Application of novel magnetic β -cyclodextrin-anhydride polymer nano-adsorbent in cationic dye removal from aqueous solution

Vahedi, Shahrokh; Tavakoli, Omid; Khoobi, Mehdi; Ansari, Ali; Faramarzi, Mohammad Ali

doi:10.1016/j.jtice.2017.07.039

Cited by 51 publications

(20 citation statements)

References 54 publications

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“…The larger molecules could enter and bind in the micropores, whereas small‐sized molecules could easily enter into and out of pores so that Fc‐HPP preferred to absorb large‐sized dyes molecules . Compared with CV, the carboxyl group and one quinone ring in RB could result in relatively weaker electrostatic interaction with Fc‐HPP . Therefore, the absorption capacity of Fc‐HPP for RB was slightly lower than that of CV.…”

Section: Resultsmentioning

confidence: 99%

“…[39] Compared with CV,t he carboxyl group and one quinone ring in RB couldr esult in relatively weaker electrostatic interaction with Fc-HPP. [40] Therefore, the absorption capacity of Fc-HPP for RB was slightly lower than that of CV.I na ddition, removal efficiency,a sa ni mportant parameter to estimate absorption properties, is discussed in detail. The relationship of removal efficiency to the initial concentration is shown in the inset of Figure7.A sc an be seen from the diagram, the removal efficiencyd ecreases with the increase of initial concentration.…”

Section: Dyes Absorptionmentioning

confidence: 96%

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Ferrocene‐Functionalized Silsesquioxane‐Based Porous Polymer for Efficient Removal of Dyes and Heavy Metal Ions

Yang

Liu

2018

Chemistry A European J

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A novel ferrocene-linked organic-inorganic hybrid porous polymer has been successfully prepared by Friedel-Crafts reaction of octavinylsilsesquioxane and ferrocene. The relationship of structure/property was investigated by FTIR, NMR, XRD, Brunauer-Emmett-Teller (BET) etc. The obtained porous polymer exhibited a high surface area of 1015 m g and a hierarchical pore structure. It could be applied to wastewater treatment with the absorption capacity of up to 1683 mg g for Congo red (CR), 1083 mg g for crystal violet (CV), 1003 mg g for rhodamine B (RB), 441 mg g for methylene blue (MB), 191 mg g for Hg , and 328 mg g for Pb . Remarkably, it could be easily regenerated and the removal efficiency remains almost constant even after six cycles.

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Section: Resultsmentioning

confidence: 99%

Section: Dyes Absorptionmentioning

confidence: 96%

Ferrocene‐Functionalized Silsesquioxane‐Based Porous Polymer for Efficient Removal of Dyes and Heavy Metal Ions

Yang

Liu

2018

Chemistry A European J

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“…Fe 3 O 4 nanoparticles (NPs) were prepared by chemical co‐precipitation method . Briefly, FeCl 3 .6H 2 O (5.84 g) and FeCl 2 .4H 2 O (2.15 g) were dissolved in DW (100 ml) before introduction into a round‐bottomed three neck flask under nitrogen.…”

Section: Methodsmentioning

confidence: 95%

Novel Fe₃O₄/hydroxyapatite/β‐cyclodextrin nanocomposite adsorbent: Synthesis and application in heavy metal removal from aqueous solution

Ansari

Vahedi

Tavakoli

et al. 2018

Applied Organom Chemis

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The increased global concern on environmental protection has made researchers focus their attention on new and more efficient methods of pollutant removal. In this research, novel nanocomposite adsorbents,i.e., magnetic hydroxyapatite (Fe 3 O 4 @HA) and magnetic hydroxyapatite β-cyclodextrin (Fe 3 O 4 @HA-CD) were synthesized and used for heavy metal removal. The adsorbents were characterized by FTIR, XRD, TGA, VSM, and SEM. In order to investigate the effect of β-cyclodextrin (β-CD) removal efficiency, adsorption results of nine metal ions were compared for both adsorbents. β-CD showed the most increasing effect for Cd 2+ and Cu 2+ removal, so these two ions were selected for further studies. The effect of diverse parameters including pH, contact time, initial metal ion concentration and adsorbent dosage on the adsorption process was discussed. The optimum pH was 6 and adsorption equilibrium was achieved after 1 hr. Adsorption kinetic data were well fitted by pseudo-second-order model proposing that metal ions were adsorbed via chemical reaction. Adsorption isotherm was best described by the Langmuir model, and maximum adsorption capacity for Cd 2+ and Cu 2+ was 100.00 and 66.66 (mg/g), respectively. Desorption experiment was also done, and the most efficient eluent used for desorption of metal ions was EDTA (0.001 M) with 91% and 88% of Cd 2+ and Cu 2+ release, respectively. Recyclability studies also showed a 19% decrease in the adsorption capacity of the adsorbent after five cycles of regeneration. Therefore, the synthesized adsorbents were recognized as potential candidates for heavy metal adsorption applications.

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“…Among the various methods of obtaining them, deprotonation stands out, in which the hydroxyl anion can be used in SN2 type polymerization reactions, direct dehydration in the presence of appropriate diodes and diacids, and condensation in the presence of a series of linkers [188]. In addition to polymerization, some studies have used β-CD for the development of organic-inorganic hybrid systems for the removal of dyes, such as magnetic CD polymers [40,189] and Halloysite−Cyclodextrin Nanosponges [190].…”

Section: Cyclodextrin Polymersmentioning

confidence: 99%

The Role of β-Cyclodextrin in the Textile Industry—Review

Bezerra

Arias²,

Firmino

et al. 2020

Molecules

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β-Cyclodextrin (β-CD) is an oligosaccharide composed of seven units of D-(+)-glucopyranose joined by α-1,4 bonds, which is obtained from starch. Its singular trunk conical shape organization, with a well-defined cavity, provides an adequate environment for several types of molecules to be included. Complexation changes the properties of the guest molecules and can increase their stability and bioavailability, protecting against degradation, and reducing their volatility. Thanks to its versatility, biocompatibility, and biodegradability, β-CD is widespread in many research and industrial applications. In this review, we summarize the role of β-CD and its derivatives in the textile industry. First, we present some general physicochemical characteristics, followed by its application in the areas of dyeing, finishing, and wastewater treatment. The review covers the role of β-CD as an auxiliary agent in dyeing, and as a matrix for dye adsorption until chemical modifications are applied as a finishing agent. Finally, new perspectives about its use in textiles, such as in smart materials for microbial control, are presented.

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Application of novel magnetic β -cyclodextrin-anhydride polymer nano-adsorbent in cationic dye removal from aqueous solution

Cited by 51 publications

References 54 publications

Ferrocene‐Functionalized Silsesquioxane‐Based Porous Polymer for Efficient Removal of Dyes and Heavy Metal Ions

Ferrocene‐Functionalized Silsesquioxane‐Based Porous Polymer for Efficient Removal of Dyes and Heavy Metal Ions

Novel Fe₃O₄/hydroxyapatite/β‐cyclodextrin nanocomposite adsorbent: Synthesis and application in heavy metal removal from aqueous solution

The Role of β-Cyclodextrin in the Textile Industry—Review

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Application of novel magnetic β -cyclodextrin-anhydride polymer nano-adsorbent in cationic dye removal from aqueous solution

Cited by 51 publications

References 54 publications

Ferrocene‐Functionalized Silsesquioxane‐Based Porous Polymer for Efficient Removal of Dyes and Heavy Metal Ions

Ferrocene‐Functionalized Silsesquioxane‐Based Porous Polymer for Efficient Removal of Dyes and Heavy Metal Ions

Novel Fe3O4/hydroxyapatite/β‐cyclodextrin nanocomposite adsorbent: Synthesis and application in heavy metal removal from aqueous solution

The Role of β-Cyclodextrin in the Textile Industry—Review

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Novel Fe₃O₄/hydroxyapatite/β‐cyclodextrin nanocomposite adsorbent: Synthesis and application in heavy metal removal from aqueous solution