Colloid-chemical fabrication of graphene-oxide–wrapped zeolite crystals
Graphene oxide (GO) is a thin laminate that exhibits high flexibility, stiffness, and hydrophilicity. The combination of these properties makes GO promising for application as a colloidal wrapping agent. In this study, we wrap MFI zeolite nanocrystals with GO laminates through a colloid-chemical app...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-07-01
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| Series: | Next Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949822825004216 |
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| Summary: | Graphene oxide (GO) is a thin laminate that exhibits high flexibility, stiffness, and hydrophilicity. The combination of these properties makes GO promising for application as a colloidal wrapping agent. In this study, we wrap MFI zeolite nanocrystals with GO laminates through a colloid-chemical approach. Electrically repulsive MFI zeolite nanocrystals and GO laminates disperse separately in water in the absence of NH4Cl, whereas GO laminates wrap MFI zeolite nanocrystals in the presence of an appropriate amount of NH4Cl. The wrapping structure in aqueous solution can be controlled by controlling the concentration of NH4Cl and amount of GO laminates. The wrapping consists of three stages—proximity configuration, assembly wrapping, and crystal wrapping—depending on the amount on NH4Cl. GO wrapping improves the dispersibility of MFI zeolite nanocrystals for more than two weeks and preserves the inherent porosity of MFI zeolite. |
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| ISSN: | 2949-8228 |