A comparative study between ionic liquid coating and counterparts in bulk for toluene absorption
The structure-activity relationship (SAR) for toluene absorption and desorption in ionic liquids (ILs) has been investigated for seven commercial ILs in bulk and thin liquid layer. ILs with imidazolium cations of different alkyl chain lengths and a Hofmeister series of anions including [CH3COO], [I]...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co. Ltd.
2020-12-01
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| Series: | Green Chemical Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666952820300248 |
| _version_ | 1797976374763323392 |
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| author | Ventura Castillo Ramos Wei Han King Lun Yeung |
| author_facet | Ventura Castillo Ramos Wei Han King Lun Yeung |
| author_sort | Ventura Castillo Ramos |
| collection | DOAJ |
| description | The structure-activity relationship (SAR) for toluene absorption and desorption in ionic liquids (ILs) has been investigated for seven commercial ILs in bulk and thin liquid layer. ILs with imidazolium cations of different alkyl chain lengths and a Hofmeister series of anions including [CH3COO], [I], [BF4], [HSO4], and [PF6] were included. Absorption capacity for toluene increases with increasing kosmotropicity of the cation and anion, while the absorption rate in bulk ILs is governed by viscosity and that in thin ILs layer by the oil-water partition coefficient (Kow). A regenerability coefficient (Rp) measures toluene desorption and IL regeneration. The release rate as measured by dRp/dt correlates well with the Kow and viscosity of the ILs and tx, the time required to completely desorb toluene is related to its ionic strength as measured from v(C2H) of the imidazolium cation. These properties are in turn governed by the kosmotropicity of the cation and anion pair forming the IL. |
| first_indexed | 2024-04-11T04:49:55Z |
| format | Article |
| id | doaj.art-61441004405a464eaae7d95518f93bfe |
| institution | Directory Open Access Journal |
| issn | 2666-9528 |
| language | English |
| last_indexed | 2024-04-11T04:49:55Z |
| publishDate | 2020-12-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Green Chemical Engineering |
| spelling | doaj.art-61441004405a464eaae7d95518f93bfe2022-12-27T04:39:37ZengKeAi Communications Co. Ltd.Green Chemical Engineering2666-95282020-12-0112147154A comparative study between ionic liquid coating and counterparts in bulk for toluene absorptionVentura Castillo Ramos0Wei Han1King Lun Yeung2Division of Environment and Sustainability, Hong Kong SAR, ChinaDivision of Environment and Sustainability, Hong Kong SAR, ChinaDivision of Environment and Sustainability, Hong Kong SAR, China; Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China; Corresponding author.The structure-activity relationship (SAR) for toluene absorption and desorption in ionic liquids (ILs) has been investigated for seven commercial ILs in bulk and thin liquid layer. ILs with imidazolium cations of different alkyl chain lengths and a Hofmeister series of anions including [CH3COO], [I], [BF4], [HSO4], and [PF6] were included. Absorption capacity for toluene increases with increasing kosmotropicity of the cation and anion, while the absorption rate in bulk ILs is governed by viscosity and that in thin ILs layer by the oil-water partition coefficient (Kow). A regenerability coefficient (Rp) measures toluene desorption and IL regeneration. The release rate as measured by dRp/dt correlates well with the Kow and viscosity of the ILs and tx, the time required to completely desorb toluene is related to its ionic strength as measured from v(C2H) of the imidazolium cation. These properties are in turn governed by the kosmotropicity of the cation and anion pair forming the IL.http://www.sciencedirect.com/science/article/pii/S2666952820300248Ionic liquidsVolatile organic compoundsAbsorptionAir purificationStructure-activity relationship |
| spellingShingle | Ventura Castillo Ramos Wei Han King Lun Yeung A comparative study between ionic liquid coating and counterparts in bulk for toluene absorption Green Chemical Engineering Ionic liquids Volatile organic compounds Absorption Air purification Structure-activity relationship |
| title | A comparative study between ionic liquid coating and counterparts in bulk for toluene absorption |
| title_full | A comparative study between ionic liquid coating and counterparts in bulk for toluene absorption |
| title_fullStr | A comparative study between ionic liquid coating and counterparts in bulk for toluene absorption |
| title_full_unstemmed | A comparative study between ionic liquid coating and counterparts in bulk for toluene absorption |
| title_short | A comparative study between ionic liquid coating and counterparts in bulk for toluene absorption |
| title_sort | comparative study between ionic liquid coating and counterparts in bulk for toluene absorption |
| topic | Ionic liquids Volatile organic compounds Absorption Air purification Structure-activity relationship |
| url | http://www.sciencedirect.com/science/article/pii/S2666952820300248 |
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