alexa Mechanism of Adsorption of Dyes and Phenols from Water Using Activated Carbons Prepared from Plum Kernels.
Chemical Engineering

Chemical Engineering

Journal of Chemical Engineering & Process Technology

Author(s): Juang RS, Wu FC, Tseng RL

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Abstract The kinetics and mechanism of adsorption of two commercial dyes (BR22, AB25), phenol, and 3-chlorophenol from water on activated carbons were studied at 30 degrees C. The activated carbons were prepared from plum kernels, and the activation temperature and time tested were in the ranges 750-900 degrees C and 1-4 h, respectively. Three simplified kinetic models including a pseudo-first-order, a pseudo-second-order, and an intraparticle diffusion model were tested. It was shown that the adsorption of both phenols could be fitted to a pseudo-second-order rate law, and that of both dyes could be fitted to an intraparticle diffusion model. Kinetic parameters were calculated and correlated with the physical properties of the adsorbents. Copyright 2000 Academic Press. This article was published in J Colloid Interface Sci and referenced in Journal of Chemical Engineering & Process Technology

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