1. Adsorption of methylene blue from aqueous solution onto NaOH-modified rejected tea
- Author
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Norhaslinda Nasuha and B.H. Hameed
- Subjects
Chromatography ,Aqueous solution ,General Chemical Engineering ,Kinetics ,technology, industry, and agriculture ,Langmuir adsorption model ,General Chemistry ,Industrial and Manufacturing Engineering ,chemistry.chemical_compound ,symbols.namesake ,Adsorption ,chemistry ,Monolayer ,symbols ,Environmental Chemistry ,Freundlich equation ,Sorption isotherm ,Methylene blue ,Nuclear chemistry - Abstract
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.
- Published
- 2011
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