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Competitive Adsorption of Phenols on GAC. I: Adsorption Equilibrium
Journal of Environmental Engineering, 1993The impact of the presence of molecular oxygen on multicomponent adsorption is evaluated in this study. Adsorption equilibria for binary mixtures of phenol/o‐cresol and ternary mixtures of phenol/o‐cresol/3‐ethylphenol on granular activated carbon (GAC) are determined at 23°C using three different initial‐concentration combinations.
George A. Sorial +3 more
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Adsorption studies using gas-liquid chromatography—II. Competitive adsorption
Water Research, 1977Abstract Gas-liquid chromatography with a flame ionization detector system using the direct injection of aqueous solutions was used to monitor the adsorption of selected organic compounds dissolved in water onto activated carbon. The effects of competitive adsorption in batch (agitated flask) and column (flow through packed bed) systems were ...
R.J. Martin, K.S. Al-Bahrani
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Phosphate and sulfate adsorption on goethite: Single anion and competitive adsorption
Geochimica et Cosmochimica Acta, 1997Abstract The adsorption of phosphate and sulfate on goethite is studied individually and in combination at solution concentrations of phosphate ranging from 10 −8 to 10 −4 M and of sulfate ranging from 10 −5 to 10 −3 M. For single anion adsorption the influence of pH, ionic strength, and anion:goethite ratio was determined.
Geelhoed, J.S. +2 more
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Competitive Adsorption on Diatomaceous Earth Particles
2019 Advances in Science and Engineering Technology International Conferences (ASET), 2019Diatomaceous earth (DE) was modified with octadecyltrimethoxysilane (C18-TMS) in the presence of p-toluenesulfonic acid (PTSA) as an acid catalyst. However, in the presence of a non-volitile acid catalyst, the determination of the adsorbed amount of the C18-TMS is complicated.
Helanka J. Perera, Frank D. Blum
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Thyroglobulin detection using competitive protein adsorption
2010 IEEE 23rd International Conference on Micro Electro Mechanical Systems (MEMS), 2010We report a unique sensing mechanism based on competitive proteins' adsorption/exchange reaction, namely Vroman effect, for detecting a cancer biomarker, thyroglobulin (Tg). Implemented in a microfluidic system, the target protein, Tg, displaces a pre-adsorbed weak-affinity protein, IgG, on one surface, while a pre-adsorbed strong-affinity protein ...
Seokheun Choi, Junseok Chae
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Competitive protein adsorption at phospholipid surfaces
Colloids and Surfaces B: Biointerfaces, 1995Abstract The interfacial exchange processes between human serum albumin (HSA) and fibrinogen on different surfaces was investigated with in situ ellipsometry and total internal reflectance fluorescence (TIRF) spectroscopy. With ellipsometry, it was found that the total absorbed amount on silica on the addition of fibrinogen after the preadsorption of
Martin Malmsten, Bo Lassen
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Compensation effect associated with multisite adsorption and competition for adsorption
Bulletin des Sociétés Chimiques Belges, 1979AbstractAccording to a model of “landing site” for chemisorption of alkanes on metal in presence of H2, previously published, the hydrocarbon adsorption rate is proportional to a function G of the H coverage (ΘH). The observed variations with H2 pressure and temperature range of the temperature factor affecting the adsorption rate of CH4 and C2H6 may ...
L. Degols +3 more
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A simplified competitive equilibrium adsorption model
Chemical Engineering Science, 1978Abstract Adsorption equilibria in liquid multicomponent systems are an essential part of the description of the adsorption behaviour in adsorber beds. This work presents a simplified model for the prediction of competitive adsorption equilibria, only with single-solute data in the interesting concentration range.
F.A. Digiano +3 more
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Macromolecules, 1992
Kinetics and isotherms of individual and binary mixture of various monodisperse polystyrenes on three porous silica surfaces were investigated in cyclohexane and CCl 4 as a function of the ratio of the pore size to twice the radius of gyration of a PS chain in a bulk ...
Masami Kawaguchi +3 more
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Kinetics and isotherms of individual and binary mixture of various monodisperse polystyrenes on three porous silica surfaces were investigated in cyclohexane and CCl 4 as a function of the ratio of the pore size to twice the radius of gyration of a PS chain in a bulk ...
Masami Kawaguchi +3 more
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Competitive adsorption behavior of heavy metals on kaolinite
Journal of Colloid and Interface Science, 2005Polluted and contaminated soils can often contain more than one heavy metal species. It is possible that the behavior of a particular metal species in a soil system will be affected by the presence of other metals. In this study we have investigated the adsorption of Cd(II), Cu(II), Pb(II), and Zn(II) onto kaolinite in single- and multi-element systems
Srivastava, Prashant. +2 more
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