Adsorption of methylene blue onto activated carbon prepared from Lupinus Albus
The adsorption of methylene blue (MB) from synthetic aqueous solutions in batch experiments using Lupinus Albus-activated carbon (LAAC) by chemical activation with zinc chloride was investigated. Prior to adsorption experiments, surface/physical properties of LAAC were determined using S...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Association of the Chemical Engineers of Serbia
2016-01-01
|
| Series: | Chemical Industry and Chemical Engineering Quarterly |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-9372/2016/1451-93721500030B.pdf |
| Summary: | The adsorption of methylene blue (MB) from synthetic aqueous solutions in
batch experiments using Lupinus Albus-activated carbon (LAAC) by chemical
activation with zinc chloride was investigated. Prior to adsorption
experiments, surface/physical properties of LAAC were determined using
Scanning Electron Microscopy, Fourier transform infrared Spectroscopy and
nitrogen adsorption isotherm. In the adsorption experiments, effects of
adsorption time, solution pH, MB concentration and amount of LAAC were
investigated. The isotherm and kinetic parameters were used to describe the
experimental data. The BET surface area was 1254 m2/g while its total pore
volume was found to be 0.484 cm3/g. Maximum adsorption capacity occurred at
solution pH value 10 and was recorded as 109.89 mg/g. Adsorption data were
modeled using Langmuir, Freundlich and Temkin adsorption isotherms. Langmuir
isotherm and pseudo-second-order models fit to the process and reaction
kinetics correspondingly. |
|---|---|
| ISSN: | 1451-9372 2217-7434 |