Development and characterization of chitosan functionalized dialdehyde viscose fiber for adsorption of Au(III) and Pd(II)

Liu, Fenglei; Hua, Shan; Zhou, Liang; Hu, Baowei

doi:10.1016/j.ijbiomac.2021.01.145

Cited by 44 publications

(15 citation statements)

References 34 publications

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“…This result indicated that the mechanism of Au(III) recovery from an aqueous solution involved the reduction of Au(III) to Au(0) for the reaction between Au(III) and the --NH2 group of the amidoxime moiety [29]. In Figure 3, Liu et al showed that electrostatic interactions and chelation both contribute to the adsorption mechanism as part of the uptake process for precious metals onto the chitosan composite material [30]. Table 2 provides a summary of some N-functionalized chitosan adsorbents for the removal of Au-and Pd-species from aqueous solution.…”

Section: N-containing Chitosan Derivativesmentioning

confidence: 97%

“…Regarding the alkaline and alkaline-earth metals, pristine chitosan biopolymers have no affinity to these metal species in an acidic environment, and the modified chitosan with soft Lewis base ligands will not undergo bonding with these alkaline-earth metals either [7]. Liu's results were compared for the uptake of modified chitosan with Au(III), Pd(II), Cu(II), Ni(II), Cr(III), and Al(III), where it was found that the chelation effect of Au(III) cations was the most potent among the tested metal-ions [30]. Lin's research used the hard-soft acid-base (HSAB) theory to account for the trend observed for the S-modified chitosan adsorbents, where the greatest selectivity was noted for Au(III) amongst a mixture of competitor cation species: Co(II), Cd(II), Ni(II), and Pd(II) [45].…”

Section: Competing Ions In the Precious Metal Matrixmentioning

confidence: 99%

“…Physical adsorption mechanisms include electrostatic interactions such as hydrogen bonding, dipole-dipole interactions, and π-π interactions. Chemisorption includes complexation, chelation, and redox reactions to yield precipitates [30]. The adsorption mechanism between Au(III) ions and chitosan-based sorbents are viewed as a complex process that involves electrostatic interactions, redox reactions, and other processes.…”

Section: Mechanism Of Adsorptionmentioning

confidence: 99%

See 2 more Smart Citations

An Overview of Modified Chitosan Adsorbents for the Removal of Precious Metals Species from Aqueous Media

2022

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This mini-review provides coverage of chitosan-based adsorbents and their modified forms as sustainable solid-phase extraction (SPE) materials for precious metal ions, such as gold species, and their complexes in aqueous media. Modified forms of chitosan-based adsorbents range from surface-functionalized systems to biomaterial composites that contain inorganic or other nanomaterial components. An overview of the SPE conditions such as pH, temperature, contact time, and adsorbent dosage was carried out to outline how these factors affect the efficiency of the sorption process, with an emphasis on gold species. This review provides insight into the structure-property relationships for chitinaceous adsorbents and their metal-ion removal mechanism in aqueous media. Cross-linked chitosan sorbents showed a maximum for Au(III) uptake capacity (600 mg/g), while S-containing cross-linked chitosan display favourable selectivity and uptake capacity with Au(III) species. Compared to industrial adsorbents such as activated carbon, modified chitosan sorbents display favourable uptake of Au(III) species, especially in aqueous media at low pH. In turn, this contribution is intended to catalyze further research directed at the rational design of tailored SPE materials that employ biopolymer scaffolds to yield improved uptake properties of precious metal species in aqueous systems. The controlled removal of gold and precious metal species from aqueous media is highly relevant to sustainable industrial processes and environmental remediation.

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Section: N-containing Chitosan Derivativesmentioning

confidence: 97%

Section: Competing Ions In the Precious Metal Matrixmentioning

confidence: 99%

Section: Mechanism Of Adsorptionmentioning

confidence: 99%

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An Overview of Modified Chitosan Adsorbents for the Removal of Precious Metals Species from Aqueous Media

2022

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“…The chitosan composite prepared by Zhuang 19 and others by the wet spinning method has good adsorption of cobalt ions. Fenglei Liu 20 et al prepared viscose fibers functionalized with chitosan that can adsorb gold well. Ruihua Mu et al 21 prepared a porous lignosulfonate/chitosan adsorbent, which has good adsorption properties for copper ions and cobalt ions.…”

Section: Introductionmentioning

confidence: 99%

A chitosan fiber as green material for removing Cr(VI) ions and Cu(II) ions pollutants

Zhang

Jing

2021

Sci Rep

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The application shell uses cellulose as a green and recyclable fiber material, which has great value in the field of water treatment environment. Varying factors, including pH value, dosage of CS, reaction time and original Cr(VI) ions and Cu(II) ions were studied to investigate the Cr(VI) and Cu(II) ions removal efficiency. The obtained shell trichlorocellulose has better permeability to copper ions, which is mainly due to the different oxide states of copper ions and chromium ions in a pH environment, which lead to different combinations. The price of shell cellulose neutralization is relatively low. Metal ions have better absorption properties. The kinetic and thermodynamic characteristics of the adsorption process of copper ions by chitosan yarns were discussed. The adsorption process of copper ions conformed to the quasi-second-order kinetic equation. It can be fitted by Langmuir isotherm. The adsorption of copper ions by the yarn is a spontaneous thermal reaction with both physical adsorption and chemical adsorption. Compared with chromium ions, chitosan fibers have better adsorption of copper ions, which is mainly because the amino groups in chitosan fibers can have good chelation with copper ions. SEM, FTIR, XRD were used to characterize the adsorption of copper ions by chitosan fibers, and the mechanism of the adsorption of metal ions by chitosan fibers was explored.

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“…Zhuang et al 11 made chitosan composite by the wet spinning method has good adsorption of cobalt ions. Liu et al 12 prepared viscose fibers functionalized with chitosan that can adsorb gold and palladium well. Soylak et al 13 have found that the acetate membrane filter can detect the removal of metal nickel ions, and the detection limit is 4.87 μg/L.…”

Section: Introductionmentioning

confidence: 99%

Study on antibacterial and copper ion removal of chitosan fiber/acetate fiber and yarn for water purification

Zhang

et al. 2021

Journal of Engineered Fibers and Fabrics

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Use chitosan (CS) fiber and cellulose acetate (CA) fiber with different mixing ratios as raw materials, the kinetic and thermodynamic characteristics of the adsorption process of chitosan fiber/cellulose acetate fiber (CS/CA) ratio of 90:10 are explored, and the adsorption process conforms to the quasi-second-order kinetic equation. It can be fitted by Langmuir isotherm. The adsorption process is a spontaneous thermal reaction with both physical adsorption and chemical adsorption. The best adsorption time is 30 min, the time to reach adsorption equilibrium is 180 min, and the best adsorption pH is 5, the most suitable temperature is 35°C, and rising the temperature is conducive to the fibers adsorption. The materials before and after the CS/CA blended yarn adsorbed copper ions were characterized by XRD, DSC, FT-IR, and the adsorption mechanism was analyzed. In the orthogonal experiment, the copper ions concentration has the most obvious effect on the adsorption capacity, and the temperature has the most obvious effect on the adsorption efficiency. The optimal adsorption combination is that the mixing ratio of chitosan fiber/cellulose acetate (CS/CA) is 80:20, the pH is 5, the temperature is 35°C, and the copper ion concentration is 100 mg L−1. Comparing the adsorption performance of fibers with different mixing ratios, the adsorption performance of CS/CA ratio of 90:10 is the best. The filtration efficiency of the filter material, made of fibers with different mixing ratios, to copper ions is tested, and the filtration performance with a mixing ratio of 90:10 is the best, and the filtration efficiency is 64.33%.

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Development and characterization of chitosan functionalized dialdehyde viscose fiber for adsorption of Au(III) and Pd(II)

Cited by 44 publications

References 34 publications

An Overview of Modified Chitosan Adsorbents for the Removal of Precious Metals Species from Aqueous Media

An Overview of Modified Chitosan Adsorbents for the Removal of Precious Metals Species from Aqueous Media

A chitosan fiber as green material for removing Cr(VI) ions and Cu(II) ions pollutants

Study on antibacterial and copper ion removal of chitosan fiber/acetate fiber and yarn for water purification

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