A novel crosslinked β-cyclodextrin-based polymer for removing methylene blue from water with high efficiency

Jiang, Hongliu; Lin, Jie-Ci; Hai, Wei; Tan, Hongwei; Luo, Ying; Xie, Xiaolin; Cao, Yao; He, Fu‐An

doi:10.1016/j.colsurfa.2018.10.004

Cited by 63 publications

(35 citation statements)

References 35 publications

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“…Figure 13 graphically compares the results from this work with those previously reported [20,25,45,46,47,48,49]. The β-CD/CS porous membrane exhibited excellent adsorption efficiency (85%).…”

Section: Resultssupporting

confidence: 68%

“…After four cycles of regeneration, the regeneration rate was 78.3%. Jiang et al [20] synthesized a novel crosslinked porous β-CD-based polymer containing carboxylic acid groups, which has a triple absorption effect of inclusion, porous network capture and electrostatic interaction. The maximum adsorption capacity of methylene blue dye was 672 mg/g.…”

Section: Introductionmentioning

confidence: 99%

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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: Resultssupporting

confidence: 68%

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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“…The FT-IR spectrum of the MN-PCDP not only obviously combines the characteristic peaks of the TFT and the β-CD but also displays a new peak at 1265 cm -1 in relation to the newly formed C-F group, implying that the β-CD has been crosslinked with TFT. 23,24 Fig. 2e indicates that the Brunauer-Emmett-Teller surface areas (S BET ) of MN-PCDP is about 66 m 2 g -1 .…”

Section: Resultsmentioning

confidence: 99%

Ultra-rapid and highly efficient enrichment of organic pollutants via magnetic nanoparticles/mesoporous nanosponge compounds for ultrasensitive nanosensors

Zhang¹,

Hao²,

You³

et al. 2021

Preprint

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Developing advanced sensing and detection technologies to effectively monitor organic micropollutants in water is under urgent demand in both scientific and industrial communities. Currently, owing to the ultrahigh sensitivity on the single-molecule level with highly informative spectra characteristics, SERS technique is regarded as the most direct and effective detection technique. However, some weakly adsorbed molecules, such as most of persistent organic pollutants, cannot exhibit strong SERS signals, which is a long-standing key challenge that has not been solved. Here, we show an enrichment-typed sensing strategy based on a powerful porous composite material, call mesoporous nanosponge. The nanosponge consists of magnetic nanoparticles immobilized porous β-cyclodextrin polymers, demonstrating remarkable capability of effective and fast removal of organic micropollutants, e.g. ~90% removal efficiency within ~1 min. With the anchoring of magnetic nanoparticles, the current new polymer adsorbent can be easily recycled from water and re-dispersed in ethanol so that the target molecules in the cavity of adsorbent is concentrated, with an enrichment factor up to ~103. By means of the current enrichment strategy, the limit of detection (LOD) of the typical organic pollutants can be significantly improved, i.e. increasing 2~3 orders of magnitude, compared with the detection without molecule enrichment protocol. Consequently, the current enrichment strategy is proved to be applicable in a variety of fields for portable and fast detection, such as Raman and fluorescent.

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“…CD polymers have the advantage that several CDs are coupled together by covalent bonding providing close proximity of the CD cavities …”

Section: Application Of Polymers In the Food Industrymentioning

confidence: 99%

The application and prospects of cyclodextrin inclusion complexes and polymers in the food industry: a review

Tian

Xiao

Hei

et al. 2020

Polymer International

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Cyclodextrin is an odorless and tasteless cyclic oligosaccharide widely used in various fields such as food, medicine and the environment. Cyclodextrin can improve solubility and stability, and can mask the bad taste of specific substances. Cyclodextrins and their polymers primarily act by forming complexes in foods, and can be applied in food packing, food analysis, enhancing the properties of antioxidants, antibacterials, for stability and so on. The challenges and opportunities facing this area are reviewed. It is hoped that the review will provide useful information for future applications of cyclodextrin in the food industry.

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A novel crosslinked β-cyclodextrin-based polymer for removing methylene blue from water with high efficiency

Cited by 63 publications

References 35 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

Ultra-rapid and highly efficient enrichment of organic pollutants via magnetic nanoparticles/mesoporous nanosponge compounds for ultrasensitive nanosensors

The application and prospects of cyclodextrin inclusion complexes and polymers in the food industry: a review

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