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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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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| Series: | Next Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949822825004216 |
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| author | Hayato Otsuka Kei Kubo Elda-Zoraida Piña-Salazar Ayumi Furuse Yasunori Yoshikawa Ryota Kobayashi Katsumi Kaneko |
| author_facet | Hayato Otsuka Kei Kubo Elda-Zoraida Piña-Salazar Ayumi Furuse Yasunori Yoshikawa Ryota Kobayashi Katsumi Kaneko |
| author_sort | Hayato Otsuka |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-2caa445c23e6409b80af2c7c8c72b9be |
| institution | Kabale University |
| issn | 2949-8228 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Next Materials |
| spelling | doaj-art-2caa445c23e6409b80af2c7c8c72b9be2025-08-20T03:29:34ZengElsevierNext Materials2949-82282025-07-01810090310.1016/j.nxmate.2025.100903Colloid-chemical fabrication of graphene-oxide–wrapped zeolite crystalsHayato Otsuka0Kei Kubo1Elda-Zoraida Piña-Salazar2Ayumi Furuse3Yasunori Yoshikawa4Ryota Kobayashi5Katsumi Kaneko6Research Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, JapanResearch Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, JapanResearch Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, JapanResearch Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, JapanResearch Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan; Research Institute, Takagi Co., Ltd., 413, Horikoshi, Kokuraminami-ku, Kitakyushu 802-8540, JapanResearch Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan; Department of Materials System Engineering, National Institute of Technology, Kurume College, 1-1-1 Komorino, Kurume 830-8555, JapanResearch Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan; Institute for Aqua Regeneration, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan; Corresponding author at: Research Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan.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.http://www.sciencedirect.com/science/article/pii/S2949822825004216Graphene oxideWrappingNanocrystalColloidal stabilityZeoliteNanoporosity |
| spellingShingle | Hayato Otsuka Kei Kubo Elda-Zoraida Piña-Salazar Ayumi Furuse Yasunori Yoshikawa Ryota Kobayashi Katsumi Kaneko Colloid-chemical fabrication of graphene-oxide–wrapped zeolite crystals Next Materials Graphene oxide Wrapping Nanocrystal Colloidal stability Zeolite Nanoporosity |
| title | Colloid-chemical fabrication of graphene-oxide–wrapped zeolite crystals |
| title_full | Colloid-chemical fabrication of graphene-oxide–wrapped zeolite crystals |
| title_fullStr | Colloid-chemical fabrication of graphene-oxide–wrapped zeolite crystals |
| title_full_unstemmed | Colloid-chemical fabrication of graphene-oxide–wrapped zeolite crystals |
| title_short | Colloid-chemical fabrication of graphene-oxide–wrapped zeolite crystals |
| title_sort | colloid chemical fabrication of graphene oxide wrapped zeolite crystals |
| topic | Graphene oxide Wrapping Nanocrystal Colloidal stability Zeolite Nanoporosity |
| url | http://www.sciencedirect.com/science/article/pii/S2949822825004216 |
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