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Wang, P. H.; Liu, J.; Zho, J.; Xu, Cui

doi:10.1023/a:1018527001812

Cited by 8 publications

(1 citation statement)

References 4 publications

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“…The specific surface area was found to be 1008.4 m 2 /g, which is comparable to other values published in the literature for the surface area of activated carbons although it does not represent the highest end of the scale which can be up to 3144 m 2 /g (Gao et al 2010). Reported literature values for the surface areas of activated carbons include 483-684 m 2 /g (Sabio et al 2004), 383-815 m 2 /g (Wang et al 1997 2004reportedly had a surface area of 900 m 2 /g. We recognise that the physical characteristics of activated carbon are dependent upon the method of production.…”

Section: Materials and Apparatusmentioning

confidence: 99%

The Influence of Stirring upon the Adsorption of a Cationic Surfactant onto Activated Carbon Particles

Stevenson

Shaw

Tulloch

et al. 2011

Adsorption Science & Technology

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The adsorption rate of the cationic surfactant cetyl trimethylammonium bromide (CTAB) onto particles of activated carbon has been determined from measurements of the changes in the conductivity of the supernatant solution. This technique exhibited a high sampling frequency which enabled detailed analysis of the adsorption kinetics. It was demonstrated that the adsorption rate was generally positively correlated with the stirring rate, although the effect was small. The adsorption rate could be modelled by 1.3-order kinetic equations; first-order kinetic treatment only approximately described the process, but gave a better description than second-order kinetics. The hypothesis that adsorption was controlled by the intra-particle diffusion mechanism was not supported by the data. In addition, the technique enabled the construction of adsorption isotherms of ionic surfactants onto particles. In this case, the adsorption equilibrium was described by a Langmuir isotherm.

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Section: Materials and Apparatusmentioning

confidence: 99%