Abstract
A mesoporous activated carbon derived from waste tyres was used to remove a toxic basic dye (malachite green oxalate, or MG) from aqueous solutions. The carbon contains a large volume fraction of mesopores and presents an excellent adsorption capacity of ∼424 mg/g towards MG, which is much higher than a commercial carbon with similar surface area. The adsorption equilibrium and kinetics were found to follow Langmuir equation and second-order kinetics, respectively. The structure of the carbon was characterised and based on which the dye adsorption mechanism was discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 172-177 |
| Number of pages | 6 |
| Journal | Asia-Pacific Journal of Chemical Engineering |
| Volume | 8 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 2013 |
| Externally published | Yes |
ASJC Scopus Subject Areas
- General Chemical Engineering
- Renewable Energy, Sustainability and the Environment
- Waste Management and Disposal
Keywords
- activated carbon
- adsorption
- malachite green oxalate
- waste tyre
- water treatment
