Preparation of pyridine-modified cotton fibers for anionic dye treatment

Huang, Zhiyu; Wu, Peng; Yin, Yankun; Zhou, Xiangdong; Fu, Lu; Wang, Luoxin; Chen, Shaohua; Tang, Xu

doi:10.1016/j.reactfunctpolym.2021.105155

Cited by 14 publications

(9 citation statements)

References 49 publications

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“…Meanwhile, the absorption peak at 1604 cm –1 was attributed to the amide group, which further demonstrated the successful synthesis of AP-G1.0. , The FTIR spectrum of AP-G1.5 is similar to that of AP-G0.5, demonstrating that the synthesis of AP-G1.5 was also achieved. After the amidation of AP-G0.5 and AP-G1.5 with AMP, the absorption of carbonyl ester groups disappears and the peak of pyridine is present at 1513 cm –1 in the spectra of AP-G1.0-AMP and AP-G2.0-AMP, which demonstrates that the targeted biosorbents were synthesized …”

Section: Resultsmentioning

confidence: 90%

Synthesis of Aminomethylpyridine-Decorated Polyamidoamine Dendrimer/Apple Residue for the Efficient Capture of Cd(II)

Cong,

Wu,

Wang

et al. 2024

Langmuir

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Water contamination irritated by Cd(II) brings about severe damage to the ecosystem and to human health. The decontamination of Cd(II) by the adsorption method is a promising technology. Here, we construct aminomethylpyridinefunctionalized polyamidoamine (PAMAM) dendrimer/apple residue biosorbents (AP-G1.0-AMP and AP-G2.0-AMP) for adsorbing Cd(II) from aqueous solution. The adsorption behaviors of the biosorbents for Cd(II) were comprehensively evaluated. The maximum adsorption capacities of AP-G1.0-AMP and AP-G2.0-AMP for Cd(II) are 1.40 and 1.44 mmol•g −1 at pH 6. The adsorption process for Cd(II) is swift and can reach equilibrium after 120 min. The film diffusion process dominates the adsorption kinetics, and a pseudo-second-order model is appropriate to depict this process. The uptake of Cd(II) can be promoted by increasing concentration and temperature. The adsorption isotherm follows the Langmuir model with a chemisorption mechanism. The biosorbents also display satisfied adsorption for Cd(II) in real aqueous media. The adsorption mechanism indicates that C−N, N�C, C−O, CONH, N−H, and O−H groups participate in the adsorption for Cd(II). The biosorbents display a good regeneration property and can be reused with practical value. The as-prepared biosorbents show great potential for removing Cd(II) from water solutions with remarkable significance.

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Section: Resultsmentioning

confidence: 90%

Synthesis of Aminomethylpyridine-Decorated Polyamidoamine Dendrimer/Apple Residue for the Efficient Capture of Cd(II)

Cong,

Wu,

Wang

et al. 2024

Langmuir

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“…Along with other proteins and cell debris, the nitrogen-based fertilizer molecule absorbs into the cotton fiber's lumen. All of these are absorbed on the cotton ball's surface [48][49][50][51] . In GO-PEG-g-Cotton, the content of carbon, and oxygen got significantly increased as compared to pristine cotton.…”

Section: Resultsmentioning

confidence: 99%

Cotton functionalized with polyethylene glycol and graphene oxide for dual thermoregulating and UV-protection applications

Kumar

Kebaïli

Boukhris

et al. 2023

Sci Rep

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A thermoregulating smart textile based on phase change material (PCM) polyethylene glycol (PEG) was prepared by chemically grafting carboxyl-terminated PEG onto cotton. Further deposits of graphene oxide (GO) nanosheets were made on the PEG grafted cotton (PEG-g-Cotton) to improve the thermal conductivity of the fabric and to block harmful UV radiation. The GO-PEG-g-Cotton was characterized by Attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), Raman spectroscopy, X-ray diffraction (XRD), x-ray photoelectron spectroscopy (XPS), and field emission-scanning electron microscopy (FE-SEM). With an enthalpy of 37 and 36 J/g, respectively, the DSC data revealed that the functionalized cotton's melting and crystallization maxima occurred at 58 °C and 40 °C, respectively. The thermogravimetric analysis (TGA) presented that GO-PEG-g-Cotton was thermally more stable in comparison to pure cotton. The thermal conductivity of PEG-g-Cotton increased to 0.52 W/m K after GO deposition, while pure cotton conductivity was measured as 0.045 W/m K. The improvement in the UV protection factor (UPF) of GO-PEG-g-Cotton was observed indicating excellent UV blocking. This temperature-regulating smart cotton offers a high thermal energy storage capability, better thermal conductivity, thermal stability, and excellent UV protection.

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“…This is because the adsorption capacity of MO not only depends on the volume of pores but also depends on electrostatic adsorption, which plays an important role. 32 MO is an anionic dye in aqueous solution. 33 The three MOF composites are positively charged in aqueous solution with varying value (Fig.…”

Section: Resultsmentioning

confidence: 99%

In or on, a study of the influence of the binding site for TiO₂ and MIL-101(Cr)

Lin

Chen

et al. 2023

Dalton Trans.

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Preparation of pyridine-modified cotton fibers for anionic dye treatment

Cited by 14 publications

References 49 publications

Synthesis of Aminomethylpyridine-Decorated Polyamidoamine Dendrimer/Apple Residue for the Efficient Capture of Cd(II)

Synthesis of Aminomethylpyridine-Decorated Polyamidoamine Dendrimer/Apple Residue for the Efficient Capture of Cd(II)

Cotton functionalized with polyethylene glycol and graphene oxide for dual thermoregulating and UV-protection applications

In or on, a study of the influence of the binding site for TiO₂ and MIL-101(Cr)

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Preparation of pyridine-modified cotton fibers for anionic dye treatment

Cited by 14 publications

References 49 publications

Synthesis of Aminomethylpyridine-Decorated Polyamidoamine Dendrimer/Apple Residue for the Efficient Capture of Cd(II)

Synthesis of Aminomethylpyridine-Decorated Polyamidoamine Dendrimer/Apple Residue for the Efficient Capture of Cd(II)

Cotton functionalized with polyethylene glycol and graphene oxide for dual thermoregulating and UV-protection applications

In or on, a study of the influence of the binding site for TiO2 and MIL-101(Cr)

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In or on, a study of the influence of the binding site for TiO₂ and MIL-101(Cr)