Highly Efficient Arginine Intercalated Graphene Oxide Composite Membranes for Water Desalination
Graphene oxide-based composite membranes have received enormous attention for highly efficient water desalination. Herein, we prepare arginine/graphene oxide (Arg/GO) composite membranes by surface functionalizing GO nanosheets with arginine amino acid. Arginine has a unique combination of hydroxyl and amino functional groups that cross-link GO nanosheets through hydrogen bonding and electrostatic interactions. The as-prepared ArgGO composite membranes with different thicknesses are used to separate the salt and dye molecules. The 900-nm-thick Arg@GO composite membrane shows high rejection of 98% for NaCl and 99.8% for MgCl2, Ni(NO3)2, and Pb(NO3)2 with good water permeance. Such a membrane also shows a high separation efficiency (100%) for methylene blue, rhodamine B, and Evans blue dyes. At the same time, the ultrathin Arg@GO composite membrane (220 ± 10 nm) exhibits high water permeance of up to 2100 ± 10 L m-2 h-1 bar-1. Furthermore, the 900-nm-thick Arg@GO composite membrane is stable in an aqueous environment for 40 days with significantly less swelling. Therefore, these membranes can be utilized in future desalination and separation applications.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:39 |
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| Enthalten in: |
Langmuir : the ACS journal of surfaces and colloids - 39(2023), 50 vom: 19. Dez., Seite 18447-18457 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Soomro, Faheeda [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Revised 19.12.2023 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/acs.langmuir.3c02699 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM365468436 |
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| 520 | |a Graphene oxide-based composite membranes have received enormous attention for highly efficient water desalination. Herein, we prepare arginine/graphene oxide (Arg/GO) composite membranes by surface functionalizing GO nanosheets with arginine amino acid. Arginine has a unique combination of hydroxyl and amino functional groups that cross-link GO nanosheets through hydrogen bonding and electrostatic interactions. The as-prepared ArgGO composite membranes with different thicknesses are used to separate the salt and dye molecules. The 900-nm-thick Arg@GO composite membrane shows high rejection of 98% for NaCl and 99.8% for MgCl2, Ni(NO3)2, and Pb(NO3)2 with good water permeance. Such a membrane also shows a high separation efficiency (100%) for methylene blue, rhodamine B, and Evans blue dyes. At the same time, the ultrathin Arg@GO composite membrane (220 ± 10 nm) exhibits high water permeance of up to 2100 ± 10 L m-2 h-1 bar-1. Furthermore, the 900-nm-thick Arg@GO composite membrane is stable in an aqueous environment for 40 days with significantly less swelling. Therefore, these membranes can be utilized in future desalination and separation applications | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Ali, Akbar |e verfasserin |4 aut | |
| 700 | 1 | |a Ullah, Sami |e verfasserin |4 aut | |
| 700 | 1 | |a Iqbal, Muzaffar |e verfasserin |4 aut | |
| 700 | 1 | |a Alshahrani, Thamraa |e verfasserin |4 aut | |
| 700 | 1 | |a Khan, Firoz |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Jun |e verfasserin |4 aut | |
| 700 | 1 | |a Thebo, Khalid Hussain |e verfasserin |4 aut | |
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