Grewia spp. Biopolymer as Low-Cost Biosorbent for Hexavalent Chromium Removal
In this study, Grewia spp. biopolymer was utilized as a biosorbent for elimination of hexavalent chromium from water. Fourier-transform infrared spectrometry (FTIR) and X-ray diffraction (XRD) were performed for characterization of the biosorbent. Experiments were conducted in a batch mode at room t...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2019/6505731 |
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| author | G. P. Kofa G. R. Nkoue Ndongo M. B. Kameni Ngounou M. N. Nsoe E. V. Amba S. Ndi Koungou |
| author_facet | G. P. Kofa G. R. Nkoue Ndongo M. B. Kameni Ngounou M. N. Nsoe E. V. Amba S. Ndi Koungou |
| author_sort | G. P. Kofa |
| collection | DOAJ |
| description | In this study, Grewia spp. biopolymer was utilized as a biosorbent for elimination of hexavalent chromium from water. Fourier-transform infrared spectrometry (FTIR) and X-ray diffraction (XRD) were performed for characterization of the biosorbent. Experiments were conducted in a batch mode at room temperature (25 ± 2°C) and agitation speed of 100 rpm to determine the influence of biosorbent dose, contact time, Cr(VI) concentration, and initial solution pH. It was found that equilibrium was attained in 50 min. A pseudo-first-order model suited well than a pseudo-second-order model. Biosorption capacity of Grewia spp. biopolymer increased with increase in concentration and depended on the solution pH. Langmuir and Freundlich models described experimental data very well. These findings showed that Grewia spp. biopolymer can serve as a biosorbent for elimination of Cr(VI) from water. |
| format | Article |
| id | doaj-art-877ace8cd9f74f0196b919d56c9bfba8 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-877ace8cd9f74f0196b919d56c9bfba82025-02-03T06:07:11ZengWileyJournal of Chemistry2090-90632090-90712019-01-01201910.1155/2019/65057316505731Grewia spp. Biopolymer as Low-Cost Biosorbent for Hexavalent Chromium RemovalG. P. Kofa0G. R. Nkoue Ndongo1M. B. Kameni Ngounou2M. N. Nsoe3E. V. Amba4S. Ndi Koungou5Water Treatment and Filtration Research (Chem. Eng.) Group, Department of Process Engineering, ENSAI, University of Ngaoundere, P.O. Box 455, Ngaoundere, CameroonFaculty of Science, University of Douala, P.O. Box 24157, Douala, CameroonWater Treatment and Filtration Research (Chem. Eng.) Group, Department of Process Engineering, ENSAI, University of Ngaoundere, P.O. Box 455, Ngaoundere, CameroonWater Treatment and Filtration Research (Chem. Eng.) Group, Department of Process Engineering, ENSAI, University of Ngaoundere, P.O. Box 455, Ngaoundere, CameroonWater Treatment and Filtration Research (Chem. Eng.) Group, Department of Process Engineering, ENSAI, University of Ngaoundere, P.O. Box 455, Ngaoundere, CameroonWater Treatment and Filtration Research (Chem. Eng.) Group, Department of Process Engineering, ENSAI, University of Ngaoundere, P.O. Box 455, Ngaoundere, CameroonIn this study, Grewia spp. biopolymer was utilized as a biosorbent for elimination of hexavalent chromium from water. Fourier-transform infrared spectrometry (FTIR) and X-ray diffraction (XRD) were performed for characterization of the biosorbent. Experiments were conducted in a batch mode at room temperature (25 ± 2°C) and agitation speed of 100 rpm to determine the influence of biosorbent dose, contact time, Cr(VI) concentration, and initial solution pH. It was found that equilibrium was attained in 50 min. A pseudo-first-order model suited well than a pseudo-second-order model. Biosorption capacity of Grewia spp. biopolymer increased with increase in concentration and depended on the solution pH. Langmuir and Freundlich models described experimental data very well. These findings showed that Grewia spp. biopolymer can serve as a biosorbent for elimination of Cr(VI) from water.http://dx.doi.org/10.1155/2019/6505731 |
| spellingShingle | G. P. Kofa G. R. Nkoue Ndongo M. B. Kameni Ngounou M. N. Nsoe E. V. Amba S. Ndi Koungou Grewia spp. Biopolymer as Low-Cost Biosorbent for Hexavalent Chromium Removal Journal of Chemistry |
| title | Grewia spp. Biopolymer as Low-Cost Biosorbent for Hexavalent Chromium Removal |
| title_full | Grewia spp. Biopolymer as Low-Cost Biosorbent for Hexavalent Chromium Removal |
| title_fullStr | Grewia spp. Biopolymer as Low-Cost Biosorbent for Hexavalent Chromium Removal |
| title_full_unstemmed | Grewia spp. Biopolymer as Low-Cost Biosorbent for Hexavalent Chromium Removal |
| title_short | Grewia spp. Biopolymer as Low-Cost Biosorbent for Hexavalent Chromium Removal |
| title_sort | grewia spp biopolymer as low cost biosorbent for hexavalent chromium removal |
| url | http://dx.doi.org/10.1155/2019/6505731 |
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