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Ethylbenzene Removal by Carbon Nanotubes From Aqueous Solution Publisher Pubmed



Bina B1 ; Pourzamani H2 ; Rashidi A3 ; Amin MM1
Authors
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Authors Affiliations
  1. 1. Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Gas Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran

Source: Journal of Environmental and Public Health Published:2012


Abstract

The removal of ethylbenzene (E) from aqueous solution by multiwalled, single-walled, and hybrid carbon nanotubes (MWCNTs, SWCNTs, and HCNTs) was evaluated for a nanomaterial dose of 1g/L, concentration of 10-100mg/L, and pH 7. The equilibrium amount removed by SWCNTs (E: 9.98mg/g) was higher than by MWCNTs and HCNTs. Ethylbenzene has a higher adsorption tendency on CNTs, so that more than 98% of it adsorbed in first 14min, which is related to the low water solubility and the high molecular weight. The SWCNTs performed better for ethylbenzene sorption than the HCNTs and MWCNTs. Isotherms study indicates that the BET isotherm expression provides the best fit for ethylbenzene sorption by SWCNTs. Carbon nanotubes, specially SWCNTs, are efficient and rapid adsorbents for ethylbenzene which possess good potential applications to maintain high-quality water. Therefore, it could be used for cleaning up environmental pollution to prevent ethylbenzene borne diseases. © 2012 Bijan Bina et al.
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