Crystal growth study of K-F nanozeolite and its catalytic behavior in Aldol condensation of benzaldehyde and heptanal enhanced by microwave heating
An investigation of nanosized potassium aluminosilicate F-type zeolite (K-F, structure code EDI) converted from rice husk ash (RHA) is reported. The crystallization process was studied in an organic template-free system under microwave radiation at 100 °C and the evolution was followed by spectrosco...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Published: |
Elsevier
2017
|
| Subjects: |
| _version_ | 1825721938909069312 |
|---|---|
| author | Wong, Siew Fang Deekomwong, Krittanun Wittayakun, Jatuporn Ling, Tau Chuan Muraza, Oki Adam, Farook Ng, Eng Poh |
| author_facet | Wong, Siew Fang Deekomwong, Krittanun Wittayakun, Jatuporn Ling, Tau Chuan Muraza, Oki Adam, Farook Ng, Eng Poh |
| author_sort | Wong, Siew Fang |
| collection | UM |
| description | An investigation of nanosized potassium aluminosilicate F-type zeolite (K-F, structure code EDI) converted from rice husk ash (RHA) is reported. The crystallization process was studied in an organic template-free system under microwave radiation at 100 °C and the evolution was followed by spectroscopy and microscopy techniques. The study indicated that the crystallization rate of K-F zeolite was significantly enhanced using microwave radiation. The zeolite started to nucleate at 0.5 min and flattened cuboid shaped K-F zeolite crystals (ca. 39 nm, Si/Al = 1.26) were formed after 2 min onwards. The nanocrystalline K-F zeolite exhibited good catalytic performance in solvent-free Aldol condensation reaction between benzaldehyde and heptanal, with ca. 75% reactant conversion and ca. 67% jasminaldehyde selectivity even after fifth cycle of reaction. |
| first_indexed | 2024-03-06T05:57:59Z |
| format | Article |
| id | um.eprints-22785 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:57:59Z |
| publishDate | 2017 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | um.eprints-227852019-10-21T08:08:33Z http://eprints.um.edu.my/22785/ Crystal growth study of K-F nanozeolite and its catalytic behavior in Aldol condensation of benzaldehyde and heptanal enhanced by microwave heating Wong, Siew Fang Deekomwong, Krittanun Wittayakun, Jatuporn Ling, Tau Chuan Muraza, Oki Adam, Farook Ng, Eng Poh Q Science (General) QH Natural history An investigation of nanosized potassium aluminosilicate F-type zeolite (K-F, structure code EDI) converted from rice husk ash (RHA) is reported. The crystallization process was studied in an organic template-free system under microwave radiation at 100 °C and the evolution was followed by spectroscopy and microscopy techniques. The study indicated that the crystallization rate of K-F zeolite was significantly enhanced using microwave radiation. The zeolite started to nucleate at 0.5 min and flattened cuboid shaped K-F zeolite crystals (ca. 39 nm, Si/Al = 1.26) were formed after 2 min onwards. The nanocrystalline K-F zeolite exhibited good catalytic performance in solvent-free Aldol condensation reaction between benzaldehyde and heptanal, with ca. 75% reactant conversion and ca. 67% jasminaldehyde selectivity even after fifth cycle of reaction. Elsevier 2017 Article PeerReviewed Wong, Siew Fang and Deekomwong, Krittanun and Wittayakun, Jatuporn and Ling, Tau Chuan and Muraza, Oki and Adam, Farook and Ng, Eng Poh (2017) Crystal growth study of K-F nanozeolite and its catalytic behavior in Aldol condensation of benzaldehyde and heptanal enhanced by microwave heating. Materials Chemistry and Physics, 196. pp. 295-301. ISSN 0254-0584, DOI https://doi.org/10.1016/j.matchemphys.2017.04.061 <https://doi.org/10.1016/j.matchemphys.2017.04.061>. https://doi.org/10.1016/j.matchemphys.2017.04.061 doi:10.1016/j.matchemphys.2017.04.061 |
| spellingShingle | Q Science (General) QH Natural history Wong, Siew Fang Deekomwong, Krittanun Wittayakun, Jatuporn Ling, Tau Chuan Muraza, Oki Adam, Farook Ng, Eng Poh Crystal growth study of K-F nanozeolite and its catalytic behavior in Aldol condensation of benzaldehyde and heptanal enhanced by microwave heating |
| title | Crystal growth study of K-F nanozeolite and its catalytic behavior in Aldol condensation of benzaldehyde and heptanal enhanced by microwave heating |
| title_full | Crystal growth study of K-F nanozeolite and its catalytic behavior in Aldol condensation of benzaldehyde and heptanal enhanced by microwave heating |
| title_fullStr | Crystal growth study of K-F nanozeolite and its catalytic behavior in Aldol condensation of benzaldehyde and heptanal enhanced by microwave heating |
| title_full_unstemmed | Crystal growth study of K-F nanozeolite and its catalytic behavior in Aldol condensation of benzaldehyde and heptanal enhanced by microwave heating |
| title_short | Crystal growth study of K-F nanozeolite and its catalytic behavior in Aldol condensation of benzaldehyde and heptanal enhanced by microwave heating |
| title_sort | crystal growth study of k f nanozeolite and its catalytic behavior in aldol condensation of benzaldehyde and heptanal enhanced by microwave heating |
| topic | Q Science (General) QH Natural history |
| work_keys_str_mv | AT wongsiewfang crystalgrowthstudyofkfnanozeoliteanditscatalyticbehaviorinaldolcondensationofbenzaldehydeandheptanalenhancedbymicrowaveheating AT deekomwongkrittanun crystalgrowthstudyofkfnanozeoliteanditscatalyticbehaviorinaldolcondensationofbenzaldehydeandheptanalenhancedbymicrowaveheating AT wittayakunjatuporn crystalgrowthstudyofkfnanozeoliteanditscatalyticbehaviorinaldolcondensationofbenzaldehydeandheptanalenhancedbymicrowaveheating AT lingtauchuan crystalgrowthstudyofkfnanozeoliteanditscatalyticbehaviorinaldolcondensationofbenzaldehydeandheptanalenhancedbymicrowaveheating AT murazaoki crystalgrowthstudyofkfnanozeoliteanditscatalyticbehaviorinaldolcondensationofbenzaldehydeandheptanalenhancedbymicrowaveheating AT adamfarook crystalgrowthstudyofkfnanozeoliteanditscatalyticbehaviorinaldolcondensationofbenzaldehydeandheptanalenhancedbymicrowaveheating AT ngengpoh crystalgrowthstudyofkfnanozeoliteanditscatalyticbehaviorinaldolcondensationofbenzaldehydeandheptanalenhancedbymicrowaveheating |