Polyethylenimine Grafted Chitosan Nanofiber Membrane as Adsorbent for Selective Elimination of Anionic Dyes

Gong, Xinwen; Yang, Dongxue; Wang, Nannan; Sun, Shian; Nie, Jun; Ma, Guiping

doi:10.1007/s12221-020-1321-7

Cited by 15 publications

(6 citation statements)

References 44 publications

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“…The N 1s region of MO-95-b-UV displays a broad peak, which is deconvoluted into azo bonded N (≈401.0 eV) 42 and tertiary amine N (≈399.0 eV). 43 The peak maximum (399.6 eV) in MO-197-a-UV has shifted to a higher binding energy, indicating the conversion of some tertiary amine groups of MO molecules to primary amine groups.…”

Section: Resultsmentioning

confidence: 99%

“…43 The peak maximum (399.6 eV) in MO-197-a-UV has shifted to a higher binding energy, indicating the conversion of some tertiary amine groups of MO molecules to primary amine groups. 42 This conversion is considered as a step in MO photocatalytic degradation pathway. 44 Furthermore, the narrow peak suggests almost zero contribution from azo N, which can be expected as a result of UV exposure.…”

Section: Catalysis Science and Technology Papermentioning

confidence: 99%

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Liberation of photogenerated radicals from a nano-titania surface at the solid–air interface

Manuda,

Fernando,

Nissanka

et al. 2024

Catal. Sci. Technol.

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Section: Resultsmentioning

confidence: 99%

Section: Catalysis Science and Technology Papermentioning

confidence: 99%

Liberation of photogenerated radicals from a nano-titania surface at the solid–air interface

Manuda,

Fernando,

Nissanka

et al. 2024

Catal. Sci. Technol.

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“…Nanofibers can be used as an adsorbent for a variety of analytes due to the nanofiber's highly adjustable porosity and surface effects [72][73][74][75][76]. As with the electrocatalytic behavior, the adsorptive properties of nanofibers can be adjusted by changing the size, configuration, and synthesis methods.…”

Section: Adsorptive Behaviormentioning

confidence: 99%

Perspective on Nanofiber Electrochemical Sensors: Design of Relative Selectivity Experiments

2021

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The use of nanofibers creates the ability for non-enzymatic sensing in various applications and greatly improves the sensitivity, speed, and accuracy of electrochemical sensors for a wide variety of analytes. The high surface area to volume ratio of the fibers as well as their high porosity, even when compared to other common nanostructures, allows for enhanced electrocatalytic, adsorptive, and analyte-specific recognition mechanisms. Nanofibers have the potential to rival and replace materials used in electrochemical sensing. As more types of nanofibers are developed and tested for new applications, more consistent and refined selectivity experiments are needed. We applied this idea in a review of interferant control experiments and real sample analyses. The goal of this review is to provide guidelines for acceptable nanofiber sensor selectivity experiments with considerations for electrocatalytic, adsorptive, and analyte-specific recognition mechanisms. The intended presented review and guidelines will be of particular use to junior researchers designing their first control experiments, but could be used as a reference for anyone designing selectivity experiments for non-enzymatic sensors including nanofibers. We indicate the importance of testing both interferants in complex media and mechanistic interferants in the selectivity analysis of newly developed nanofiber sensor surfaces.

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“…The widespread use and discharge of antibiotics can increase their concentration in natural water bodies, affecting aquatic organisms and aquatic ecosystems [8,9] . Antibiotic residues can increase bacterial resistance and the spread of pathogenic microorganisms, posing a threat to human and animal health [10,11] . Reducing the use and discharge of antibiotics is one of the key measures to protect the health of natural water bodies [12] .…”

Section: Introductionmentioning

confidence: 99%

Preparation of a series of highly efficient porous adsorbent PGMA- N and its application in the co-removal of Cu(II) and sulfamethoxazole from water

Sun

Zhang

et al. 2023

Preprint

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This paper presents a highly efficient porous adsorbent PGMA-N prepared through a series of amination reactions between polyglycidyl methacrylate (PGMA) and different polyamines. The obtained polymeric porous materials were characterized using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), specific surface area test (BET), and elemental analysis (EA). Thereinto, the PGMA-EDA porous adsorbent exhibited excellent ability to synergistically remove Cu(II) ions and sulfamethoxazole from aqueous solutions. Moreover, we studied the effects of pH, contact time, temperature, and pollutant initial concentration on the adsorption performance of the adsorbent. The experimental results showed that the adsorption process of Cu(II) followed the pseudo-second-order kinetic model and Langmuir isotherm. The maximum adsorption capacity of PGMA-EDA for Cu(II) ions was 0.794 mmol/g. These results indicate that PGMA-EDA porous adsorbent has great potential for application in treating wastewater coexisting with heavy metals and antibiotics.

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Polyethylenimine Grafted Chitosan Nanofiber Membrane as Adsorbent for Selective Elimination of Anionic Dyes

Cited by 15 publications

References 44 publications

Liberation of photogenerated radicals from a nano-titania surface at the solid–air interface

Liberation of photogenerated radicals from a nano-titania surface at the solid–air interface

Perspective on Nanofiber Electrochemical Sensors: Design of Relative Selectivity Experiments

Preparation of a series of highly efficient porous adsorbent PGMA- N and its application in the co-removal of Cu(II) and sulfamethoxazole from water

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