1
Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, I. R. Iran
2
Chemical Processes Design Research Group, ACECR, Faculty of Engineering, University of Tehran, Tehran, I. R. Iran
3
Department of Life Sciences Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, I. R. Iran
Abstract
In order to evaluate the adsorption potential of multi-walled carbon nanotubes (MWCNTs) for benzene, toluene and xylenes (BTX), the adsorption capacities of benzene and toluene on two different MWCNTs were measured using a gas-chromatography (GC) and then compared with each other. Fourier transform infrared (FTIR) was employed to investigate the presence of functional groups on the carbon nanotubes surface. The MWCNTs were also characterized by Raman spectroscopy and scanning electron microscopy (SEM) techniques and their specific surface areas were determined using the Brunauer–Emmett–Teller (BET) method. FTIR spectra proved the presence of functional groups on the surface of both two different MWCNTs. Generally, the results revealed that the MWCNTs with larger specific surface area and higher crystallinity have higher adsorption capacities for both benzene and toluene. Moreover, as compared with conventional adsorbents like the activated carbon, the carbon nanotubes have the advantages such as selectivity to aromatic volatile organic compounds such as BTX.
Pourfayaz,F. , Boroun,S. , Babaei,J. and Ebrahimi Hoseinzadeh,B. (2014). An Evaluation of the Adsorption Potential of MWCNTs for Benzene and Toluene Removal. International Journal of Nanoscience and Nanotechnology, 10(1), 27-34.
MLA
Pourfayaz,F. , , Boroun,S. , , Babaei,J. , and Ebrahimi Hoseinzadeh,B. . "An Evaluation of the Adsorption Potential of MWCNTs for Benzene and Toluene Removal", International Journal of Nanoscience and Nanotechnology, 10, 1, 2014, 27-34.
HARVARD
Pourfayaz F., Boroun S., Babaei J., Ebrahimi Hoseinzadeh B. (2014). 'An Evaluation of the Adsorption Potential of MWCNTs for Benzene and Toluene Removal', International Journal of Nanoscience and Nanotechnology, 10(1), pp. 27-34.
CHICAGO
F. Pourfayaz, S. Boroun, J. Babaei and B. Ebrahimi Hoseinzadeh, "An Evaluation of the Adsorption Potential of MWCNTs for Benzene and Toluene Removal," International Journal of Nanoscience and Nanotechnology, 10 1 (2014): 27-34,
VANCOUVER
Pourfayaz F., Boroun S., Babaei J., Ebrahimi Hoseinzadeh B. An Evaluation of the Adsorption Potential of MWCNTs for Benzene and Toluene Removal. International Journal of Nanoscience and Nanotechnology, 2014; 10(1): 27-34.
