Citric acid-crosslinked β-cyclodextrin for simultaneous removal of bisphenol A, methylene blue and copper: The roles of cavity and surface functional groups

Huang, Weiwei; Hu, Yonghua; Li, Yaoyue; Zhou, Yanbo; Niu, Dechao; Lei, Zhongfang; Zhang, Zhenya

doi:10.1016/j.jtice.2017.11.021

Cited by 190 publications

(80 citation statements)

References 33 publications

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“…The solubility decreases as the number of connected monomers increases, and this parameter depends on the reactivity of the cross-linker agent, substituents, and the reaction time [23,53,54]. The most common cross-linkers are epichlorhydrin and citric acid [52,[55][56][57]. The water-insoluble cyclodextrins today are used as a solid phase to remove pollution from solutions and used in analytical chemistry [58][59][60][61].…”

Section: Cyclodextrin Polymersmentioning

confidence: 99%

Cyclodextrins in Drug Delivery Systems and Their Effects on Biological Barriers

et al. 2019

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Cyclodextrins are widely used excipients, composed of glucopyranose units with a cyclic structure. One of their most important properties, is that their inner cavity is hydrophobic, while their surface is hydrophilic. This enables them for the complex formation with lipophilic molecules. They have several applications in the pharmaceutical field like solubility enhancers or the building blocks of larger drug delivery systems. On the other hand, they have numerous effects on cells or biological barriers. In this review the most important properties of cyclodextrins and cyclodextrin-based drug delivery systems are summarized with special focus on their biological activity.

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Section: Cyclodextrin Polymersmentioning

confidence: 99%

Cyclodextrins in Drug Delivery Systems and Their Effects on Biological Barriers

et al. 2019

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“…Besides, the Sips model incorporates both heterogeneity and saturation and effectively combines the Freundlich and Langmuir models. 27,47 The isotherm parameters calculated through tting the adsorption data to the four models appear in Table 3, and the best-t curves for MB and CV adsorption appear in Fig. 10c and d respectively.…”

Section: Dye Adsorption Isotherms For Dex-ma/paamentioning

confidence: 99%

“…The heterogeneity factor, n S for both MB (0.40) and CV (0.14) are both signicantly less than unity indicating that their adsorption processes are only moderately heterogeneous in nature. 47…”

Section: Dye Adsorption Isotherms For Dex-ma/paamentioning

confidence: 99%

Preparation of a poly(acrylic acid) based hydrogel with fast adsorption rate and high adsorption capacity for the removal of cationic dyes

Yuan

Wang

et al. 2019

RSC Adv.

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“…Furthermore, it could be seen that all of the values of the correlated R 2 with different initial concentrations of NAs were much higher for the Langmuir isotherm model (R 2 = 0.994 37, 0.972 67) than that for the Freundlich isotherm model (R 2 = 0.988 83, 0.944 94). This showed that the Langmuir isotherm model could more accurately describe the adsorption process, proving that the monolayer adsorption for NAs was dominant on the homogeneous surfaces of CA‐β‐CD and EDTA‐β‐CD . The q max of the CA‐β‐CD was 193.42 mg · g −1 , while the q max of the EDTA‐β‐CD was 132.8 mg · g −1 .…”

Section: Resultsmentioning

confidence: 87%

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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Citric acid-crosslinked β-cyclodextrin for simultaneous removal of bisphenol A, methylene blue and copper: The roles of cavity and surface functional groups

Cited by 190 publications

References 33 publications

Cyclodextrins in Drug Delivery Systems and Their Effects on Biological Barriers

Cyclodextrins in Drug Delivery Systems and Their Effects on Biological Barriers

Preparation of a poly(acrylic acid) based hydrogel with fast adsorption rate and high adsorption capacity for the removal of cationic dyes

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

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