Thermodynamic Investigation of Pb2+ and Cd2+ Ions Absorption from Aqueous Solutions Using Multi-Walled Carbon Nanotubes
Aliasghar Rohani, Aliakbar Bastami, Alireza Shakeri, khashayar Sharifi, Laleh Allahkaram
Current Journal of Applied Science and Technology · pp. 1497–1508 · Published 7 Feb 2014
10.9734/BJAST/2014/8384Abstract
In this study, removal of heavy metal ions including cadmium and lead from wastewater were studied. Adsorption process was carried out using simple multiwalled carbon nanotubes (MWCNT) and functionalized MWCNT with the carboxyl agent (MWCNT-COOH) prepared by CVD (chemical vapor deposition) method with a purity of 95%. Furthermore, the effect of temperature at 27.32, 37 and 47°C on absorption rate was investigated, in terms of the other constant variables such as initial content of metal ions, solution pH, contact time and concentration of carbon nano absorbers. Final content of the metal ions remaining in the solution was measured by atomic absorption spectroscopy (AAS). It was revealed that there is a direct relationship between solution’s temperature and cadmium and lead ions absorption rate on carbon nanotubes. Furthermore, thermodynamic calculations of absorption showed that Gibbs free energy (ΔG) of absorption process by MWCNT-COOH and MWCNT is negative. This result indicating the spontaneous absorption reaction and removal of metal cathion by carbon nanotubes. This reaction is endothermic and Positive ΔH confirms it.
References (12)
- 1 Competitive adsorption of Pb2+, Cu2+ and Cd2+ ions from aqueous solutions by multiwalled carbon nanotubes [DOI]
- 2 Carbon Nanotubes as Superior Sorbent for Dioxin Removal [DOI]
- 3 Adsorption of cadmium(II) from aqueous solution by surface oxidized carbon nanotubes [DOI]
- 4 Lead adsorption on carbon nanotubes [DOI]
- 5 Adsorption of 1,2-dichlorobenzene from water to carbon nanotubes [DOI]
- 6 Adsorption of zinc(II) from water with purified carbon nanotubes [DOI]
- 7 Adsorption of trihalomethanes from water with carbon nanotubes [DOI]
- 8 Removal of Zinc(II) from Aqueous Solution by Purified Carbon Nanotubes: Kinetics and Equilibrium Studies [DOI]
- 9 Helical microtubes of graphitic carbon
- 10 Thermodynamics and kinetics of adsorption of Cu(II) from aqueous solutions onto multi-walled carbon nanotubes [DOI]
- 11 Interactions between transition metals and defective carbon nanotubes [DOI]
- 12 Interaction of some heavy metal ions with single walled carbon nanotube [DOI]
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