%0 Journal Article
%T Benzene and Toluene Removal by Carbon Nanotubes from Aqueous Solution
%A Bijan Bina
%A Mohammad Mehdi Amin
%A Alimorad Rashidi
%A Hamidreza Pourzamani
%J Archives of Environmental Protection
%@ 2083-4810
%D 2012
%I 
%R 10.2478/v10265-012-0001-0
%X The removal of benzene (B) and toluene (T) from aqueous solution by multi walled, single walled, and hybrid carbon nanotubes (MWCNTs, SWCNTs, and HCNTs) was evaluated for a nanomaterial dose of 1 g/l, concentration of 10-100 mg/l, and pH 7. The equilibrium amount removed by SWCNTs (B: 9.98 mg/g and T: 9.96 mg/g) was higher than for MWCNTs and HCNTs. Toluene has a higher adsorption tendency on CNTs than benzene, which is related to the increasing water solubility and the decreasing molecular weight of the compounds. The SWCNTs performed better for B and T sorption than the MWCNTs and HCNTs. Isotherms study based on isofit program indicate that the Generalized Langmuir-Freundlich (GLF) isotherm expression provides the best fit for benzene sorption, and that Brunauer-Emmett-Teller (BET) isotherm is the best fit for toluene adsorption by SWCNT. SWCNTs are efficient B and T adsorbents and possess good potential applications to water and wastewater treatment and maintain water of high quality that could be used for cleaning up environmental pollution.
%K Benzene
%K carbon nanotube
%K isofit
%K toluene
%U http://versita.metapress.com/content/531631538314257j/?p=160acd3ba9234a68b57e2615e103749d&pi=0