Equilibrium, kinetics, mechanism, and process design for the sorption of methylene blue onto rice husk
01 Jun 2005-Journal of Colloid and Interface Science (J Colloid Interface Sci)-Vol. 286, Iss: 1, pp 90-100
TL;DR: Analysis of sorption data using a Boyd plot confirms that external mass transfer is the rate limiting step in the sorption process.
About: This article is published in Journal of Colloid and Interface Science.The article was published on 2005-06-01. It has received 1455 citations till now. The article focuses on the topics: Sorption & Freundlich equation.
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TL;DR: An extensive list of various adsorbents such as natural materials, waste materials from industry, agricultural by-products, and biomass based activated carbon in the removal of various dyes has been compiled here.
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TL;DR: In this paper, the use of agricultural solid wastes to remove two classes of dye, cationic and anionic dyes, was discussed and a simple comparison among cationi-and anionic dye adsorption by the same adsorbent was made, thus possibly opening the door for a better understanding of the dye-classified adaption process.
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TL;DR: In this paper, the use of wheat shells for the removal of methylene blue from aqueous solutions at different contact times, temperatures, pH, adsorbent doses and initial dye concentration was investigated.
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TL;DR: Kinetic study showed that the adsorption of dye on coir pith carbon was a gradual process and pH effect and desorption studies suggest that chemisorption might be the major mode of the Adsorption process.
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2,298 citations
TL;DR: In this paper, three basic dyes, namely, Chrysoidine, Astrazon Blue, and Astrazone Blue, were applied to sphagnum moss peat.
Abstract: The kinetics of sorption of three basic dyes, namely, Chrysoidine (BO2), Astrazon Blue (BB3) and Astrazone Blue (BB69) onto sphagnum moss peat have been investigated. The study focuses on the application of three sorption kinetic models for predicting the uptake of basic dyes. The sorption behaviour is found to be second order, based on the assumption of a pseudo-second order mechanism. The rate constant of sorption, the equilibrium capacity and initial sorption rate with the effect of various peat doses and initial dye concentrations have also been predicted.
822 citations
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