Catalyst-free synthesis of poly(furfuryl alcohol) using deep eutectic solvents

Cao, Thanh Phuong; Hang, Chuc Nguyen; Vu-Quang, Hieu; Kabtamu, Daniel Manaye; Kumar, Subodh; Nguyen, Van Cuong; Cao, Xuan Thang

doi:10.1039/d1nj05723e

Cited by 6 publications

(5 citation statements)

References 48 publications

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“…The peak at 3418 cm –1 was assigned to the stretching vibration of the −OH group. The absorption peaks at 1712 and 1554 cm –1 in the FTIR spectrum are due to FA condensation, which was assigned to the carbonyl stretching of γ-diketones formed from the opening of some furan rings and the typical vibration of 2,5-disubstituted furans, respectively. Furthermore, a shoulder around 1765 cm –1 has been confirmed to be an ester formed with a partial furan ring opening. , …”

Section: Resultsmentioning

confidence: 99%

Green Synthesis of Size-Controllable Polyfurfuryl Alcohol Nanospheres as Novel Bio-adsorbents

Wang

Yan

Cong

et al. 2023

ACS Sustainable Chem. Eng.

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Nanomaterials derived from biomass preparation exhibit potential applications in the field of environmental protection. However, the synthesis methods still have some problems, including being a time-consuming and complex process and causing secondary pollution. In this work, polyfurfuryl alcohol (PFA) nanospheres are synthesized via a green method that uses water as the solvent, sodium dodecyl sulfate as the stabilizer, and pbenzenesulfonic acid monohydrate as the acid catalyst. In addition, the filtrate remained capable of preparing uniform nanospheres in five subsequent runs. Moreover, the size of PFA nanospheres could be regulated from 40 to 800 nm. The small PFA nanospheres provide a large surface area, suggesting more adsorption sites. PFA nanospheres are used first as novel bio-adsorbents for cationic dye (methylene blue) removal because of their abundant oxygen-containing functional groups and negative potential. Synthesis parameters and adsorption conditions affecting cationic dye removal, sorption mechanisms, and kinetics were studied. Results suggest that the synergistic effect of electrostatic attraction, π−π interactions, and hydrogen bonding contributes to the maximum adsorption capacity as high as 343.3 mg/g. Furthermore, the PFA nanospheres exhibited good regenerative properties. This work paves the way for the green and sustainable preparation of biomass furfuryl alcohol nanospheres.

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Section: Resultsmentioning

confidence: 99%

Green Synthesis of Size-Controllable Polyfurfuryl Alcohol Nanospheres as Novel Bio-adsorbents

Wang

Yan

Cong

et al. 2023

ACS Sustainable Chem. Eng.

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“…GO was thermally annealed at 350 °C under an inert atmosphere to obtain rGO. DES was prepared from the mixture of ZnCl 2 and ChCl as described in our previous work . First, MA (300 mg) was dissolved in DI water (3.0 mL) and the resulting solution was added to the mixture of rGO (100 mg) and DES (3.0 g).…”

Section: Methodsmentioning

confidence: 99%

“…DES was prepared from the mixture of ZnCl 2 and ChCl as described in our previous work. 38 First, MA (300 mg) was dissolved in DI water (3.0 mL) and the resulting solution was added to the mixture of rGO (100 mg) and DES (3.0 g). The reaction was allowed to occur at 60 °C for 2 h in an ultrasonic bath (GTSonic 150 W) at the frequency of 40 kHz.…”

Section: Methodsmentioning

confidence: 99%

Covalently Functionalized Graphene with Molecularly Imprinted Polymers for Selective Adsorption and Electrochemical Detection of Chloramphenicol

et al. 2023

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In this report, we have presented a novel route to attach molecularly imprinted polymers (MIPs) on the surface of reduced graphene oxide (rGO) through covalent bonding. First, the surface of rGO was modified with maleic anhydride (MA) via a Diels−Alder reaction using a deep eutectic solvent (DES). Next, 3-propyl-1-vinylimidazolium molecular units were anchored and polymerized in the presence of ethylene glycol dimethacrylate (EGDMA) using chloramphenicol (CAP) as the template. Primarily, we investigated the effect of the molar ratio of individual precursors on the adsorption capacity of synthesized materials and accordingly fabricated the electrochemical sensor for CAP detection. Electrochemical results evidenced that the covalent bonding of MIP units enhanced the sensitivity of the respective sensor toward CAP in water as well as in real honey samples with high selectivity, stability, and reproducibility. This synthesis strategy involves the covalent binding of MIP on rGO materials via click chemisty under sonication power excluding harmful solvents and energy-intensive processes and thus could be a motivation for developing future electrochemical sensors through similar "green" routes.

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“…CholineCl: ZnCl 2 (1:2 molar ratio) based DES was prepared according to our previous work. [ 35 ] PFA was prepared by dissolving FA (1.0 g) in DES under sonication at 60 °C for 20 min using an ultrasonic bath (GTSonic 150W) at the frequency of 40 kHz. Subsequently, GO (100 mg) were added to the above mixture and the reaction was further continued for 30 min.…”

Section: Methodsmentioning

confidence: 99%

One‐pot synthesis of graphene oxide/poly(furfuryl alcohol) in deep eutectic solvent: A metal‐free electrocatalyst for non‐enzymatic glucose sensor application

Quynh,

Phuong,

Khue

et al. 2022

Vietnam Journal of Chemistry

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A facile strategy is presented for the preparation of poly(furfuryl alcohol) functionalized graphene oxide (GO‐f‐PFA) by using Diels‐Alder (DA) click chemistry in deep eutectic solvent (DES), and its application in glucose sensing. The GO‐f‐PFA hybrid was obtained in a one‐pot procedure involving the polymerization reaction of furfuryl alcohol (FA) and subsequent DA reaction of poly(furfuryl alcohol) (PFA) with graphene oxide (GO). Both reactions were conducted in DES formed by the mixture of choline chloride: zinc chloride under assistance of ultrasonication without any catalyst. The highest percentage of grafted PFA in GO‐f‐PFA was 82.1 % at the DES/FA feeding weight ratio of 10. GO‐f‐PFA materials were analyzed by TGA, FTIR, XRD, Raman, SEM‐EDX and dispersion capacities were evaluated in various solvents such as water, ethanol, N,N’‐dimethylformamide, tetrahydrofuran, chloroform, and p‐xylene. GO‐f‐PFA was used as a free‐metal electrocatalytic material to fabricate the electrode for the recognition of glucose. The highest current density of GO‐f‐PFA was achieved to be 0.252 mA·cm‐2 using 10 mM glucose recorded at the potential of 0.7 V. These results have suggested the potential application of bio‐based materials for the fabrication of glucose biosensor.

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Catalyst-free synthesis of poly(furfuryl alcohol) using deep eutectic solvents

Abstract: We report a catalyst free pathway for the polymerization of furfuryl alcohol (FA) into poly(furfuryl alcohol) (PFA) using deep eutectic solvent (DES) system. DES prepared by mixing of choline chloride...

Cited by 6 publications

References 48 publications

Green Synthesis of Size-Controllable Polyfurfuryl Alcohol Nanospheres as Novel Bio-adsorbents

Green Synthesis of Size-Controllable Polyfurfuryl Alcohol Nanospheres as Novel Bio-adsorbents

Covalently Functionalized Graphene with Molecularly Imprinted Polymers for Selective Adsorption and Electrochemical Detection of Chloramphenicol

One‐pot synthesis of graphene oxide/poly(furfuryl alcohol) in deep eutectic solvent: A metal‐free electrocatalyst for non‐enzymatic glucose sensor application

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