Inclusion and removal of pharmaceutical residues from aqueous solution using water-insoluble cyclodextrin polymers

Moulahcene, Lamia; Sarakha, Mohamed; Senhadji, O.; Milon, Nicolas; Benamor, M.; Lahiani-Skiba, Malika

doi:10.1016/j.cherd.2014.08.023

Cited by 46 publications

(27 citation statements)

References 47 publications

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“…Therefore, it could be inferred that the data obtained from the experiment fitted well for the quasi‐second‐order model, revealing a rate‐limiting step mediated by chemical reaction in the adsorption behaviour between CA‐β‐CD and NAs . The higher advantage of quasi‐second‐order model fitting can be attributed to the properties of cyclodextrin polymers with multiple adsorption sites, which was also mentioned in previous studies . Typically, the adsorption process is carried out in three successive steps, with different adsorption sites affecting different adsorption steps.…”

Section: Resultssupporting

confidence: 70%

“…This also proved that the NAs in the adsorption process penetrated into the cyclodextrin polymer through surface diffusion, and then the NAs molecules were further adsorbed by the host‐guest interaction of the β‐CD units and NAs. As the previous study described, because of the proper size and shape of the cavity, the β‐CD units of CA‐β‐CD could form clathrates with NAs molecules in water by the host‐guest interaction . The NAs molecules replaced the included water by moving closer and entering the β‐CD cavity through the larger diameter entrance.…”

Section: Resultsmentioning

confidence: 75%

“…[32] The higher advantage of quasi-second-order model fitting can be attributed to the properties of cyclodextrin polymers with multiple adsorption sites, which was also mentioned in previous studies. [33] Typically, the adsorption process is carried out in three successive steps, with different adsorption sites affecting different adsorption steps. The liquid film diffusion and the intraparticle diffusion or pores diffusion are the main factors affecting the adsorption rate of NAs onto CA-b-CD, and the adsorption process at the active sites inside the adsorbent is usually very rapid.…”

Section: Adsorption Kinetic Studiesmentioning

confidence: 99%

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Adsorption of naphthenic acids from oil sand process‐affected water with water‐insoluble poly(β‐cyclodextrin‐citric acid)

Liang

Zou

2019

Can J Chem Eng

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With polyvinyl alcohol as the main chain, a water‐insoluble poly(β‐cyclodextrin‐citric acid) was prepared as a supramolecular adsorbent for the treatment of oil sand process‐affected water (OSPW) containing naphthenic acids (NAs). FT‐IR, TGA, and SEM were used for the characterization of adsorbent, and an automatic infrared oil analyzer was used to monitor the concentration change of NAs in the water. The adsorption behaviour and mechanism were explored by adsorption kinetics and thermodynamic studies. The results showed that the adsorption process could be described well with the Langmuir isothermal adsorption model and quasi‐second‐order kinetic model, which indicated that the host‐guest interaction of β‐cyclodextrin promoted the adsorption of NAs. The discussion regarding pH indicated that the neutral condition (pH = 7) was considered the best. In addition, a molecular dynamics simulation was carried out using a Materials Studio package purchased from Accelrys to verify that the structure with polyvinyl alcohol as main chain was beneficial to adsorption. The excellent adsorption capacity (qmax was 193.42 mg · g−1) and reusability of the poly(β‐cyclodextrin‐citric acid) indicated its potential as practical adsorbent for the treatment of OSPW.

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Section: Resultssupporting

confidence: 70%

Section: Resultsmentioning

confidence: 75%

Section: Adsorption Kinetic Studiesmentioning

confidence: 99%

See 1 more Smart Citation

Adsorption of naphthenic acids from oil sand process‐affected water with water‐insoluble poly(β‐cyclodextrin‐citric acid)

Liang

Zou

2019

Can J Chem Eng

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“…These industries capitalize on the host-guest interactions CDs can display with a variety of hydrophobic guests. An emerging industry for CDs is environmental remediation of pollutants (Crini and Morcellet 2002, Crini 2005, Morin-Crini and Crini 2013, Nagy et al 2014, Moulahcene et al 2015. CDs have the potential to encapsulate a variety of pollutants in water and soil, such as organic contaminants and heavy metals.…”

Section: Applications and Previous Studiesmentioning

confidence: 99%

“…CDs have the potential to encapsulate a variety of pollutants in water and soil, such as organic contaminants and heavy metals. Polymeric or solid-support materials based on CDs have been proposed as remediation strategies (Crini and Morcellet 2002, Crini 2005, Morin-Crini and Crini 2013, Nagy et al 2014, Moulahcene et al 2015.…”

Section: Applications and Previous Studiesmentioning

confidence: 99%

The Cyclodextrin-Perfluorinated Surfactant Host-Guest Complex: Fundamental Studies for Potential Environmental Remediation and Therapeutic Applications

Errico¹

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When experiments failed, or when vi papers were published, through the good and bad, they were always there to commiserate or celebrate with, and they will always be some of my best friends. Finally, I would like to thank my family: my husband Michael, for helping me stay strong; my sister Babs, for cheering me up; and especially my parents, for all their love, support, and encouragement. They always knew I would finish, and their belief in me motivated me more than they know.

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Enhancing Environmental Remediation: Advancements in Chemically Crosslinked Cyclodextrin‐Based Materials for Organic and Inorganic Pollutant Removal

Khushbu,

Mukhopadhyay

2024

Advanced Sustainable Systems

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Concern over the harmful impacts of pollutants on human health and the environment has increased in recent decades due to their widespread presence in water resources. These pollutants include pesticides, poisonous textile dyes, and micropollutants. It is essential to remove these pollutants from wastewater to enhance the quality of water for industrial usage. Because of externally hydrophilic and internally hydrophobic qualities, cyclodextrin and its derivatives have shown great promise as adsorbents for the treatment of wastewater. While cyclodextrins cannot be used as adsorbents on their own due to their water solubility, they can be efficiently polymerized with different types of cross‐linkers to increase their stability and effectiveness. This review article examines chemically crosslinked materials based on cyclodextrin and its derivatives, utilizing various cross‐linkers such as epichlorohydrin, glutaraldehyde, citric acid, N,N′‐methylene bisacrylamide and maleic anhydride. These materials are evaluated for their effectiveness in adsorbing textile dyes, micropollutants, pharmaceuticals, and pesticides from wastewater. Additionally, this article provides a detailed explanation of adsorption kinetics, thermodynamics, and kinetic isotherms for the removal of contaminants. It also discusses the mechanism of contaminant adsorption, and reusability of adsorbents. Finally, this study delves into the challenges and exciting future prospects of CD‐based adsorbents, highlighting their potential to revolutionize wastewater treatment.

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Inclusion and removal of pharmaceutical residues from aqueous solution using water-insoluble cyclodextrin polymers

Cited by 46 publications

References 47 publications

Adsorption of naphthenic acids from oil sand process‐affected water with water‐insoluble poly(β‐cyclodextrin‐citric acid)

Adsorption of naphthenic acids from oil sand process‐affected water with water‐insoluble poly(β‐cyclodextrin‐citric acid)

The Cyclodextrin-Perfluorinated Surfactant Host-Guest Complex: Fundamental Studies for Potential Environmental Remediation and Therapeutic Applications

Enhancing Environmental Remediation: Advancements in Chemically Crosslinked Cyclodextrin‐Based Materials for Organic and Inorganic Pollutant Removal

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