An Investigation into the Adsorption Characteristics of Grafted Mesoporous Silicates for the Removal of Tetramethyl Ammonium Hydroxide from Aqueous Solution
Four cubic mesoporous silicates (CMS), one unmodified and three grafted with amine, carboxylic and cyano surface functional groups, were prepared, characterised and compared as adsorbents for tetramethyl ammonium hydroxide (TMAH) from aqueous solution. The adsorption process was studied as a functio...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2002-10-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/026361702321104273 |
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| author | Brian P. Kelleher Aidan M. Doyle Benjamin K. Hodnett Thomas F. O'Dwyer |
| author_facet | Brian P. Kelleher Aidan M. Doyle Benjamin K. Hodnett Thomas F. O'Dwyer |
| author_sort | Brian P. Kelleher |
| collection | DOAJ |
| description | Four cubic mesoporous silicates (CMS), one unmodified and three grafted with amine, carboxylic and cyano surface functional groups, were prepared, characterised and compared as adsorbents for tetramethyl ammonium hydroxide (TMAH) from aqueous solution. The adsorption process was studied as a function of molecular size and CMS pore volume. Sorption on the unmodified, cyano- and carboxylic-grafted adsorbents closely followed the Langmuir model while adsorption on the amine-treated silicate conformed to the Freundlich model. A comparison of the adsorbent pore volume and the volume of sorbed TMAH molecules suggested that monolayer sorption occurred, there being some evidence that surface functional groups influenced the adsorption process. The presence or absence of structural order, as defined by X-ray diffraction analysis, had no significant influence on the adsorption, as all materials, both ordered and disordered, had relatively high adsorption capacities. |
| format | Article |
| id | doaj-art-f0db03ed1d044c5b9b1a74f27438fc1f |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2002-10-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-f0db03ed1d044c5b9b1a74f27438fc1f2025-01-02T02:57:50ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382002-10-012010.1260/026361702321104273An Investigation into the Adsorption Characteristics of Grafted Mesoporous Silicates for the Removal of Tetramethyl Ammonium Hydroxide from Aqueous SolutionBrian P. Kelleher0Aidan M. Doyle1Benjamin K. Hodnett2Thomas F. O'Dwyer3 Department of Chemical and Environmental Sciences, University of Limerick, Ireland Department of Chemical and Environmental Sciences, University of Limerick, Ireland Materials and Surface Science Institute, University of Limerick, Ireland Materials and Surface Science Institute, University of Limerick, IrelandFour cubic mesoporous silicates (CMS), one unmodified and three grafted with amine, carboxylic and cyano surface functional groups, were prepared, characterised and compared as adsorbents for tetramethyl ammonium hydroxide (TMAH) from aqueous solution. The adsorption process was studied as a function of molecular size and CMS pore volume. Sorption on the unmodified, cyano- and carboxylic-grafted adsorbents closely followed the Langmuir model while adsorption on the amine-treated silicate conformed to the Freundlich model. A comparison of the adsorbent pore volume and the volume of sorbed TMAH molecules suggested that monolayer sorption occurred, there being some evidence that surface functional groups influenced the adsorption process. The presence or absence of structural order, as defined by X-ray diffraction analysis, had no significant influence on the adsorption, as all materials, both ordered and disordered, had relatively high adsorption capacities.https://doi.org/10.1260/026361702321104273 |
| spellingShingle | Brian P. Kelleher Aidan M. Doyle Benjamin K. Hodnett Thomas F. O'Dwyer An Investigation into the Adsorption Characteristics of Grafted Mesoporous Silicates for the Removal of Tetramethyl Ammonium Hydroxide from Aqueous Solution Adsorption Science & Technology |
| title | An Investigation into the Adsorption Characteristics of Grafted Mesoporous Silicates for the Removal of Tetramethyl Ammonium Hydroxide from Aqueous Solution |
| title_full | An Investigation into the Adsorption Characteristics of Grafted Mesoporous Silicates for the Removal of Tetramethyl Ammonium Hydroxide from Aqueous Solution |
| title_fullStr | An Investigation into the Adsorption Characteristics of Grafted Mesoporous Silicates for the Removal of Tetramethyl Ammonium Hydroxide from Aqueous Solution |
| title_full_unstemmed | An Investigation into the Adsorption Characteristics of Grafted Mesoporous Silicates for the Removal of Tetramethyl Ammonium Hydroxide from Aqueous Solution |
| title_short | An Investigation into the Adsorption Characteristics of Grafted Mesoporous Silicates for the Removal of Tetramethyl Ammonium Hydroxide from Aqueous Solution |
| title_sort | investigation into the adsorption characteristics of grafted mesoporous silicates for the removal of tetramethyl ammonium hydroxide from aqueous solution |
| url | https://doi.org/10.1260/026361702321104273 |
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