direct Red-80 rejection of 99.0%. The MoS2 membranes exhibit dye desalination performance superior to state-of-the-art commercial polyamide membranes and many leading membranes based on two-dimensional materials. |
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Palavras-Chave: |
Dye desalination; Hydrothermal reaction; Membranes; MoS2; Ultrasonic exfoliation. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1156320/1/P-Scalable-synthesis-of-ultrathin-MoS2-membranes-for-dye-desalination.pdf
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Marc: |
LEADER 01773naa a2200253 a 4500
001 2156320
005 2024-01-15
008 2023 bl uuuu u00u1 u #d
022 $a2772-4212
024 7 $adoi.org/10.1016/j.memlet.2023.100058$2DOI
100 1 $aSCHNEIDER, R.
245 $aScalable synthesis of ultrathin MoS2 membranes for dye desalination.$h[electronic resource]
260 $c2023
300 $a7 p.
520 $aMolybdenum disulfide (MoS2) has been fabricated into thin-film composite (TFC) membranes for dye desalination due to its excellent underwater stability and tunable interlay spacing. However, it remains challenging to synthesize thin layers of MoS2 with high water permeance and high dye rejection due to the difficulty in fabricating large crystalline sheets or exfoliation. Herein, we report a scalable method coupling bottom-up hydrothermal synthesis and top-down ultrasonic exfoliation to obtain well-dispersed MoS2 nanosheets and a vacuum filtration method to prepare ultrathin membranes (thickness: 30 ? 60 nm) for dye desalination. The MoS2 nanosheets and membranes are thoroughly characterized for their chemistries and nanostructures. The membrane with 60-nm MoS2 exhibits water permeance of 32 LMH/bar, Na2SO4 rejection of 2.3%, and Direct Red-80 rejection of 99.0%. The MoS2 membranes exhibit dye desalination performance superior to state-of-the-art commercial polyamide membranes and many leading membranes based on two-dimensional materials.
653 $aDye desalination
653 $aHydrothermal reaction
653 $aMembranes
653 $aMoS2
653 $aUltrasonic exfoliation
700 1 $aTANDEL, A. M.
700 1 $aDENGA, E.
700 1 $aCORREA, D. S.
773 $tJournal of Membrane Science Letters$gv. 3, 100058, 2023.
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Embrapa Instrumentação (CNPDIA) |
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