Application of silica–alumina oxides of different compositions for removal of C.I. Reactive Black 5 dye from wastewaters
In this paper adsorptive removal of hazardous dye C.I. Reactive Black 5 from aqueous solutions was investigated using the mixed silica–alumina oxides including of 4% SiO 2 and 96% Al 2 O 3 as well as 97% SiO 2 and 3% Al 2 O 3 . The kinetic studies revealed that with the increasing initial dye concen...
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| Format: | Article |
| Language: | English |
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SAGE Publications
2017-06-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/0263617417695271 |
| _version_ | 1797288480745717760 |
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| author | Monika Wawrzkiewicz Małgorzata Wiśniewska Vladimir M Gun'ko |
| author_facet | Monika Wawrzkiewicz Małgorzata Wiśniewska Vladimir M Gun'ko |
| author_sort | Monika Wawrzkiewicz |
| collection | DOAJ |
| description | In this paper adsorptive removal of hazardous dye C.I. Reactive Black 5 from aqueous solutions was investigated using the mixed silica–alumina oxides including of 4% SiO 2 and 96% Al 2 O 3 as well as 97% SiO 2 and 3% Al 2 O 3 . The kinetic studies revealed that with the increasing initial dye concentration from 10 to 30 mg/l and contact time from 1 to 240 min, the sorption capacities ( q t ) increased and the equilibrium was observed after 240 min. Sorption of C.I. Reactive Black 5 on 4% SiO 2 and 96% Al 2 O 3 and 97% SiO 2 and 3% Al 2 O 3 takes place through the pseudo-second-order mechanism rather than the pseudo-first-order one. The experimental data were fitted using the Langmuir and Freundlich isotherm models. The effect of the auxiliaries such as anionic surfactant (sodium dodecyl sulphate) and sodium chloride on C.I. Reactive Black 5 removal was investigated in the 10 mg/l C.I. Reactive Black 5–0.1–1 g/l sodium dodecyl sulphate or 5–20 g/l NaCl systems. The potentiometric titrations indicated that the presence of C.I. Reactive Black 5 changed the surface charge density of silica–alumina mixed oxides, especially in the case of 4% SiO 2 and 96% Al 2 O 3 system. |
| first_indexed | 2024-03-07T18:50:06Z |
| format | Article |
| id | doaj.art-1d29ae0574d14b4fa9079141eec065ff |
| institution | Directory Open Access Journal |
| issn | 0263-6174 2048-4038 |
| language | English |
| last_indexed | 2024-03-07T18:50:06Z |
| publishDate | 2017-06-01 |
| publisher | SAGE Publications |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-1d29ae0574d14b4fa9079141eec065ff2024-03-02T01:48:51ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40382017-06-013510.1177/0263617417695271Application of silica–alumina oxides of different compositions for removal of C.I. Reactive Black 5 dye from wastewatersMonika WawrzkiewiczMałgorzata WiśniewskaVladimir M Gun'koIn this paper adsorptive removal of hazardous dye C.I. Reactive Black 5 from aqueous solutions was investigated using the mixed silica–alumina oxides including of 4% SiO 2 and 96% Al 2 O 3 as well as 97% SiO 2 and 3% Al 2 O 3 . The kinetic studies revealed that with the increasing initial dye concentration from 10 to 30 mg/l and contact time from 1 to 240 min, the sorption capacities ( q t ) increased and the equilibrium was observed after 240 min. Sorption of C.I. Reactive Black 5 on 4% SiO 2 and 96% Al 2 O 3 and 97% SiO 2 and 3% Al 2 O 3 takes place through the pseudo-second-order mechanism rather than the pseudo-first-order one. The experimental data were fitted using the Langmuir and Freundlich isotherm models. The effect of the auxiliaries such as anionic surfactant (sodium dodecyl sulphate) and sodium chloride on C.I. Reactive Black 5 removal was investigated in the 10 mg/l C.I. Reactive Black 5–0.1–1 g/l sodium dodecyl sulphate or 5–20 g/l NaCl systems. The potentiometric titrations indicated that the presence of C.I. Reactive Black 5 changed the surface charge density of silica–alumina mixed oxides, especially in the case of 4% SiO 2 and 96% Al 2 O 3 system.https://doi.org/10.1177/0263617417695271 |
| spellingShingle | Monika Wawrzkiewicz Małgorzata Wiśniewska Vladimir M Gun'ko Application of silica–alumina oxides of different compositions for removal of C.I. Reactive Black 5 dye from wastewaters Adsorption Science & Technology |
| title | Application of silica–alumina oxides of different compositions for removal of C.I. Reactive Black 5 dye from wastewaters |
| title_full | Application of silica–alumina oxides of different compositions for removal of C.I. Reactive Black 5 dye from wastewaters |
| title_fullStr | Application of silica–alumina oxides of different compositions for removal of C.I. Reactive Black 5 dye from wastewaters |
| title_full_unstemmed | Application of silica–alumina oxides of different compositions for removal of C.I. Reactive Black 5 dye from wastewaters |
| title_short | Application of silica–alumina oxides of different compositions for removal of C.I. Reactive Black 5 dye from wastewaters |
| title_sort | application of silica alumina oxides of different compositions for removal of c i reactive black 5 dye from wastewaters |
| url | https://doi.org/10.1177/0263617417695271 |
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