Cross-linked chitosan/β-cyclodextrin composite for selective removal of methyl orange: Adsorption performance and mechanism

Jiang, Yezhou; Liu, Bingchuan; Xu, Jikun; Pan, Keliang; Hou, Huijie; Hu, Jingping; Yang, Jiakuan

doi:10.1016/j.carbpol.2017.10.097

Cited by 211 publications

(66 citation statements)

References 62 publications

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“…The removal efficiency of heavy metal ions Cr 6+ , Zn 2+ , Fe 2+ and Cd 2+ were 92%, 90%, 82% and 87%, respectively. Using maleic chain as a bridge and glutaraldehyde as crosslinking agent, Jiang et al [24] synthesized CS-CD complex. It was found that the optimal adsorption capacity of methyl orange was 392 mg/g.…”

Section: Introductionmentioning

confidence: 99%

Study on Preparation and Separation and Adsorption Performance of Knitted Tube Composite β-Cyclodextrin/Chitosan Porous Membrane

Tang

et al. 2019

Polymers

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In order to obtain membranes with both organic separation and adsorption functions, knitted tube composite β-cyclodextrin/chitosan (β-CD/CS) porous membranes were prepared by the non-solvent induced phase separation (NIPS) method using CS and β-CD as a membrane-forming matrix, glutaraldehyde as crosslinking agent to improve water stability, and knitted tube as reinforcement to enhance the mechanical properties. Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), contact angle, water flux, bovine serum albumin (BSA) rejection and tensile test were carried out. The FTIR demonstrated that the β-CD and CS had been successfully crosslinked. With the crosslinking time increased, the membrane structure became denser, the contact angle and the rejection rate increased, while the water flux decreased. The strength and elongation at a break were 236 and 1.7 times higher than these of bare β-CD/CS porous membranes, respectively. The strength of crosslinking membranes increased further. The adsorption performance of composite membranes was investigated for the removal of phenolphthalein (PP) from aqueous solution. The adsorption process followed the Langmuir isotherm model, and the kinetic behavior was accorded with the Double constant equation and the Elovich equation. The adsorption mechanism could be explained by the synergistic effect of host-guest interaction from β-cyclodextrin, non-uniform diffusion and porous network capture.

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Section: Introductionmentioning

confidence: 99%

Study on Preparation and Separation and Adsorption Performance of Knitted Tube Composite β-Cyclodextrin/Chitosan Porous Membrane

Tang

et al. 2019

Polymers

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“…A number of treatment methods have been developed for dye removal from wastewater including adsorption, chemical reduction [5], oxidation [6], coagulation [7], biological treatment [8] and membrane separation [9]. Among all, adsorption is the most attractive method due to its efficiency and applicability on a large scale as well as having the potential of reusability of adsorbents [10]. Electrospinning is a simple and effective method to produce desirable adsorbents, having a high surface area to volume to ratio and highly porous structure.…”

Section: Introductionmentioning

confidence: 99%

Amine modified electrospun PIM-1 ultrafine fibers for an efficient removal of methyl orange from an aqueous system

Satilmiş

Uyar

2018

Applied Surface Science

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Polymers of Intrinsic Microporosity (PIM-1) is a promising material for adsorption and separation applications. While PIM-1 displays high affinity for neutral species, it shows lack of interaction with charged molecules in an aqueous system due to non-polar nature of it. Functionalization of PIM-1 provides an advantage of tailoring the interaction ability as well as the adsorption performance of PIM-1 towards target pollutants. In this study, electrospun Polymer of Intrinsic Microporosity (PIM-1) fibrous membrane (PIM-FM) was reacted with borane dimethyl sulfide complex to obtain amine modified PIM-1 fibrous membrane (AM-PIM-FM). Furthermore, PIM-1 film, which is referred as PIM-1 dense membrane (PIM-DM), was also modified under the same conditions as a control material. Structural analyses have confirmed that nitrile groups of PIM-1 have been fully converted to amine group as a result of the reduction reaction. Average fiber diameter of parent PIM-1 fibers was found 2.3 ± 0.3 μm, and it remained almost the same after the amine modification. In addition, no physical damage has been observed on fiber structure based on the SEM analysis. Both amine modified PIM-1 dense and fibrous membranes became insoluble in common organic solvents. Before the modification, water contact angle of PIM-FM was 138 ± 2°which also remained almost the same after the modification, showing water contact angle of 131 ± 8°. The insolubility along with amine functionality make membranes promising materials for adsorption of anionic dyes from wastewater. Here, dye (i.e. Methyl Orange) removal ability of AM-PIM-FM from an aqueous system was investigated and compared with parent PIM-1 (PIM-FM) as well as dense membrane form (AM-PIM-DM). AM-PIM-FM shows extremely higher adsorption capacity than that of PIM-FM and AM-PIM-DM. The maximum adsorption capacity of AM-PIM-FM was found 312.5 mg g −1 for Methyl Orange. Langmuir isotherm model was found more favorable for the adsorption. AM-PIM-FM was employed effectively in continuous adsorption/desorption studies for several times without having any damage on fiber morphology using batch adsorption process. Furthermore, AM-PIM-FM was successfully used as a molecular filter for the removal of methyl orange from an aqueous system. The results indicate that AM-PIM-FM could be a promising adsorbent for removal of anionic molecules from an aqueous system.

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“…The adsorption of the dye and the metal ions was afforded by incorporation of citric acid domains, interacting with the analytes through electrostatic interactions and chelation, while the adsorption of the hydrophobic contaminant was afforded by host-guest supramolecular inclusion to the interior of macrocyclic saccharide's residues, which leads to the non-competitive adsorption of different analytes [13]. Such host-guest inclusion was also studied for β-CD cross-linked with glutaraldehyde, maleic anhydride, ethylenediaminetetraacetic acid (EDTA), or FDA, as adsorptive materials towards various organic dyes and phenolic compounds [14][15][16][17]. Efficient adsorbents based on cross-linked polymeric products dedicated to toxic metal ions were obtained using rectorite/chitosan or β-CD/tetrafluoro-terephthalonitrile systems [18][19], while chloromethylated polystyrene cross-linked using dichloroethane and co-polymer of glycidylmethacrylate and divinylbenzene post-crosslinked with dichloroethane were studied as adsorbents towards aniline and salicylic acid, respectively [20][21].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Metal Cations Adsorption Selectivity Using Nanocavities-Rich Polyamine-Cross-Linked PMVEAMA

Pawlaczyk¹,

Schroeder²

2021

Proceedings of the 6th World Congress on Recent Advances in Nanotechnology

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Water contamination with toxic metal ions is one of the major problems of environmental pollution, caused by intensified economic development. Therefore, efficient sorptive systems capable of binding metal cations are of great interest. Herein, we present the synthesis of materials containing nanocavities created by the cross-linking of poly(methyl vinyl ether-alt-maleic anhydride) with four structurally different polyamines: tris(2-aminoethyl)amine (TREN), piperazine, triethylenetetramine (TETA), and 4,7,10-trioxa-1,13-tridecanediamine (TRI-OXA). The easiness of the synthetic protocol and the biocompatibility of bare polymer indicate the convenience of the proposed adsorbents. The materials were subjected to adsorption of Al(III), Mn(II), Hg(II), and Cd(II) ions from their binary, ternary, and quaternary systems. The ions' adsorption percentages were established using XRF analysis, indicating the dependence of the materials' adsorption ability on the cross-linking agent used. Such findings are strictly related to the size of the polyamine used, determining the distances between subsequent polymer chains, and thus the size of internal nanocavities formed.

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Cross-linked chitosan/β-cyclodextrin composite for selective removal of methyl orange: Adsorption performance and mechanism

Cited by 211 publications

References 62 publications

Study on Preparation and Separation and Adsorption Performance of Knitted Tube Composite β-Cyclodextrin/Chitosan Porous Membrane

Study on Preparation and Separation and Adsorption Performance of Knitted Tube Composite β-Cyclodextrin/Chitosan Porous Membrane

Amine modified electrospun PIM-1 ultrafine fibers for an efficient removal of methyl orange from an aqueous system

Investigation of the Metal Cations Adsorption Selectivity Using Nanocavities-Rich Polyamine-Cross-Linked PMVEAMA

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