Russian Journal of Physical Chemistry A, volume 94, issue 1, pages 171-176

A Pseudo-Second Order Kinetic Equation for Sorption Processes

Khamizov R.Kh. ¹

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Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, moscow, Russia |

Publication type: Journal Article

Publication date: 2020-01-01

Pleiades Publishing

Journal: Russian Journal of Physical Chemistry A

Quartile SCImago

Quartile WOS

Impact factor: 0.7

ISSN: 00360244, 1531863X

DOI: 10.1134/S0036024420010148

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Physical and Theoretical Chemistry

Abstract

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. It is shown that such a relation is reduced to a good approximation of a pseudo-second order equation over a much wider range of conditions determined by the equilibrium and kinetic characteristics of the sorbent and the experimental parameters than was predicted earlier. It is established that the errors of such a theoretical approximation are either negligible or do not exceed the corresponding errors at the initial stage of kinetic experiments within a confined space. It is concluded that the applicability of the pseudo-second order model is independent of the mechanisms determining the rate of sorption and does not require concepts of chemisorption or special equations of kinetics controlled via chemical reactions or diffusion.

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Citations by journals

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Wiley	Wiley, 3, 7.32% Wiley 3 publications, 7.32%
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American Chemical Society (ACS)	American Chemical Society (ACS), 1, 2.44% American Chemical Society (ACS) 1 publication, 2.44%
Frontiers Media S.A.	Frontiers Media S.A., 1, 2.44% Frontiers Media S.A. 1 publication, 2.44%
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IWA Publishing	IWA Publishing, 1, 2.44% IWA Publishing 1 publication, 2.44%
	5 10 15 20 25

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Khamizov R. A Pseudo-Second Order Kinetic Equation for Sorption Processes // Russian Journal of Physical Chemistry A. 2020. Vol. 94. No. 1. pp. 171-176.

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Khamizov R. A Pseudo-Second Order Kinetic Equation for Sorption Processes // Russian Journal of Physical Chemistry A. 2020. Vol. 94. No. 1. pp. 171-176.

RIS |

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RIS Copy

TY - JOUR

DO - 10.1134/S0036024420010148

UR - https://doi.org/10.1134%2FS0036024420010148

TI - A Pseudo-Second Order Kinetic Equation for Sorption Processes

T2 - Russian Journal of Physical Chemistry A

AU - Khamizov, R.Kh.

PY - 2020

DA - 2020/01/01 00:00:00

PB - Pleiades Publishing

SP - 171-176

IS - 1

VL - 94

SN - 0036-0244

SN - 1531-863X

ER -

BibTex |

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BibTex Copy

@article{2020_Khamizov,

author = {R.Kh. Khamizov},

title = {A Pseudo-Second Order Kinetic Equation for Sorption Processes},

journal = {Russian Journal of Physical Chemistry A},

year = {2020},

volume = {94},

publisher = {Pleiades Publishing},

month = {jan},

url = {https://doi.org/10.1134%2FS0036024420010148},

number = {1},

pages = {171--176},

doi = {10.1134/S0036024420010148}

}

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MLA Copy

Khamizov, R.Kh.. “A Pseudo-Second Order Kinetic Equation for Sorption Processes.” Russian Journal of Physical Chemistry A, vol. 94, no. 1, Jan. 2020, pp. 171-176. https://doi.org/10.1134%2FS0036024420010148.

Found error?

Publisher

Pleiades Publishing

Journal

Russian Journal of Physical Chemistry A

Quartile SCImago

Quartile WOS

Impact factor

0.7

ISSN

00360244 (Print)
1531863X (Electronic)

Labs

Laboratory of Sorption methods

Profiles

Khamizov, Ruslan K