CRYSTAL VIOLET ADSORPTION ONTO KOLANUT POD HUSK ACTIVATED CARBON; ISOTHERM, KINETIC, AND THERMODYNAMICS STUDIES

Nwodika Chekwube; Onukwuli Okechukwu Domınıc

CRYSTAL VIOLET ADSORPTION ONTO KOLANUT POD HUSK ACTIVATED CARBON; ISOTHERM, KINETIC, AND THERMODYNAMICS STUDIES

Abstract

The adsorption of crystal violet (CV) dye onto kola nut husk based activated carbon (KPAC) was carried out in this work. The effects of various reaction parameters such as contact time, initial pH, initial CV concentration, adsorbent dosage and solution temperature were investigated. The sorption of CV dye on KPAC was found to increase with increase in initial dye concentration, passed through a maximum as function of pH (at pH 8), and decreased with increase in temperature. The adsorption equilibrium data were best represented with the Langmuir model. Kinetic studies revealed that the adsorption data fit well to the pseudo-second-order model with high correlation coefficient. The apparent energy of adsorption (E) of CV using KPAC is 11.323kJmol-1. The Thermodynamic properties showed that adsorption of CV onto KPAC was exothermic, spontaneous and feasible with a decrease in the degree of freedom of the adsorbed species in the temperature range 303-333K. The KPAC can be used as effective and low cost adsorbent for the removal of CV dye from aqueous solution.

Keywords

References

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Details

Primary Language

English

Subjects

Engineering

Journal Section

Research Article

Authors

Nwodika Chekwube This is me
0000-0002-2301-374X
Nigeria

Onukwuli Okechukwu Domınıc This is me
Nigeria

Publication Date

September 1, 2017

Submission Date

January 20, 2017

Acceptance Date

April 19, 2017

Published in Issue

Year 2017 Volume: 35 Number: 3

IZ

https://izlik.org/JA79EX22EB

Cite

RIS / Bibtex

APA

Chekwube, N., & Domınıc, O. O. (2017). CRYSTAL VIOLET ADSORPTION ONTO KOLANUT POD HUSK ACTIVATED CARBON; ISOTHERM, KINETIC, AND THERMODYNAMICS STUDIES. Sigma Journal of Engineering and Natural Sciences, 35(3), 411-426. https://izlik.org/JA79EX22EB

AMA

1.Chekwube N, Domınıc OO. CRYSTAL VIOLET ADSORPTION ONTO KOLANUT POD HUSK ACTIVATED CARBON; ISOTHERM, KINETIC, AND THERMODYNAMICS STUDIES. SIGMA. 2017;35(3):411-426. https://izlik.org/JA79EX22EB

Chicago

Chekwube, Nwodika, and Onukwuli Okechukwu Domınıc. 2017. “CRYSTAL VIOLET ADSORPTION ONTO KOLANUT POD HUSK ACTIVATED CARBON; ISOTHERM, KINETIC, AND THERMODYNAMICS STUDIES”. Sigma Journal of Engineering and Natural Sciences 35 (3): 411-26. https://izlik.org/JA79EX22EB.

EndNote

Chekwube N, Domınıc OO (September 1, 2017) CRYSTAL VIOLET ADSORPTION ONTO KOLANUT POD HUSK ACTIVATED CARBON; ISOTHERM, KINETIC, AND THERMODYNAMICS STUDIES. Sigma Journal of Engineering and Natural Sciences 35 3 411–426.

IEEE

[1]N. Chekwube and O. O. Domınıc, “CRYSTAL VIOLET ADSORPTION ONTO KOLANUT POD HUSK ACTIVATED CARBON; ISOTHERM, KINETIC, AND THERMODYNAMICS STUDIES”, SIGMA, vol. 35, no. 3, pp. 411–426, Sept. 2017, [Online]. Available: https://izlik.org/JA79EX22EB

ISNAD

Chekwube, Nwodika - Domınıc, Onukwuli Okechukwu. “CRYSTAL VIOLET ADSORPTION ONTO KOLANUT POD HUSK ACTIVATED CARBON; ISOTHERM, KINETIC, AND THERMODYNAMICS STUDIES”. Sigma Journal of Engineering and Natural Sciences 35/3 (September 1, 2017): 411-426. https://izlik.org/JA79EX22EB.

JAMA

1.Chekwube N, Domınıc OO. CRYSTAL VIOLET ADSORPTION ONTO KOLANUT POD HUSK ACTIVATED CARBON; ISOTHERM, KINETIC, AND THERMODYNAMICS STUDIES. SIGMA. 2017;35:411–426.

MLA

Chekwube, Nwodika, and Onukwuli Okechukwu Domınıc. “CRYSTAL VIOLET ADSORPTION ONTO KOLANUT POD HUSK ACTIVATED CARBON; ISOTHERM, KINETIC, AND THERMODYNAMICS STUDIES”. Sigma Journal of Engineering and Natural Sciences, vol. 35, no. 3, Sept. 2017, pp. 411-26, https://izlik.org/JA79EX22EB.

Vancouver

1.Nwodika Chekwube, Onukwuli Okechukwu Domınıc. CRYSTAL VIOLET ADSORPTION ONTO KOLANUT POD HUSK ACTIVATED CARBON; ISOTHERM, KINETIC, AND THERMODYNAMICS STUDIES. SIGMA [Internet]. 2017 Sep. 1;35(3):411-26. Available from: https://izlik.org/JA79EX22EB