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2006•Acta Mineralogica SinicaRequires access

STUDY ON ADSORPTION KINETICS OF DIRECT ACID PROOF SCARLET 4BS ONTO PURIFIED PALYGORSKITE FROM AQUEOUS SOLUTIONS

Shaotong Jiang

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Abstract

The adsorption kinetics of purified palygorskite for direct acid proof scarlet 4BS from aqueous solutions was investigated.Kinetics data for the adsorption of direct acid proof scarlet 4BS from aqueous solutions were in good agreement with pseudo-second rate equation within the initial concentration 30—50 mg/L,agitation speed 100—200 r/min and experimental temperature 298—348 K.The results showed that direct acid proof scarlet 4BS was only adsorbed on the external surface of purified palygorskite.The apparent adsorption activation energy is 11.921 kJ/mol.Relatively low apparent adsorption activation energy suggests that the adsorption direct acid proof scarlet 4BS is a type of physical adsorption,which is controlled by film diffusion.

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What this paper is about

The adsorption kinetics of purified palygorskite for direct acid proof scarlet 4BS from aqueous solutions was investigated.Kinetics data for the adsorption of direct acid proof scarlet 4BS from aqueous solutions were in good agreement with pseudo-second rate equation within the initial concentration 30—50 mg/L,agitation speed 100—200 r/min and experimental temperature 298—348 K.The results showed that direct acid proof scarlet 4BS was only adsorbed on the external surface of purified palygorskite.The apparent adsorption activation energy is 11.921 kJ/mol.Relatively low apparent adsorption activation energy suggests that the adsorption direct acid proof scarlet 4BS is a type of physical adsorption,which is controlled by film diffusion.

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Available abstract

The adsorption kinetics of purified palygorskite for direct acid proof scarlet 4BS from aqueous solutions was investigated.Kinetics data for the adsorption of direct acid proof scarlet 4BS from aqueous solutions were in good agreement with pseudo-second rate equation within the initial concentration 30—50 mg/L,agitation speed 100—200 r/min and experimental temperature 298—348 K.The results showed that direct acid proof scarlet 4BS was only adsorbed on the external surface of purified palygorskite.The apparent adsorption activation energy is 11.921 kJ/mol.Relatively low apparent adsorption activation energy suggests that the adsorption direct acid proof scarlet 4BS is a type of physical adsorption,which is controlled by film diffusion.

Key concepts: Palygorskite, Adsorption, Aqueous solution, Chemistry, Kinetics, Activation energy, Diffusion, Chromatography

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STUDY ON ADSORPTION KINETICS OF DIRECT ACID PROOF SCARLET 4BS ONTO PURIFIED PALYGORSKITE FROM AQUEOUS SOLUTIONS — Research Paper | ScholarLens