Branched-pore model applied to the adsorption of basic dyes on carbon

McKay, Gordon; Duri, B. Al

doi:10.1016/0255-2701(88)87001-6

Cited by 20 publications

(14 citation statements)

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“…Several studies on dyes adsorption were conducted in order to investigate the influence of carbon structural and surface properties on adsorption effectiveness [4][5][6][7][8][9][10][11][12][13]. Activated carbons are characterized by high specific surface areas and pore volumes, chemical stability, low costs and high affinity towards different solutes.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of dyes on mesoporous carbons

Deryło–Marczewska

Marczewski

Winter

2008

Annales UMCS, Chemistry

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Section: Introductionmentioning

confidence: 99%

Adsorption of dyes on mesoporous carbons

Deryło–Marczewska

Marczewski

Winter

2008

Annales UMCS, Chemistry

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“…This carbon was the same one used earlier in our work on asphaltene uptakes. There have been several dye adsorption studies on activated carbons of this type as reported in the literature (Leyva-Ramos and Geankoplis, 1994, McKay and Al-Duri, 1988, Walker and Weatherley, 2001, Yang and Al-Duri, 2001). …”

Section: Resultsmentioning

confidence: 99%

Hindered Diffusion of Asphaltenes at Elevated Temperature and Pressure

Guin¹,

Emerson²

2001

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During this final time period of the project, work was carried out in two areas. A major amount of effort was devoted to preparation of the final technical report for the project. The data taken on the project were organized and the asphaltenes, solvents, and catalysts used in the diffusional uptake experiments were organized into various systems. Since a large portion of the time for this report was spent on the preparation of the final technical report itself, the executive summary of the final technical report has been included in this semi-annual report as indicative of the effort during this time period. In addition to work on the final technical report for the project, a limited experimental study of dye adsorption into active carbon particles was performed by an undergraduate student in chemical engineering, Mr. Zachery Emerson. The objective of this study was to compare the diffusional uptake performance in two different types of vessels, a stirred glass cell and the tubing microreactor, for a simple dye-water-carbon diffusional uptake system. Due to time limitations, only qualitative conclusions were drawn from this study.

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“…Concentrations of dyes in single-solute, bisolute, and trisolute solutions are found from their optical densities at their respective wavelengths together with the interference constants ( A1 Duri, 1988).…”

Section: Methodsmentioning

confidence: 99%

Multicomponent dye adsorption onto carbon using a solid diffusion mass-transfer model

McKay¹,

Duri²

1991

Ind. Eng. Chem. Res.

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The adsorption of basic dyes onto activated carbon has been studied for single and multicomponent systems. Three single-component systems, one binary dye adsorption system, and one ternary dye adsorption system have been investigated. Equilibria and kinetic studies have been performed and the effects of varying initial dye concentration and carbon mass have been investigated during the kinetic experiments. Prediction of experimental equilibrium data has been performed by use of the ideal adsorbed solute theory, the extended Redlich-Peterson isotherm, and a modified extended Redlich-Peterson isotherm. The predictions from the modified extended Redlich-Peterson isotherm, incorporating an interaction factor, correlated experimental data well and also provided a reasonably simple format that could be incorporated into a kinetic model. The kinetic model developed for agitated batch adsorbers is based on the film solid diffusion model coupled with the modified extended Redlich-Peterson isotherm. Kinetic data for the binary and ternary systems are correlated with experimental data for up to 3 h over a wide range of dye concentrations and carbon masses.

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Branched-pore model applied to the adsorption of basic dyes on carbon

Cited by 20 publications

References 14 publications

Adsorption of dyes on mesoporous carbons

Adsorption of dyes on mesoporous carbons

Hindered Diffusion of Asphaltenes at Elevated Temperature and Pressure

Multicomponent dye adsorption onto carbon using a solid diffusion mass-transfer model

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