Study of equilibrium and kinetic adsorption of rhodamine B onto purified bentonite clays
Abstract Currently, the removal of contaminants such as wastewater dye has become an essential task. In view of this, improving the performance of the adsorbents in order to improve the adsorption technique and reduce the total cost of the adsorption process is of great interest to the industrial se...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Cerâmica
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| Series: | Cerâmica |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132018000400598&lng=en&tlng=en |
| _version_ | 1819043262475796480 |
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| author | J. F. Duarte Neto I. D. S. Pereira V. C. da Silva H. C. Ferreira G. de A. Neves R. R. Menezes |
| author_facet | J. F. Duarte Neto I. D. S. Pereira V. C. da Silva H. C. Ferreira G. de A. Neves R. R. Menezes |
| author_sort | J. F. Duarte Neto |
| collection | DOAJ |
| description | Abstract Currently, the removal of contaminants such as wastewater dye has become an essential task. In view of this, improving the performance of the adsorbents in order to improve the adsorption technique and reduce the total cost of the adsorption process is of great interest to the industrial sector. This study investigated the adsorption process of natural and purified bentonite clay adsorbents, using rhodamine B in an aqueous media. Rhodamine B is very toxic to aquatic organisms and may cause long-term adverse effects in the aquatic environment. These clays were used both in the natural form and after purification by centrifuge. All adsorbents were characterized. The kinetics and equilibrium isotherms were studied. In equilibrium, the Freundlich isotherm model was the best fit to the experimental data. In kinetics study, the data were best fit by the pseudo-second order model. The purified clays efficiently removed the rhodamine B. |
| first_indexed | 2024-12-21T09:53:59Z |
| format | Article |
| id | doaj.art-c3350c24cdbf4756b5866c97803a434a |
| institution | Directory Open Access Journal |
| issn | 1678-4553 |
| language | English |
| last_indexed | 2024-12-21T09:53:59Z |
| publisher | Associação Brasileira de Cerâmica |
| record_format | Article |
| series | Cerâmica |
| spelling | doaj.art-c3350c24cdbf4756b5866c97803a434a2022-12-21T19:08:07ZengAssociação Brasileira de CerâmicaCerâmica1678-45536437259860710.1590/0366-69132018643722429S0366-69132018000400598Study of equilibrium and kinetic adsorption of rhodamine B onto purified bentonite claysJ. F. Duarte NetoI. D. S. PereiraV. C. da SilvaH. C. FerreiraG. de A. NevesR. R. MenezesAbstract Currently, the removal of contaminants such as wastewater dye has become an essential task. In view of this, improving the performance of the adsorbents in order to improve the adsorption technique and reduce the total cost of the adsorption process is of great interest to the industrial sector. This study investigated the adsorption process of natural and purified bentonite clay adsorbents, using rhodamine B in an aqueous media. Rhodamine B is very toxic to aquatic organisms and may cause long-term adverse effects in the aquatic environment. These clays were used both in the natural form and after purification by centrifuge. All adsorbents were characterized. The kinetics and equilibrium isotherms were studied. In equilibrium, the Freundlich isotherm model was the best fit to the experimental data. In kinetics study, the data were best fit by the pseudo-second order model. The purified clays efficiently removed the rhodamine B.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132018000400598&lng=en&tlng=enadsorçãobentonitapurificaçãorodamina B |
| spellingShingle | J. F. Duarte Neto I. D. S. Pereira V. C. da Silva H. C. Ferreira G. de A. Neves R. R. Menezes Study of equilibrium and kinetic adsorption of rhodamine B onto purified bentonite clays Cerâmica adsorção bentonita purificação rodamina B |
| title | Study of equilibrium and kinetic adsorption of rhodamine B onto purified bentonite clays |
| title_full | Study of equilibrium and kinetic adsorption of rhodamine B onto purified bentonite clays |
| title_fullStr | Study of equilibrium and kinetic adsorption of rhodamine B onto purified bentonite clays |
| title_full_unstemmed | Study of equilibrium and kinetic adsorption of rhodamine B onto purified bentonite clays |
| title_short | Study of equilibrium and kinetic adsorption of rhodamine B onto purified bentonite clays |
| title_sort | study of equilibrium and kinetic adsorption of rhodamine b onto purified bentonite clays |
| topic | adsorção bentonita purificação rodamina B |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132018000400598&lng=en&tlng=en |
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