Cyclodextrin modified ionic liquid material as a modifier for cloud point extraction of phenolic compounds using spectrophotometry
A greener method based on cloud point extraction (CPE) in the presence of b-cyclodextrin (CPE-bCD) and β-cyclodextrin functionalized with ionic liquids (CPE- β CD-IL) systems were investigated and compared for the removal of 2,4,6-TCP and 4-NP in aqueous sample using UV-Vis spectrophotometric method...
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| Format: | Article |
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Springer Verlag (Germany)
2016
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| _version_ | 1825721272730910720 |
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| author | Zain, N.N.M. Raoov, M. Abu Bakar, N.K. Mohamad, S. |
| author_facet | Zain, N.N.M. Raoov, M. Abu Bakar, N.K. Mohamad, S. |
| author_sort | Zain, N.N.M. |
| collection | UM |
| description | A greener method based on cloud point extraction (CPE) in the presence of b-cyclodextrin (CPE-bCD) and β-cyclodextrin functionalized with ionic liquids (CPE- β CD-IL) systems were investigated and compared for the removal of 2,4,6-TCP and 4-NP in aqueous sample using UV-Vis spectrophotometric method. In the present study, β CD-IL modifier, was used in CPE- β CD-IL system as an enhancement in the removal of 2,4,6-TCP and 4-NP. The removal of 2,4,6-TCP and 4-NP were optimum at pH 7 with concentration of DC193C, 0.5 (v/v %), for this work. Apart from that, the removal process was found to be optimum at 10 mg L-1 of both modifies concentration. For the isotherm study, monolayer solubilization capacity is greater for 2,4,6-TCP than 4-NP. The performance of the β CD-IL modifier towards the hydrophilic 4-NP showed enhanced extraction efficiency in the present study as compared to the β -CD modifier. Finally, the interactions between the cavity of β CD-IL with 4-NP and DC193C were investigated and the results show that the inclusion of the complex formation, hydrogen bonding between DC193C and 4-NP, π- π interaction, electrostatic attraction between the imidazolium ring of the β CD-IL was the main interactions involved in the extraction process. |
| first_indexed | 2024-03-06T05:47:52Z |
| format | Article |
| id | um.eprints-19299 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:47:52Z |
| publishDate | 2016 |
| publisher | Springer Verlag (Germany) |
| record_format | dspace |
| spelling | um.eprints-192992018-09-19T05:36:43Z http://eprints.um.edu.my/19299/ Cyclodextrin modified ionic liquid material as a modifier for cloud point extraction of phenolic compounds using spectrophotometry Zain, N.N.M. Raoov, M. Abu Bakar, N.K. Mohamad, S. Q Science (General) QD Chemistry A greener method based on cloud point extraction (CPE) in the presence of b-cyclodextrin (CPE-bCD) and β-cyclodextrin functionalized with ionic liquids (CPE- β CD-IL) systems were investigated and compared for the removal of 2,4,6-TCP and 4-NP in aqueous sample using UV-Vis spectrophotometric method. In the present study, β CD-IL modifier, was used in CPE- β CD-IL system as an enhancement in the removal of 2,4,6-TCP and 4-NP. The removal of 2,4,6-TCP and 4-NP were optimum at pH 7 with concentration of DC193C, 0.5 (v/v %), for this work. Apart from that, the removal process was found to be optimum at 10 mg L-1 of both modifies concentration. For the isotherm study, monolayer solubilization capacity is greater for 2,4,6-TCP than 4-NP. The performance of the β CD-IL modifier towards the hydrophilic 4-NP showed enhanced extraction efficiency in the present study as compared to the β -CD modifier. Finally, the interactions between the cavity of β CD-IL with 4-NP and DC193C were investigated and the results show that the inclusion of the complex formation, hydrogen bonding between DC193C and 4-NP, π- π interaction, electrostatic attraction between the imidazolium ring of the β CD-IL was the main interactions involved in the extraction process. Springer Verlag (Germany) 2016 Article PeerReviewed Zain, N.N.M. and Raoov, M. and Abu Bakar, N.K. and Mohamad, S. (2016) Cyclodextrin modified ionic liquid material as a modifier for cloud point extraction of phenolic compounds using spectrophotometry. Journal of Inclusion Phenomena and Macrocyclic Chemistry, 84 (1-2). pp. 137-152. ISSN 1388-3127, DOI https://doi.org/10.1007/s10847-015-0591-y <https://doi.org/10.1007/s10847-015-0591-y>. http://dx.doi.org/10.1007/s10847-015-0591-y doi:10.1007/s10847-015-0591-y |
| spellingShingle | Q Science (General) QD Chemistry Zain, N.N.M. Raoov, M. Abu Bakar, N.K. Mohamad, S. Cyclodextrin modified ionic liquid material as a modifier for cloud point extraction of phenolic compounds using spectrophotometry |
| title | Cyclodextrin modified ionic liquid material as a modifier for cloud point extraction of phenolic compounds using spectrophotometry |
| title_full | Cyclodextrin modified ionic liquid material as a modifier for cloud point extraction of phenolic compounds using spectrophotometry |
| title_fullStr | Cyclodextrin modified ionic liquid material as a modifier for cloud point extraction of phenolic compounds using spectrophotometry |
| title_full_unstemmed | Cyclodextrin modified ionic liquid material as a modifier for cloud point extraction of phenolic compounds using spectrophotometry |
| title_short | Cyclodextrin modified ionic liquid material as a modifier for cloud point extraction of phenolic compounds using spectrophotometry |
| title_sort | cyclodextrin modified ionic liquid material as a modifier for cloud point extraction of phenolic compounds using spectrophotometry |
| topic | Q Science (General) QD Chemistry |
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