Results 251 to 260 of about 14,817,441 (297)

KOH-activated biochar derived from <i>Pinus brutia</i> wildfire residues for efficient sulfamethoxazole removal: adsorption mechanisms and process optimization. [PDF]

RSC Adv
Erden L.
europepmc   +1 more source

Room-Temperature Synthesis of Anionic Covalent Organic Framework Monolithic Materials for Efficient Capturing of Berberine Hydrochloride. [PDF]

J Sep Sci
Zhao X, Zhang Z, Zhang J, Qin Z, Yan L, Yang X, Wu W, Zhang L, Wu R.   +8 more
europepmc   +1 more source

Pseudo-second order model for sorption processes

Process Biochemistry, 1999
A literature review of the use of sorbents and biosorbents to treat polluted aqueous effluents containing dyes:organics or metal ions has been conducted. Over 70 systems have been reported since 1984 and over 43 of these reported the mechanism as being a pseudo-first order kinetic mechanism. Three sorption kinetic models are presented in this paper and
Y S Ho
exaly   +4 more sources

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Second or pseudo-second-order model for adsorption kinetics?

Separation Science and Technology, 2021
Model 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
openaire   +1 more source

On the comparison of pseudo-first order and pseudo-second order rate laws in the modeling of adsorption kinetics [PDF]

Chemical Engineering Journal, 2016
In most works in the current literature about liquid/solid adsorption kinetics, the respective abilities of pseudo-first order and pseudo-second kinetics for describing the data are compared. In nearly all cases, it is concluded that the latter surpasses the former.
Jean-Pierre Simonin
exaly   +3 more sources

Critical of linear and nonlinear equations of pseudo-first order and pseudo-second order kinetic models

Karbala International Journal of Modern Science, 2018
Abstract The experimental adsorption equilibrium of Cd(II) onto chitosan (Cd(II)/CS) and methyl orange onto bentonite (MO/Bt) were studied in batch adsorption experiments at room temperature for an initial concentration of 236.5 mg/L for Cd (II) (pH = 5) and 33 mg/L for MO (pH = 3).
Hamou Moussout, Ahlafi Hammou, Mustapha AAZZA   +2 more
exaly   +2 more sources

On the use of linearized pseudo-second-order kinetic equations for modeling adsorption systems

Desalination, 2010
Abstract Simulated pseudo-second-order kinetic adsorption data were analyzed by different methods of least-squares regression. The methods used were non-linear regression and four linearized forms of the pseudo-second-order equation. The simulated data were compromised with three different homoskedastic and heteroskedastic error distributions. In the
Yuh-Shan Ho
exaly   +2 more sources

Adsorption kinetics at solid/aqueous solution interfaces: On the boundaries of the pseudo-second order rate equation

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2020
Abstract The empirical pseudo-second order rate equation has become the equation of choice to account for adsorption kinetics at solid/aqueous solution interfaces. However, its validity boundaries still remain faint. Here, they are set on the basis of the predictions of the well-established Langmuir model, cast in terms of the relevant kinetic ...
Alberto E Regazzoni
exaly   +2 more sources

A Pseudo-Second Order Kinetic Equation for Sorption Processes

Russian Journal of Physical Chemistry A, 2020
The 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.
openaire   +1 more source

A Pseudo Second-Order Kinetic Expression for Dissolution Kinetic Profiles of Solids in Solutions

Industrial & Engineering Chemistry Research, 2010
A 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, Issam A. Khaddour, Vinod K. Gupta   +2 more
openaire   +1 more source