Adsorption of gallic acid in aqueous solution by Amberlite XAD-7
The adsorption behaviour of gallic acid onto XAD-7 was studied to determine the effects of pH, contact time, temperature, concentration of gallic acid and amount of XAD-7. The adsorption capacities were strongly influenced by the solution pH where the optimum working pH was found to be at pH 2.0....
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| Format: | Monograph |
| Language: | English |
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Universiti Sains Malaysia
2009
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| Online Access: | http://eprints.usm.my/51025/ http://eprints.usm.my/51025/1/ABDUL%20MUIZ%20BIN%20AZIZ%20-%2024%20pages.pdf |
| _version_ | 1848881877128052736 |
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| author | Abdul Muiz, Aziz |
| author_facet | Abdul Muiz, Aziz |
| author_sort | Abdul Muiz, Aziz |
| building | USM Institutional Repository |
| collection | Online Access |
| description | The adsorption behaviour of gallic acid onto XAD-7 was studied to determine the effects of
pH, contact time, temperature, concentration of gallic acid and amount of XAD-7. The
adsorption capacities were strongly influenced by the solution pH where the optimum
working pH was found to be at pH 2.0. The shaking time (45 min) was found suitable for
maximum adsorption. The batch equilibrium data were correlated to Langmuir and
Freundlich isotherm and the data fitted better to the langmuir isotherm. The
thermodynamic parameters were calculated and the corresponding value showed that the
adsorption of gallic acid onto XA0-7 was spontaneous, entropy-driven and endothermic. |
| first_indexed | 2025-11-15T18:26:00Z |
| format | Monograph |
| id | usm-51025 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T18:26:00Z |
| publishDate | 2009 |
| publisher | Universiti Sains Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-510252022-01-02T03:55:06Z http://eprints.usm.my/51025/ Adsorption of gallic acid in aqueous solution by Amberlite XAD-7 Abdul Muiz, Aziz R Medicine (General) The adsorption behaviour of gallic acid onto XAD-7 was studied to determine the effects of pH, contact time, temperature, concentration of gallic acid and amount of XAD-7. The adsorption capacities were strongly influenced by the solution pH where the optimum working pH was found to be at pH 2.0. The shaking time (45 min) was found suitable for maximum adsorption. The batch equilibrium data were correlated to Langmuir and Freundlich isotherm and the data fitted better to the langmuir isotherm. The thermodynamic parameters were calculated and the corresponding value showed that the adsorption of gallic acid onto XA0-7 was spontaneous, entropy-driven and endothermic. Universiti Sains Malaysia 2009-04 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/51025/1/ABDUL%20MUIZ%20BIN%20AZIZ%20-%2024%20pages.pdf Abdul Muiz, Aziz (2009) Adsorption of gallic acid in aqueous solution by Amberlite XAD-7. Other. Universiti Sains Malaysia. |
| spellingShingle | R Medicine (General) Abdul Muiz, Aziz Adsorption of gallic acid in aqueous solution by Amberlite XAD-7 |
| title | Adsorption of gallic acid in aqueous solution by Amberlite XAD-7 |
| title_full | Adsorption of gallic acid in aqueous solution by Amberlite XAD-7 |
| title_fullStr | Adsorption of gallic acid in aqueous solution by Amberlite XAD-7 |
| title_full_unstemmed | Adsorption of gallic acid in aqueous solution by Amberlite XAD-7 |
| title_short | Adsorption of gallic acid in aqueous solution by Amberlite XAD-7 |
| title_sort | adsorption of gallic acid in aqueous solution by amberlite xad-7 |
| topic | R Medicine (General) |
| url | http://eprints.usm.my/51025/ http://eprints.usm.my/51025/1/ABDUL%20MUIZ%20BIN%20AZIZ%20-%2024%20pages.pdf |