Studies on the Biosorption of Textile Dyes from Aqueous Solutions Using (L.) Leaf Sheath Fibres
The adsorption of two textile dyes onto a low-cost and unexploited marine biomass, Posidonia oceanica (L.), was investigated in batch mode. The biosorption process was studied as a function of contact time, initial pH and temperature. The highest dye adsorption capacities attained at 30°C were 3.081...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2006-07-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/026361706780154383 |
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| author | Mohamed Chaker Ncibi Borhane Mahjoub Mongi Seffen |
| author_facet | Mohamed Chaker Ncibi Borhane Mahjoub Mongi Seffen |
| author_sort | Mohamed Chaker Ncibi |
| collection | DOAJ |
| description | The adsorption of two textile dyes onto a low-cost and unexploited marine biomass, Posidonia oceanica (L.), was investigated in batch mode. The biosorption process was studied as a function of contact time, initial pH and temperature. The highest dye adsorption capacities attained at 30°C were 3.081 mg/g at pH 2 for the Direct dye and 4.252 mg/g at pH 5 for the Reactive dye. The Freundlich, Langmuir and Redlich–Peterson adsorption models were used to determine the parameters of the equilibrium data and, under the operating conditions studied, the best fit to the experimental curves was obtained using the Freundlich model. The thermodynamic constants of the adsorption process (i.e. ΔG 0 , ΔH 0 and ΔS 9 ) were evaluated as −6.36 kJ/mol, 57.80 kJ/mol and −103.45 J/(mol K), respectively, for the Direct dye and as −3.22 kJ/mol, 84.10 kJ/mol and −225.55 J/(mol K), respectively, for the Reactive dye. Consequently, the adsorption of dyes onto P. oceanica biomass was favourable, endothermic and spontaneous. |
| format | Article |
| id | doaj-art-42b1c38056384a3b97af43d74c49a62a |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2006-07-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-42b1c38056384a3b97af43d74c49a62a2025-01-03T01:23:07ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382006-07-012410.1260/026361706780154383Studies on the Biosorption of Textile Dyes from Aqueous Solutions Using (L.) Leaf Sheath FibresMohamed Chaker Ncibi0Borhane Mahjoub1Mongi Seffen2 Applied Chemistry and Environment Research Unit, EPAM, Sousse 4000, Tunisia Applied Chemistry and Environment Research Unit, EPAM, Sousse 4000, Tunisia Applied Chemistry and Environment Research Unit, EPAM, Sousse 4000, TunisiaThe adsorption of two textile dyes onto a low-cost and unexploited marine biomass, Posidonia oceanica (L.), was investigated in batch mode. The biosorption process was studied as a function of contact time, initial pH and temperature. The highest dye adsorption capacities attained at 30°C were 3.081 mg/g at pH 2 for the Direct dye and 4.252 mg/g at pH 5 for the Reactive dye. The Freundlich, Langmuir and Redlich–Peterson adsorption models were used to determine the parameters of the equilibrium data and, under the operating conditions studied, the best fit to the experimental curves was obtained using the Freundlich model. The thermodynamic constants of the adsorption process (i.e. ΔG 0 , ΔH 0 and ΔS 9 ) were evaluated as −6.36 kJ/mol, 57.80 kJ/mol and −103.45 J/(mol K), respectively, for the Direct dye and as −3.22 kJ/mol, 84.10 kJ/mol and −225.55 J/(mol K), respectively, for the Reactive dye. Consequently, the adsorption of dyes onto P. oceanica biomass was favourable, endothermic and spontaneous.https://doi.org/10.1260/026361706780154383 |
| spellingShingle | Mohamed Chaker Ncibi Borhane Mahjoub Mongi Seffen Studies on the Biosorption of Textile Dyes from Aqueous Solutions Using (L.) Leaf Sheath Fibres Adsorption Science & Technology |
| title | Studies on the Biosorption of Textile Dyes from Aqueous Solutions Using (L.) Leaf Sheath Fibres |
| title_full | Studies on the Biosorption of Textile Dyes from Aqueous Solutions Using (L.) Leaf Sheath Fibres |
| title_fullStr | Studies on the Biosorption of Textile Dyes from Aqueous Solutions Using (L.) Leaf Sheath Fibres |
| title_full_unstemmed | Studies on the Biosorption of Textile Dyes from Aqueous Solutions Using (L.) Leaf Sheath Fibres |
| title_short | Studies on the Biosorption of Textile Dyes from Aqueous Solutions Using (L.) Leaf Sheath Fibres |
| title_sort | studies on the biosorption of textile dyes from aqueous solutions using l leaf sheath fibres |
| url | https://doi.org/10.1260/026361706780154383 |
| work_keys_str_mv | AT mohamedchakerncibi studiesonthebiosorptionoftextiledyesfromaqueoussolutionsusinglleafsheathfibres AT borhanemahjoub studiesonthebiosorptionoftextiledyesfromaqueoussolutionsusinglleafsheathfibres AT mongiseffen studiesonthebiosorptionoftextiledyesfromaqueoussolutionsusinglleafsheathfibres |