Adsorption in a Centrifugal Field: Basic Dye Adsorption by
Activated Carbon
The adsorption of basic yellow dye on activated carbon from aqueous solutions under a centrifugal
field was explored and interpreted by both a pseudo-first-order mechanism and intraparcticle
diffusion mechanism. The adsorption process, based on the assumption of a pseudo-first-order
mechanism, was developed to estimate the rate constant with the effect of centrifugal force,
initial dye concentration. Also, the rate parameter based on the intraparticle diffusion model
was presented. In addition, the diffusion coefficients were evaluated from both models. The results
showed that the centrifugal force could enhance the rate constant, the rate parameter, and the
diffusion coefficient. Therefore, better mass transfer could be provided with centrifugal force.
Adsorption in a Centrifugal Field: Basic Dye Adsorption by
Activated Carbon
The adsorption of basic yellow dye on activated carbon from aqueous solutions under a centrifugal
field was explored and interpreted by both a pseudo-first-order mechanism and intraparcticle
diffusion mechanism. The adsorption process, based on the assumption of a pseudo-first-order
mechanism, was developed to estimate the rate constant with the effect of centrifugal force,
initial dye concentration. Also, the rate parameter based on the intraparticle diffusion model
was presented. In addition, the diffusion coefficients were evaluated from both models. The results
showed that the centrifugal force could enhance the rate constant, the rate parameter, and the
diffusion coefficient. Therefore, better mass transfer could be provided with centrifugal force.
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