Journal
CHEMICAL PHYSICS LETTERS
Volume 350, Issue 5-6, Pages 412-416Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0009-2614(01)01351-3
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A new candidate for fluoride adsorption from water, amorphous Al2O3 supported on carbon nanotubes (Al2O3/CNTs), is reported in this Letter. The adsorption isotherms show that the best fluoride adsorption of Al2O3/CNTs occurs at a pH range of 5.0-9.0. The adsorption capacity for Al2O3/CNTs is about 13.5 times higher than that of AC-300 carbon, 4 times higher than that of gamma-Al2O3 at equilibrium fluoride concentration of 12 mg/l. The broad range of the pH values and high adsorption capacity of Al2O3/CNTs make it very suitable for potential applications in fluoride removal from water. (C) 2001 Elsevier Science B.V. All rights reserved.
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