Abstract
The effects of particle size (0.5 ∼ 1.0 mm), temperature (30 ∼ 60°C), and solution pH (7 ∼ 9) on the adsorption equilibrium of dye Rhodamine 6G by activated carbon were studied in batch modes. The isotherm data could be well described by the Langmuir equation. Under the ranges tested, a maximum adsorption capacity of 44.7 mg/g was obtained. Batch kinetic parameters such as the Lagergren's rate constant and intraparticle diffusion coefficient of adsorption were determined. It has been shown that the intraparticle diffusion of dye molecules within the adsorbents was identified as the rate-limiting step in the present adsorption process.
| Original language | English |
|---|---|
| Pages (from-to) | 715-725 |
| Journal | Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering |
| Volume | 36 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2001 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Research Keywords
- Activated carbon
- Adsorption
- Equilibrium
- Kinetics
- Rhodamine 6G
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