In this study, the application of ground coconut husk GCH for removal of Cr (VI) from its aqueous solution was investigated. Several batch experiments were carried out with different values of test conditions including sorbent concentration, contact time, temperature and pH. The results obtained showed that adsorption of Cr (VI) followed Freundlich isotherm model. Dubinin-Radushkevich isotherm revealed that adsorption of the three metal ions principally followed chemical adsorption process. Adsorption kinetics was best described by pseudo-second order. Thermodynamic studies revealed that adsorption of Cr (VI) were endothermic process since ∆H was positive. Adsorption of Cr (VI) was spontaneous as evident from the negative value ∆G. Uptake of metal ion from their aqueous solution increases with increase in pH but decreases slightly at pH of 8.
| Published in | International Journal of Biochemistry, Biophysics & Molecular Biology (Volume 3, Issue 2) |
| DOI | 10.11648/j.ijbbmb.20180302.13 |
| Page(s) | 38-44 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2018. Published by Science Publishing Group |
Chromium (VI), Adsorption, Coconut Husk
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APA Style
Egwuatu Chinyelu Ijeamaka, Odebeatu Chinonso Christian, Obumselu Onyeka Fabian, Iloamaeke Ifeoma MaryJane, Kammeje Tochukwu Joseph. (2018). Isotherm Studies of Adsorption of Cr (Vi) Ions onto Coconut Husk. International Journal of Biochemistry, Biophysics & Molecular Biology, 3(2), 38-44. https://doi.org/10.11648/j.ijbbmb.20180302.13
ACS Style
Egwuatu Chinyelu Ijeamaka; Odebeatu Chinonso Christian; Obumselu Onyeka Fabian; Iloamaeke Ifeoma MaryJane; Kammeje Tochukwu Joseph. Isotherm Studies of Adsorption of Cr (Vi) Ions onto Coconut Husk. Int. J. Biochem. Biophys. Mol. Biol. 2018, 3(2), 38-44. doi: 10.11648/j.ijbbmb.20180302.13
AMA Style
Egwuatu Chinyelu Ijeamaka, Odebeatu Chinonso Christian, Obumselu Onyeka Fabian, Iloamaeke Ifeoma MaryJane, Kammeje Tochukwu Joseph. Isotherm Studies of Adsorption of Cr (Vi) Ions onto Coconut Husk. Int J Biochem Biophys Mol Biol. 2018;3(2):38-44. doi: 10.11648/j.ijbbmb.20180302.13
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Download@article{10.11648/j.ijbbmb.20180302.13,
author = {Egwuatu Chinyelu Ijeamaka and Odebeatu Chinonso Christian and Obumselu Onyeka Fabian and Iloamaeke Ifeoma MaryJane and Kammeje Tochukwu Joseph},
title = {Isotherm Studies of Adsorption of Cr (Vi) Ions onto Coconut Husk},
journal = {International Journal of Biochemistry, Biophysics & Molecular Biology},
volume = {3},
number = {2},
pages = {38-44},
doi = {10.11648/j.ijbbmb.20180302.13},
url = {https://doi.org/10.11648/j.ijbbmb.20180302.13},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijbbmb.20180302.13},
abstract = {In this study, the application of ground coconut husk GCH for removal of Cr (VI) from its aqueous solution was investigated. Several batch experiments were carried out with different values of test conditions including sorbent concentration, contact time, temperature and pH. The results obtained showed that adsorption of Cr (VI) followed Freundlich isotherm model. Dubinin-Radushkevich isotherm revealed that adsorption of the three metal ions principally followed chemical adsorption process. Adsorption kinetics was best described by pseudo-second order. Thermodynamic studies revealed that adsorption of Cr (VI) were endothermic process since ∆H was positive. Adsorption of Cr (VI) was spontaneous as evident from the negative value ∆G. Uptake of metal ion from their aqueous solution increases with increase in pH but decreases slightly at pH of 8.},
year = {2018}
}
TY - JOUR T1 - Isotherm Studies of Adsorption of Cr (Vi) Ions onto Coconut Husk AU - Egwuatu Chinyelu Ijeamaka AU - Odebeatu Chinonso Christian AU - Obumselu Onyeka Fabian AU - Iloamaeke Ifeoma MaryJane AU - Kammeje Tochukwu Joseph Y1 - 2018/08/23 PY - 2018 N1 - https://doi.org/10.11648/j.ijbbmb.20180302.13 DO - 10.11648/j.ijbbmb.20180302.13 T2 - International Journal of Biochemistry, Biophysics & Molecular Biology JF - International Journal of Biochemistry, Biophysics & Molecular Biology JO - International Journal of Biochemistry, Biophysics & Molecular Biology SP - 38 EP - 44 PB - Science Publishing Group SN - 2575-5862 UR - https://doi.org/10.11648/j.ijbbmb.20180302.13 AB - In this study, the application of ground coconut husk GCH for removal of Cr (VI) from its aqueous solution was investigated. Several batch experiments were carried out with different values of test conditions including sorbent concentration, contact time, temperature and pH. The results obtained showed that adsorption of Cr (VI) followed Freundlich isotherm model. Dubinin-Radushkevich isotherm revealed that adsorption of the three metal ions principally followed chemical adsorption process. Adsorption kinetics was best described by pseudo-second order. Thermodynamic studies revealed that adsorption of Cr (VI) were endothermic process since ∆H was positive. Adsorption of Cr (VI) was spontaneous as evident from the negative value ∆G. Uptake of metal ion from their aqueous solution increases with increase in pH but decreases slightly at pH of 8. VL - 3 IS - 2 ER -
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