Polyhexamethylene guanidine functionalized chitosan nanofiber membrane with superior adsorption and antibacterial performances

Chen, Sheng; Li, Chengpeng; Hou, Tingting; Cai, Ying; Liang, Limei; Chen, Lanmei; Li, Mingshan

doi:10.1016/j.reactfunctpolym.2019.104379

Cited by 39 publications

(25 citation statements)

References 53 publications

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“…The high values of R 2 , the low values of χ 2 , and the negligible differences between the calculated (q e,calc ) and the experimental capacities suggest that the PSO model is the predominant kinetic model for Cu 2+ , Zn 2+ , and Ni 2+ ions removal by all sorbents ( Figure 2D, Figure 3C,D, and Table 1). The obtained results are in agreement with the literature data regarding the sorption kinetic analysis of Cu 2+ , Zn 2+ , Ni 2+ ions onto other CPL [6][7][8][9] or CS-based sorbents [18,20,23,24,36,[39][40][41], which have been well fitted with PSO kinetic. According to a PSO model assumption the rate-determining step may be chemisorption, relating valence forces through sharing or exchange of electrons between HMIs and active sites [23,24].…”

Section: Resultssupporting

confidence: 90%

“…Among the available biopolymers, CS has the highest sorption performance toward HMIs [10][11][12] due to its abundant -NH 2 and -OH groups. Its sorption capacity has been further improved by functionalization with diacetylmonoxime [17] and polyhexamethyleneguanidine [18] or grafting of malic acid [19] or glutamic acid [20] onto CS matrix. Nevertheless, CS has poor mechanical properties and exhibits low chemical stability in harsh aqueous environments such as HMIs-containing wastewaters.…”

Section: Introductionmentioning

confidence: 99%

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A Comparative Study on Cu2+, Zn2+, Ni2+, Fe3+, and Cr3+ Metal Ions Removal from Industrial Wastewaters by Chitosan-Based Composite Cryogels

Humelnicu

Drăgan²,

Ignat

et al. 2020

Molecules

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Materials coming from renewable resources have drawn recently an increased attention in various applications as an eco-friendly alternative in the synthesis of novel functional materials. Polysaccharides, with their prominent representative – chitosan (CS), are well-known for their sorption properties, being able to remove metal ions from dilute solutions either by electrostatic interactions or chelation. In this context, we proposed here a comparative study on Cu2+, Zn2+, Ni2+, Fe3+, and Cr3+ metal ions removal from industrial wastewaters by CS-based composite cryogels using batch technique. The composite cryogels consisting of CS embedding a natural zeolite, namely clinoptilolite, were synthesized by cryogelation, and their sorption performance were compared to those of CS cryogels and of acid-activated zeolite. A deeper analysis of thermodynamics and kinetics sorption data was performed to get insights into the sorption mechanism of all metal ions onto sorbents. Based on the optimized sorption conditions, the removal of the above-mentioned ions from aqueous solutions by the composite sorbent using dynamic technique was also evaluated.

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Section: Resultssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

A Comparative Study on Cu2+, Zn2+, Ni2+, Fe3+, and Cr3+ Metal Ions Removal from Industrial Wastewaters by Chitosan-Based Composite Cryogels

Humelnicu

Drăgan²,

Ignat

et al. 2020

Molecules

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“…This avoids the development of drug resistance, and the positively charged guanidine compounds do not interact with neutral human cells, so they can selectively kill bacteria and exhibit low toxicity to humans [ 6–10 ]. Guanidine functionalized polymers have been extensively studied, the guanidine group exists in the polymer main chain or in the side chain, and these polymers exhibited effective broad-spectrum antibacterial activities and have great potential in the fields of antibacterial or antifouling coatings, membranes and so on [ 11–18 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of antibacterial polyether biguanide curing agent and its cured antibacterial epoxy resin

Yang

Wang

et al. 2021

Designed Monomers and Polymers

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At present, bacteria continue to threaten human health, and the resistance of bacteria to antibiotics continues to increase, so the development of new antibacterial agents and antibacterial materials is increasingly important to ensure human health. In this paper, three polyether biguanide compounds with high antibacterial properties were synthesized by reacting polyetheramine T403 with o-tolylbiguanide, m-tolylbiguanide and p-tolylbiguanide (o-TTB, m-TTB and p-TTB), respectively. The antimicrobial performance of polyether biguanide against E. coli and S. aureus was evaluated using a minimum inhibitory concentration method, and the results showed that the synthesized polyether biguanide exhibited efficient and broad-spectrum antimicrobial effects. Among them, o-tolyl biguanide derivative o-TTB showed the best antimicrobial performance, with minimum inhibitory concentrations of 20 and 15 μg/mL against E. coli and S. aureus, respectively. Then, epoxy resin E51 was cured using the obtained TTB as a curing agent to prepare an epoxy resin with antibacterial properties. The inhibition of the growth of S. aureus by the cured o-TTB/E51 resin was investigated by incubating the cured epoxy resin with bacteria, and the results showed that the cured resin had a significant inhibitory effect on the growth of bacteria. The non-isothermal curing kinetics of the o-TTB/E51 system were investigated by differential scanning calorimetry (DSC) to determine the optimized curing reaction temperature, curing kinetic parameters and curing kinetics equation.

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“…Water preservation and treatment have become common global concerns in recent years, mainly due to the growing need to distribute high‐quality water and decrease its scarcity 5–7 . As regards the disposal, treatment, and destination of industrial residues, effluents containing heavy metals, such as, copper, nickel, chromium, arsenic, lead, mercury, and cadmium, have received more attention 1,8–10 .…”

Section: Introductionmentioning

confidence: 99%

“…[2][3][4] Water preservation and treatment have become common global concerns in recent years, mainly due to the growing need to distribute high-quality water and decrease its scarcity. [5][6][7] As regards the disposal, treatment, and destination of industrial residues, effluents containing heavy metals, such as, copper, nickel, chromium, arsenic, lead, mercury, and cadmium, have received more attention. 1,[8][9][10] These metals display carcinogenic potential, high toxicity, and solubility in water, and they are not biodegradable, even in smaller concentrations, which may cause environmental and health issues.…”

Section: Introductionmentioning

confidence: 99%

Functionalized chitosan with butylammonium ionic liquids for removal of Cr(VI) from aqueous solution

Eliodório

Pereira

Morandim-Giannetti

2020

J of Applied Polymer Sci

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Environmental pollution by heavy metals is currently a problem of great concern for human health. In this context, this study aims to contribute with the synthesis and characterization of chitosan functionalized with three different ionic liquids (n-butylammonium acetate, sec-butylammonium acetate, and tert-butylammonium acetate) followed by its application in hexavalent chromium effluent treatment. The adsorbents synthesized (ChN, ChS, and ChT) were characterized by SEM, EDS, FTIR, BET, RDD, PSD, and XRD techniques. Afterward, the influences of temperature, contact time, and pH on the Cr(VI) adsorption process were evaluated. The solution with pH 3 displayed the highest adsorption capacities (107.31, 104.60, and 107.97 mg.g-1 for ChN, ChS, and ChT, respectively). The kinetic data were better adjusted to the Weber-Morris kinetic model with an ideal time of 2 h. Furthermore, the influence of temperature was evaluated using the Freundlich and Langmuir isotherms, with maximum capacities of 142.05 (ChN), 131.58 (ChS), and 146.63 mg.g-1 (ChT). The adsorbent displayed enhanced adsorption properties in comparison with raw chitosan by an intensification of the electrostatic interaction between amino groups and hexavalent chromium. Finally, the reusability was investigated, and significant results were observed (84.33 ± 4.87%) in the adsorption process after 4 cycles.

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Polyhexamethylene guanidine functionalized chitosan nanofiber membrane with superior adsorption and antibacterial performances

Cited by 39 publications

References 53 publications

A Comparative Study on Cu2+, Zn2+, Ni2+, Fe3+, and Cr3+ Metal Ions Removal from Industrial Wastewaters by Chitosan-Based Composite Cryogels

A Comparative Study on Cu2+, Zn2+, Ni2+, Fe3+, and Cr3+ Metal Ions Removal from Industrial Wastewaters by Chitosan-Based Composite Cryogels

Synthesis of antibacterial polyether biguanide curing agent and its cured antibacterial epoxy resin

Functionalized chitosan with butylammonium ionic liquids for removal of Cr(VI) from aqueous solution

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