Influence of hydrophobic tail on the adsorption of isomeric alcohols at air/water interface
This study investigated the influence of molecular structures of alcohols on adsorption behaviour. The adsorption isotherm of nonanols, octanols and hexanols at air–water interface was determined using the Wilhelmy plate method, in combination with an automatic dispenser. The experimental data were...
| Main Authors: | , , |
|---|---|
| Format: | Journal Article |
| Published: |
John Wiley & Sons, Ltd
2012
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/9264 |
| _version_ | 1848745898941612032 |
|---|---|
| author | Thu, Le Phan, Chi Ang, Ha Ming |
| author_facet | Thu, Le Phan, Chi Ang, Ha Ming |
| author_sort | Thu, Le |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This study investigated the influence of molecular structures of alcohols on adsorption behaviour. The adsorption isotherm of nonanols, octanols and hexanols at air–water interface was determined using the Wilhelmy plate method, in combination with an automatic dispenser. The experimental data were fitted with Frumkin–Langmuir isotherms by applying least-squares techniques in Solver (MS Excel) to identify the adsorption parameters. These parameters can be used to quantify and compare the surface behaviours of all the investigated surfactants. It has been found that with the same concentration, the straight chain alcohols had stronger surface activity than the corresponding branched alcohols. The adsorption activity was also strongly related to the position of the hydroxyl group, with primary alcohols showing strongest adsorption. Overall, it was found that the surface activity decreased with increasing bulkiness of the alcohol structure. The results also highlighted the significance of low concentration data in determining the adsorption isotherm of alcohols. |
| first_indexed | 2025-11-14T06:24:41Z |
| format | Journal Article |
| id | curtin-20.500.11937-9264 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:24:41Z |
| publishDate | 2012 |
| publisher | John Wiley & Sons, Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-92642017-09-13T15:54:08Z Influence of hydrophobic tail on the adsorption of isomeric alcohols at air/water interface Thu, Le Phan, Chi Ang, Ha Ming air–liquid interface alcohols surface tension adsorption This study investigated the influence of molecular structures of alcohols on adsorption behaviour. The adsorption isotherm of nonanols, octanols and hexanols at air–water interface was determined using the Wilhelmy plate method, in combination with an automatic dispenser. The experimental data were fitted with Frumkin–Langmuir isotherms by applying least-squares techniques in Solver (MS Excel) to identify the adsorption parameters. These parameters can be used to quantify and compare the surface behaviours of all the investigated surfactants. It has been found that with the same concentration, the straight chain alcohols had stronger surface activity than the corresponding branched alcohols. The adsorption activity was also strongly related to the position of the hydroxyl group, with primary alcohols showing strongest adsorption. Overall, it was found that the surface activity decreased with increasing bulkiness of the alcohol structure. The results also highlighted the significance of low concentration data in determining the adsorption isotherm of alcohols. 2012 Journal Article http://hdl.handle.net/20.500.11937/9264 10.1002/apj.527 John Wiley & Sons, Ltd restricted |
| spellingShingle | air–liquid interface alcohols surface tension adsorption Thu, Le Phan, Chi Ang, Ha Ming Influence of hydrophobic tail on the adsorption of isomeric alcohols at air/water interface |
| title | Influence of hydrophobic tail on the adsorption of isomeric alcohols at air/water interface |
| title_full | Influence of hydrophobic tail on the adsorption of isomeric alcohols at air/water interface |
| title_fullStr | Influence of hydrophobic tail on the adsorption of isomeric alcohols at air/water interface |
| title_full_unstemmed | Influence of hydrophobic tail on the adsorption of isomeric alcohols at air/water interface |
| title_short | Influence of hydrophobic tail on the adsorption of isomeric alcohols at air/water interface |
| title_sort | influence of hydrophobic tail on the adsorption of isomeric alcohols at air/water interface |
| topic | air–liquid interface alcohols surface tension adsorption |
| url | http://hdl.handle.net/20.500.11937/9264 |