Dye Adsorption on Expanding Three‐Layer Clays

Depçi̇, Tolga; Çelik, M.S.

doi:10.1002/9781118721001.ch9

Cited by 2 publications

(2 citation statements)

References 104 publications

(151 reference statements)

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“…Several theoretical models describing the mechanism of the adsorption of organic molecules have been proposed [2,3,5,6,9,10,14,142]. Probably, almost all of them were also used in the attempt to describe the adsorption of organic dyes on clay mineral particles.…”

Section: Critical Assessment Of the Adsorption Modelsmentioning

confidence: 99%

“…In addition to the original research papers published in this field, numerous review articles have been published analyzing the adsorption of dye molecules on clay minerals and attempting to systematically organize the knowledge on this subject [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. These attempts have been made to find a system of laws between the nature and structure of the interacting species and the characteristics of the adsorption process.…”

Section: Introductionmentioning

confidence: 99%

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Controversial Issues Related to Dye Adsorption on Clay Minerals: A Critical Review

Bujdák

2023

Molecules

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This critical review points out the most serious and problematic issues to be found in the literature on the adsorption of dyes on clay minerals. The introduction draws attention to the fundamental problems, namely the insufficient characterization of adsorbents, the influence of impurities on the adsorption of dyes, and the choice of inappropriate models for the description of the very complex systems that clay minerals and their systems represent. This paper discusses the main processes accompanying adsorption in colloidal systems of clay minerals. The relationship between the stability of the colloidal systems and the adsorption of dye molecules is analyzed. The usual methodological procedures for determining and evaluating the adsorption of dyes are critically reviewed. A brief overview and examples of modified clay minerals and complex systems for the adsorption of organic dyes are summarized. This review is a guide for avoiding some faults in characterizing the adsorption of organic dyes on clay minerals, to improve the procedure for determining adsorption, to evaluate results correctly, and to find an appropriate theoretical interpretation. The main message of this article is a critical analysis of the current state of the research in this field, but at the same time, it is a guide on how to avoid the most common problems and mistakes.

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