Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/45639
標題: Comparisons of sorbent cost for the removal of Ni2+ from aqueous solution by carbon nanotubes and granular activated carbon
作者: Lu, C.Y.
盧重興
Liu, C.
Rao, G.P.
關鍵字: carbon nanotubes
granular activated carbon
sorption
desorption
nickel
adsorption
nickel(ii)
ni(ii)
ions
equilibrium
cadmium(ii)
cu(ii)
coal
期刊/報告no:: Journal of Hazardous Materials, Volume 151, Issue 1, Page(s) 239-246.
摘要: The reversibility of Ni2+ sorption by NaOCl oxidized single-walled carbon nanotubes (SWCNTs), multimalled carbon nanotubes (MWCNTs) and granular activated carbon (GAC) was investigated to evaluate their repeated availability performance in water treatment. Under the same conditions, the SWCNTs and MWCNTs possess more Ni2+ sorption capacities and show better reversibility of Ni2+ sorption and less weight loss after being repeated sorption/desorption processes than the GAC, suggesting that they are effective Ni2+ sorbents and can be reused through many cycles of water treatment and regeneration. A statistical analysis on the replacement cost of these sorbents revealed that SWCNTs and MWCNTs can be possibly cost-effective Ni2+ sorbents in water treatment regardless of their high unit cost at the present time. (c) 2007 Elsevier B.V. All rights reserved.
URI: http://hdl.handle.net/11455/45639
ISSN: 0304-3894
文章連結: http://dx.doi.org/10.1016/j.jhazmat.2007.05.078
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