Removal of azo dyes from aqueous solutions using calix[4]arene and β-cyclodextrin

Yïlmaz, Aydan; Yılmaz, Emin; Bartsch, Richard A.

doi:10.1016/j.dyepig.2006.01.011

Cited by 90 publications

(38 citation statements)

References 32 publications

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“…They exhibit a high binding capacity and specificity while being non-toxic, stable and renewable. A notable example is represented by calix [4]arenes which have a high removal ability for selected water-soluble azo dyes [36]. Furthermore, biopolymers like starch and chitin are abundant and also modifiable to produce selective and biodegradable compounds like cyclodextrin and chitosan.…”

Section: Waste Water Treatmentmentioning

confidence: 99%

“…The formation of such supramolecular complexes was verified, but a strong pH dependence was found and the whole effect was found to be inferior to the hydrogen bonding. Furthermore, the efficiency of calix [4]arene-based polymers for azo dye sorption was published [36]. Analogously to the cyclodextrin polymers, p-tert-butylcalix [4]arene-based polymers were prepared via condensation of the monomeric building blocks forming oligomeric structures.…”

Section: Sugar-based Polymersmentioning

confidence: 99%

“…The efficient adsorption of anionic azo dyes bearing sulfonate moieties to starch and β-cyclodextrin polymers was reported [35,36]. In the underlying studies, the polymers were prepared by cross-linking of β-cyclodextrin and starch, respectively, with hexamethylene diisocyanate.…”

Section: Sugar-based Polymersmentioning

confidence: 99%

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Polymers and Dyes: Developments and Applications

2015

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Amongst functional macromolecules, the combination of polymers and dyes is a research field of great potential with regard to high-performance materials. Accordingly, colored polymers have become increasingly important as materials for miscellaneous technical applications in recent years while also being a major part of everyday life. For instance, dye-containing polymers are nowadays widely applied in medicine, painting industries, analytics and gas separation processes. Since these applications are obviously connected to the dye's nature, which is incorporated into the corresponding polymers, the affinity of certain polymers to dyes is exploited in wastewater work-ups after (textile) dyeing procedures. In this review, we wish to point out the great importance of dye-containing polymers, with a comprehensive scope and a focus on azo, triphenylmethane, indigoid, perylene and anthraquinone dyes. Since a large number of synthetic approaches towards the preparation of such materials can be found in the literature, an elaborated overview of different preparation techniques is given as well.

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Section: Waste Water Treatmentmentioning

confidence: 99%

Section: Sugar-based Polymersmentioning

confidence: 99%

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Polymers and Dyes: Developments and Applications

2015

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“…Yilmaz et al 100,101 have reported that calix [4]arene-based oligomer 35 ( Figure 23) (Figure 24) that does not require the derivatization of calixarene moiety.…”

Section: Dye -Somentioning

confidence: 99%

Calixarene-Based Receptors for Molecular Recognition

YILMAZ

2013

Turk J Chem

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“…In an imidazolium-based ionic liquid system, acidic dyes were extracted quantitatively [8]. Calix[n]arenes and their derivatives were investigated as extractants for azo dyes [9][10]. It was reported that a calix [4]arene crown oligomer and carboxylic derivatives of calix [8]arene acted as host compounds available for the extraction of azo dyes, because of the fit between the cavity of the cyclic ligand and the guest dye.…”

Section: Introductionmentioning

confidence: 99%

Reversed Micellar Extraction of Methylene Blue by using Di(2-ethylhexyl) Phosphoric Acid

Kinugasa

Hashimoto

Nishii

2015

SERDJ

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The development of efficient methods for the removal of organic dyes, which are considered to be toxic to the aquatic biota and therefore destroy the ecosystem, is required. In this study, the extraction of methylene blue (MB) from aqueous solution into DEHPA/isooctane solution was investigated. MB was hardly extracted at all from the aqueous to the organic phase at pH values below 5, and the extraction ratio of MB greatly increased with increasing pH in the range of 5-6 by the electrostatic attraction between dissociated DEHPA and MB. MB was not extracted to the organic phase at pH values above 6, since DEHPA leaked from the organic to the aqueous phase. The addition of 2-ethyl-1-hexanol suppressed the DEHPA leakage, and then MB was successfully extracted to the organic phase at pH values above 6. It was found that MB was solubilized as an MB-DEHPA complex in the organic phase in the pH range of 5-5.5, whereas MB would be entrapped in the waterpool of the reversed micelle at pH values above 5.5. The back extraction ratio of MB from the organic to the aqueous phase was about 100 % at pH values below 5 because of the destruction of the reversed micelles and the disappearance of the electrostatic attraction between DEHPA and MB.

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Removal of azo dyes from aqueous solutions using calix[4]arene and β-cyclodextrin

Cited by 90 publications

References 32 publications

Polymers and Dyes: Developments and Applications

Polymers and Dyes: Developments and Applications

Calixarene-Based Receptors for Molecular Recognition

Reversed Micellar Extraction of Methylene Blue by using Di(2-ethylhexyl) Phosphoric Acid

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