Comments on “Enhanced removal of Cr(VӀ) from aqueous solution by supported ZnO nanoparticles on biochar derived from waste water hyacinth”

A mistake of using pseudo-first-order kinetic equation for testing kinetic parameters of adsorption has been pointed out, as well as inappropriate citations for the adsorption kinetic models. Further, this discussion gives a correct pseudo-first-order kinetic equation and makes a suggestion for citi...

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Bibliographic Details
Published in:Chemosphere (Oxford) 2019-10, Vol.233, p.993-994
Main Author: Huang, Yuan-dong
Format: Article
Language:English
Subjects:
Adsorption
Charcoal
Chromium
Citation
Eichhornia
Hyacinthus
Kinetic model
Kinetics
Nanoparticles
Pseudo-first-order equation
Pseudo-second-order equation
Waste Water
Water Pollutants, Chemical - analysis
Zinc Oxide
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Summary:A mistake of using pseudo-first-order kinetic equation for testing kinetic parameters of adsorption has been pointed out, as well as inappropriate citations for the adsorption kinetic models. Further, this discussion gives a correct pseudo-first-order kinetic equation and makes a suggestion for citing the original papers for the pseudo-second-order and intra-particle diffusion kinetic equations. •A mistake of using pseudo-first-order kinetic model has been pointed out.•A corrected pseudo-first-order kinetic equation is presented.•Inappropriate citations for the adsorption kinetic models have been pointed out.•A suggestion for citing the original papers for the kinetic equations has been made.
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2018.11.062