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Second or pseudo-second-order model for adsorption kinetics?
Separation Science and Technology, 2021Model of second-order (SO) adsorption kinetics from solutions was described and verified for the adsorption of phenol/lead (II) on samples of natural coal and activated carbon.
Boleslav Taraba, Petra Bulavová
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A Pseudo-Second Order Kinetic Equation for Sorption Processes
Russian Journal of Physical Chemistry A, 2020The problem of substantiating a pseudo-second order equation in the kinetics of sorption processes is considered. A simple way is presented of transforming the Langmuir kinetic equation written for a process within a limited volume into a polynomial relation in the form of the sum of difference terms of first- and second-order kinetic equations.
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A Pseudo Second-Order Kinetic Expression for Dissolution Kinetic Profiles of Solids in Solutions
Industrial & Engineering Chemistry Research, 2010A pseudo second-order kinetic expression was presented to explain the dissolution kinetics of solids in solution. The kinetic constant, initial dissolution rate, and theoretical saturation concentration according to pseudo second-order kinetic expression was defined.
K. Vasanth Kumar +2 more
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Using of “pseudo-second-order model” in adsorption
Environmental Science and Pollution Research, 2013A research paper's contribution exists not only in its originality and creativity but also in its continuity and development for research that follows. However, the author easily ignores it. Citation error and quotation error occurred very frequently in a scientific paper.
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Separation Science and Technology, 2017
ABSTRACTThe kinetics of adsorption in the batch mode is frequently represented by the Lagergren model or the pseudo second-order model. We assess these models in their ability to represent adsorption by comparing them with the predictions of detailed intra-particle diffusion models and also with a variety of experimental data drawn from the literature.
Chi Tien, Bandaru V. Ramarao
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ABSTRACTThe kinetics of adsorption in the batch mode is frequently represented by the Lagergren model or the pseudo second-order model. We assess these models in their ability to represent adsorption by comparing them with the predictions of detailed intra-particle diffusion models and also with a variety of experimental data drawn from the literature.
Chi Tien, Bandaru V. Ramarao
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The real pseudo-second-order rate equation
Industrial Crops and Products, 2014This pseudo second-order model is not correct. In fact, the seudo-second-order kinetic expression for the adsorption sysems of divalent metal ions using sphagnum moss peat has been resented by Ho in 1995 (Ho, 1995). The pseudo-second-order inetic model has a non-linear form qt = qe kt/1 + qekt and four linar forms such as t/qt = 1/kqe + (1/qe)t, 1/qt =
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Characteristics of pseudo-second-order kinetic model for liquid-phase adsorption: A mini-review
Chemical Engineering Journal, 2009Abstract Since the introduction of pseudo-second-order (PSO) model for the description of adsorption kinetics in 1999, it has been widely applied in liquid-phase adsorption systems. An approaching equilibrium factor (Rw) was defined and deduced from the PSO model in this work.
Feng-Chin Wu +3 more
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Kinetic and Pseudo-Second-Order Modeling of Lead Biosorption onto Pine Cone Powder
Industrial & Engineering Chemistry Research, 2010The sorption of lead(II) onto pine cone powder (PCP) and 0.15 mol/L NaOH treated pine cone powder (PCP 0.15), an abundant agricultural waste from the wood industry, was studied to evaluate the effect of NaOH treatment on the kinetics of lead(II) uptake by performing batch kinetic sorption experiments. Batch biosorption kinetics was performed by varying
A. E. Ofomaja +2 more
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New insights into pseudo-second-order kinetic equation for adsorption
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2008Abstract This study looked into the theoretical basis of the most commonly used pseudo-second-order kinetic equation for adsorption. It was demonstrated that the pseudo-second-order kinetic equation for adsorption indeed is in line with the universal rate law for a chemical reaction, while the same principle can also be applied to the pseudo-first ...
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Pseudo-Second-Order Kinetics for the Adsorption of Uranyl Ion onto Peat at Different pH Value
Advanced Materials Research, 2010Batch tests were used to investigate the effects of pH and contact time on the adsorption capability of peat. The results indicate that adsorption of uranyl ions on peat increase with increasing pH from 1 to 5. However it takes longer contact time to reach the adsorption equilibrium with increase of pH from 1 to 5.
Zhi Rong Liu, Qin Qin Tao, Chuan Xi Wen
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