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The Study of Kinetics and Isotherms of Methylene Blue Adsorption onto Activated Carbon-Loaded Cellulose Composite Bead
| Content Provider | Scilit |
|---|---|
| Author | Sarkar, P. |
| Copyright Year | 2023 |
| Description | A novel adsorbent-activated carbon-loaded cellulose composite bead (AC-CCB) was synthesized by sol-gel conversion for the removal of methylene blue (MB) from an aqueous solution. The adsorbent was characterized by Fourier transform-infrared spectroscopy (FT-IR), field emission scanning electron microscope (FESEM), and X-ray energy dispersive spectroscopy (EDAX). The maximum dye removal was found to be 96.5, 92.3, and 81.8 %, corresponding to MB concentrations of 25, 50, and 100 $mgL^{-1,}$ respectively. Isotherm and the kinetic study were carried out with an AC-CCB dose of 1.0 g $L^{-1}$, a shaking speed of 125 rpm, and the initial MB concentration ranging from 25-100 mg $L^{-1}$. In order to study the kinetics of MB adsorption onto AC-CCB, the temperature was fixed at 298 K, whereas, for the isotherm study, the temperature varied from 298 to 318 K. The process followed pseudo-second-order kinetics with rate constant $(k_{2}$) $28.7x10^{-2}$, $11.1x10^{-2}$ and $9.41x10^{-2}$ $g.mg.min^{-1 }$corresponding to MB concentration of 25, 50 and 100 mg $L^{-1}$. Freundlich, Langmuir, and Sips models were found to fit well with the adsorption data. The negative values and the positive values suggested that the adsorption of MB onto AC-CCB was spontaneous and endothermic. |
| Ending Page | 274 |
| Page Count | 14 |
| Starting Page | 261 |
| ISSN | 20700237 |
| e-ISSN | 20700245 |
| DOI | 10.3329/jsr.v15i1.60717 |
| Journal | Journal of Scientific Research |
| Issue Number | 1 |
| Volume Number | 15 |
| Language | English |
| Publisher | Bangladesh Academy of Sciences |
| Publisher Date | 2023-01-01 |
| Access Restriction | Open |
| Subject Keyword | Paper and Wood |
| Content Type | Text |
| Resource Type | Article |
