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Jackfruit seed as a sustainable adsorbent for the removal of Rhodamine B dye

Journal of Environment & Biotechnology Research, Vol. 4, No. 1, Pages 7-16, July 2016

Muhammad Raziq Rahimi Kooh, Muhammad Khairud Dahri, Linda B. L. Lim

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ABSTRACT

Jackfruit seed (JS) was used in this study to investigate its potential as an adsorbent to remove rhodamine B (RB) dye from aqueous solution. Surface morphology and functional group analyses were carried out to characterise the adsorbent. Experimental parameters such as contact time, temperature, adsorbent dosage, dye concentration, medium pH and ionic strength were studied to explore their effects on the adsorption of RB dye onto the adsorbent. Thermodynamics, kinetics and isotherm models were applied on the experimental data in order to further understand the adsorption process and mechanism. The Langmuir and Sips models best described the adsorption process with predicted maximum adsorption capacity of 26.4 and 37.9 mg/g, respectively. The pseudo-second-order model best fitted the kinetics model and thermodynamics studies revealed adsorption process is endothermic.
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Journal of Environment and Biotechnology Research
Volume 4, Number 1, 2016, pp. 7-16
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