Water adsorption characteristics and microcalorimetric studies of MOF-5 and MOF-199 synthesized using �green� sol-gel
Adsorption isotherms; Air; Alcohols; Crystalline materials; Hydrophilicity; Ion exchange; Metallic compounds; Metals; Morphology; Organometallics; Palm oil; Phase interfaces; Silica; Single crystals; Sol-gel process; Sol-gels; Air water interfaces; Auto-oscillations; Environmental-friendly; Framewor...
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Polish Academy of Sciences
2023
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my.uniten.dspace-249642023-05-29T15:29:33Z Water adsorption characteristics and microcalorimetric studies of MOF-5 and MOF-199 synthesized using �green� sol-gel Misran H. Othman S.Z. Mahadi N. Aspanut Z. Lockman Z. Matsumoto A. Amin N. 6506899840 55548997100 57189241140 35177112800 6602103409 14525231700 7102424614 Adsorption isotherms; Air; Alcohols; Crystalline materials; Hydrophilicity; Ion exchange; Metallic compounds; Metals; Morphology; Organometallics; Palm oil; Phase interfaces; Silica; Single crystals; Sol-gel process; Sol-gels; Air water interfaces; Auto-oscillations; Environmental-friendly; Framework structures; Metal oxide precursors; Microcalorimetric study; Octahedral structures; Porous templates; Driers (materials) In this study, types of porous metal-organic framework materials namely MOF-5 (robust framework), MOF-199 (open framework) in the non ion-exchanged condition was compared in terms of hydrophobicity-hydrophilicity of the surface. The investigations were done using microcalorimetric measurements of heat of immersions in water. MOF-5 and MOF-199 were synthesized using plant-based polymer of palm oil derived fatty alcohols (PODFA) as porous template using �green� sol-gel approach. The synthesis approach applied was environmental-friendly by eliminating the use of organic solvents and surfactants substituting with water and PODFA. X-ray diffraction patterns of MOF-199 exhibited prominent reflection peaks assigned to octahedral structure with small peak shift while MOF-5 exhibited truncated and full cubic morphology. PODFA with longer aliphatic carbon chain exhibited higher porosity and pore volume. The addition of PODFA increased the homogeneity of the cubic and octahedral single crystals typically observed in MOF-5 and MOF-199 morphology. This was due to the increased in immiscibility of metal oxide precursors and organic linkers hence allowing reactions to occur from all directions. PODFA molecules were suggested to form self-assemblies at the air-water interface governed by surface tension auto-oscillations and formed clusters on which metal oxide and organic linker precursors bind with. The water adsorption isotherms of MOF-5 and MOF-199 prepared in this study exhibited �gate-opening� effect at lower relative pressure not observed in other nanoporous framework structure made up of two-components such as organosilica materials. � 2019 Polish Academy of Sciences. All rights reserved. Final 2023-05-29T07:29:32Z 2023-05-29T07:29:32Z 2019 Article 10.12693/APhysPolA.135.1119 2-s2.0-85071186906 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85071186906&doi=10.12693%2fAPhysPolA.135.1119&partnerID=40&md5=e77f8fa1f9ff89ecf10d3300b20189c0 https://irepository.uniten.edu.my/handle/123456789/24964 135 5 1119 1122 All Open Access, Bronze Polish Academy of Sciences Scopus |
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Adsorption isotherms; Air; Alcohols; Crystalline materials; Hydrophilicity; Ion exchange; Metallic compounds; Metals; Morphology; Organometallics; Palm oil; Phase interfaces; Silica; Single crystals; Sol-gel process; Sol-gels; Air water interfaces; Auto-oscillations; Environmental-friendly; Framework structures; Metal oxide precursors; Microcalorimetric study; Octahedral structures; Porous templates; Driers (materials) |
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6506899840 Misran H. Othman S.Z. Mahadi N. Aspanut Z. Lockman Z. Matsumoto A. Amin N. |
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Article |
| author |
Misran H. Othman S.Z. Mahadi N. Aspanut Z. Lockman Z. Matsumoto A. Amin N. |
| spellingShingle |
Misran H. Othman S.Z. Mahadi N. Aspanut Z. Lockman Z. Matsumoto A. Amin N. Water adsorption characteristics and microcalorimetric studies of MOF-5 and MOF-199 synthesized using �green� sol-gel |
| author_sort |
Misran H. |
| title |
Water adsorption characteristics and microcalorimetric studies of MOF-5 and MOF-199 synthesized using �green� sol-gel |
| title_short |
Water adsorption characteristics and microcalorimetric studies of MOF-5 and MOF-199 synthesized using �green� sol-gel |
| title_full |
Water adsorption characteristics and microcalorimetric studies of MOF-5 and MOF-199 synthesized using �green� sol-gel |
| title_fullStr |
Water adsorption characteristics and microcalorimetric studies of MOF-5 and MOF-199 synthesized using �green� sol-gel |
| title_full_unstemmed |
Water adsorption characteristics and microcalorimetric studies of MOF-5 and MOF-199 synthesized using �green� sol-gel |
| title_sort |
water adsorption characteristics and microcalorimetric studies of mof-5 and mof-199 synthesized using �green� sol-gel |
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Polish Academy of Sciences |
| publishDate |
2023 |
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1806428171303649280 |
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13.214268 |