Fabrication of Functional Carbon/Magnetic Nanocomposites as A Promising Model of Utilization of Used Crosslinked Polymers

Alosmanov, Rasim; Imanova, J.R.; Wolski, Karol; Ziemmermann, Ralf; Fiejdasz, Sylwia; Przewoźnik, J.; Goc, Kamil; Kapusta, Cz.; Zapotoczny, Szczepan; Szuwarzyński, Michał

doi:10.3390/ma11122595

Cited by 5 publications

(5 citation statements)

References 48 publications

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“…On the other hand, the diffraction patterns of the HMs exhibited small peaks at around 28.2° and 35.5° (marked with * in Figure 5 ), which correspond to the (−311) and (221) planes of iron chloride hydrate (ICDD card 033-0645), whose space group is C2/m. This observation confirms the presence of Fe 3+ cations within the structures [ 49 ]. The low intensity of the peaks in the FucoPol HMs’ patterns can be ascribed to the low amount of Fe 3+ in the structures ( Table 1 ) [ 49 ].…”

Section: Resultssupporting

confidence: 85%

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Novel Hydrogel Membranes Based on the Bacterial Polysaccharide FucoPol: Design, Characterization and Biological Properties

et al. 2023

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FucoPol, a fucose-rich polyanionic polysaccharide, was used for the first time for the preparation of hydrogel membranes (HMs) using Fe3+ as a crosslinking agent. This study evaluated the impact of Fe3+ and FucoPol concentrations on the HMs’ strength. The results show that, above 1.5 g/L, Fe3+ concentration had a limited influence on the HMs’ strength, and varying the FucoPol concentration had a more significant effect. Three different FucoPol concentrations (1.0, 1.75 and 2.5 wt.%) were combined with Fe3+ (1.5 g/L), resulting in HMs with a water content above 97 wt.% and an Fe3+ content up to 0.16 wt.%. HMs with lower FucoPol content exhibited a denser porous microstructure as the polymer concentration increased. Moreover, the low polymer content HM presented the highest swelling ratio (22.3 ± 1.8 g/g) and a lower hardness value (32.4 ± 5.8 kPa). However, improved mechanical properties (221.9 ± 10.2 kPa) along with a decrease in the swelling ratio (11.9 ± 1.6 g/g) were obtained for HMs with a higher polymer content. Furthermore, all HMs were non-cytotoxic and revealed anti-inflammatory activity. The incorporation of FucoPol as a structuring agent and bioactive ingredient in the development of HMs opens up new possibilities for its use in tissue engineering, drug delivery and wound care management.

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Section: Resultssupporting

confidence: 85%

“…This observation confirms the presence of Fe 3+ cations within the structures [ 49 ]. The low intensity of the peaks in the FucoPol HMs’ patterns can be ascribed to the low amount of Fe 3+ in the structures ( Table 1 ) [ 49 ].…”

Section: Resultssupporting

confidence: 85%

Novel Hydrogel Membranes Based on the Bacterial Polysaccharide FucoPol: Design, Characterization and Biological Properties

et al. 2023

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“…Furthermore, CMC- g -PNaA shows broad peaks at around 22.46° and 32.15°, which demonstrate that the crystalline region of CMC is destroyed after grafting of AA onto CMC. Meanwhile, CMC- g -PNaA/FeCl 3 depicts a broad peak with two small intense peaks at around 27.15° and 35.24°, due to the ionic cross-linking of CMC- g -PNaA with Fe 3+ ions, as shown in Figure 4 [ 37 ]. After ionic cross-linking, the XRD peaks of CMC- g -PNaA were shifted from the lower to higher 2θ values, which indicate the successful ionic cross-linking of Fe 3+ with CMC- g -PNaA chains.…”

Section: Resultsmentioning

confidence: 99%

Nanoporous Sodium Carboxymethyl Cellulose-g-poly (Sodium Acrylate)/FeCl3 Hydrogel Beads: Synthesis and Characterization

Kumar

Priyadarshi

Sauraj

et al. 2020

Gels

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Novel sodium carboxymethyl cellulose-g-poly (sodium acrylate)/Ferric chloride (CMC-g-PNaA/FeCl3) nanoporous hydrogel beads were prepared based on the ionic cross-linking between CMC-g-PNaA and FeCl3. The structure of CMC and CMC-g-PNaA were elucidated by Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR) spectroscopy, and the elemental composition was analyzed by energy dispersive X-ray analysis (EDX). The physicochemical properties of the CMC-g-PNaA/FeCl3 hydrogel beads were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM) and thermogravimetric analysis (TGA). The swelling percentage of hydrogel beads was studied at different time periods. The obtained CMC-g-PNaA/FeCl3 hydrogel beads exhibited a higher nanoporous morphology than those of CMC-g-PNaA and CMC beads. Furthermore, an AFM image of the CMC-g-PNaA/FeCl3 beads shows granule type topology. Compared to the CMC-g-PNaA (189 °C), CMC-g-PNaA/FeCl3 hydrogel beads exhibited improvement in thermal stability (199 °C). Furthermore, CMC-g-PNaA/FeCl3 hydrogel beads depicted a higher swelling percentage capacity of around 1452%, as compared to CMC-g-PNaA (1096%). Moreover, this strategy with preliminary results could be useful for the development of polysaccharide-based hybrid hydrogel beads for various potential applications.

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“…The elemental composition of diatomite is as follows: 82.21wt% SiO 2 , 4.81wt% Al 2 O 3 , 1.82wt% CaO, 1.61wt% MgO, 1.33wt% Fe 2 O 3 , 0.48wt% K 2 O 0.14wt% Na 2 O. [29] Various hydroxyl polymerized cations are introduced by cation exchange, and hydroxyl and water in hydroxyl polymerized cations are removed by drying, [30,31] calcination and other steps. After the "pillar" like supports are formed between clay layers, a new material pillared diatomite with two-dimensional pore molecular sieve structure is formed.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of CO₂ by alkali metals and weak alkali rare earth metals supported on aluminum pillared diatomite

Zhou

Wang

2022

E3S Web Conf.

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In this study, aluminum pillared diatomite loaded with alkali metals and weak alkali rare earth metals was prepared by impregnation method with cheap and abundant diatomite as raw material. Aluminum pillared diatomite loaded with alkali metals Cs, K, Na, Li and aluminum pillared diatomite loaded with weakly alkaline rare earth metals La, Nd, Tm were prepared respectively. Its physicochemical properties were studied by XRPD and N2 adsorption/desorption techniques, and characterized by thermogravimetric analysis, CO2 temperature programmed desorption and FTIR. The results show that the adsorption capacity of 5Cs/Al-PILC for CO2 is the highest, which is 2.355 mmol/g. The specific surface area and porosity of diatomite were improved by aluminum pillared modification, but the specific surface area and micropore content of metal loaded diatomite decreased slightly. The effect of alkalinity is greater than that of micropore amount. The adsorption performance of aluminum pillared diatomite adsorbent is affected by the synergistic effect of specific surface area, total micropore volume and alkalinity. Alkalinity is the main factor affecting the adsorption capacity. The adsorption process of CO2 on the sample is mainly chemical adsorption. The addition of appropriate amount of metal can enhance the alkalinity of the sample, and the adsorbed CO2 exists in the form of bicarbonate and carbonate. The adsorbent made from diatomite has low cost, can be used in industrial production, and has broad development prospects.

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Fabrication of Functional Carbon/Magnetic Nanocomposites as A Promising Model of Utilization of Used Crosslinked Polymers

Cited by 5 publications

References 48 publications

Novel Hydrogel Membranes Based on the Bacterial Polysaccharide FucoPol: Design, Characterization and Biological Properties

Novel Hydrogel Membranes Based on the Bacterial Polysaccharide FucoPol: Design, Characterization and Biological Properties

Nanoporous Sodium Carboxymethyl Cellulose-g-poly (Sodium Acrylate)/FeCl3 Hydrogel Beads: Synthesis and Characterization

Adsorption of CO₂ by alkali metals and weak alkali rare earth metals supported on aluminum pillared diatomite

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Fabrication of Functional Carbon/Magnetic Nanocomposites as A Promising Model of Utilization of Used Crosslinked Polymers

Cited by 5 publications

References 48 publications

Novel Hydrogel Membranes Based on the Bacterial Polysaccharide FucoPol: Design, Characterization and Biological Properties

Novel Hydrogel Membranes Based on the Bacterial Polysaccharide FucoPol: Design, Characterization and Biological Properties

Nanoporous Sodium Carboxymethyl Cellulose-g-poly (Sodium Acrylate)/FeCl3 Hydrogel Beads: Synthesis and Characterization

Adsorption of CO2 by alkali metals and weak alkali rare earth metals supported on aluminum pillared diatomite

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Adsorption of CO₂ by alkali metals and weak alkali rare earth metals supported on aluminum pillared diatomite