Journal
CHEMICAL ENGINEERING JOURNAL
Volume 166, Issue 2, Pages 783-786Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2010.11.012
Keywords
Modified rejected tea; Methylene blue; Adsorption; Isotherm; Kinetics
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Funding
- Universiti Sains Malaysia [1001/PJKIMIA/814003]
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In this work, the removal of a basic dye, methylene blue (MB) from aqueous solution using NaOH-modified rejected tea (N-RT) was investigated. Equilibrium adsorption and kinetics were studied. The results confirmed that the adsorption isotherm data fitted well to Langmuir isotherm with monolayer adsorption capacity of 242.11 mg/g. The kinetics of MB adsorption process was found to follow pseudo-second-order rate expression. The results suggested that the N-RT would be an excellent alternative for the removal of MB by adsorption process. (C) 2010 Elsevier B.V. All rights reserved.
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