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Adsorption of a textile dye from aqueous solutions by carbon nanotubes

Machado, Fernando M. ; Bergmann, Carlos P. ; Lima, Eder C. ; Adebayo, Matthew A. ; Fagan, Solange B.

Materials research (São Carlos, São Paulo, Brazil), 2014-08, Vol.17 (suppl 1), p.153-160 [Periódico revisado por pares]

ABM, ABC, ABPol

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Título:
Adsorption of a textile dye from aqueous solutions by carbon nanotubes
Autor: Machado, Fernando M. ; Bergmann, Carlos P. ; Lima, Eder C. ; Adebayo, Matthew A. ; Fagan, Solange B.
Assuntos: Adsorbents ; Adsorption ; Aqueous solutions ; carbon nanotubes ; Dyes ; ENGINEERING, CHEMICAL ; isotherm models ; Isotherms ; MATERIALS SCIENCE, MULTIDISCIPLINARY ; METALLURGY & METALLURGICAL ENGINEERING ; nonlinear isotherm fitting ; Reactive Blue 4 ; Single wall carbon nanotubes ; Textiles
É parte de: Materials research (São Carlos, São Paulo, Brazil), 2014-08, Vol.17 (suppl 1), p.153-160
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Multi-walled and single-walled carbon nanotubes were used as adsorbents for the removal of Reactive Blue 4 textile dye from aqueous solutions. The adsorbents were characterised using Raman spectroscopy, N sub(2) adsorption/desorption isotherms and scanning and transmission electron microscopy. The effects of pH, agitation time and temperature on adsorption capacity were studied. In the acidic pH region, the adsorption of the dye was favourable using both adsorbents. The contact time to obtain equilibrium isotherms at 298-323 K was fixed at 4 hours for both adsorbents. For Reactive Blue 4 dye, Liu isotherm model gave the best fit for the equilibrium data. The maximum sorption capacity for adsorption of the dye occurred at 323 K, attaining values of 502.5 and 567.7 mg g super(-1) for MWCNT and SWCNT, respectively.
Editor: ABM, ABC, ABPol
Idioma: Inglês;Português;Espanhol

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Adsorption of a textile dye from aqueous solutions by carbon nanotubes

Machado, Fernando M. ; Bergmann, Carlos P. ; Lima, Eder C. ; Adebayo, Matthew A. ; Fagan, Solange B.

ABM, ABC, ABPol

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