Removal of Methyl Violet Dye from Aqueous Solution bysf Platanus CarpinifoliaTree Leaves as Highly Efficient Sorbent: Multivariate Optimization, Isotherm Modeling, and Kinetic Studies
| Autor: | Fateme Gholami, Gholamhasan Azimi, Javad Zolgharnein, Peyman Zolgharnein, Neda Asanjarani |
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| Rok vydání: | 2014 |
| Předmět: |
Langmuir
Aqueous solution Sorbent Chromatography Process Chemistry and Technology General Chemical Engineering Biosorption Methyl violet Langmuir adsorption model Filtration and Separation General Chemistry chemistry.chemical_compound symbols.namesake Adsorption chemistry symbols Freundlich equation Nuclear chemistry |
| Zdroj: | Separation Science and Technology. 49:752-762 |
| ISSN: | 1520-5754 0149-6395 |
| DOI: | 10.1080/01496395.2013.862547 |
| Popis: | This study introduces a novel and highly efficient biosorbent called Platanus Carpinifolia tree leaves to remove Methyl violet from aqueous solution. A Box-Behnken design of experiment based on three main factors (initial concentration ( C d ), sorbent amount (S), and pH) through the response surface methodology approach was chosen to model the removal efficiency (R%) of Methyl violet. The optimum conditions were found from the obtained model as C d = 500 mg/L and S = 0.11 g/L with no pH significant influences. Langmuir, Freundlich, and Temkin isotherms were applied to scrutinize the equilibrium aspect of biosorption by fitting the adsorption experimental data with isotherms. The adsorbent's maximum capacity uptake ( q max ) was obtained to be 555.5 mg/g from the Langmuir model, which has shown better description of the equilibrium process. Kinetic of biosorption was studied with making use of the pseudo-first order and pseudo-second order models along with intra-particle diffusion. The results showed tha... |
| Databáze: | OpenAIRE |
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