Cellulose acetate as a convenient intermediate for the preparation of 5-acetoxymethylfurfural from biomass

Gavilà, Llorenç; Esposito, Davide

doi:10.1039/c7gc00975e

Cited by 25 publications

(12 citation statements)

References 29 publications

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“…This cellulosic derivative was found to have better durability than native cellulose. Previous research has established the solubility of cellulose acetate (with substitution degree >2) in common solvents such as tetrahydrofuran, methyl acetate, acetone, and dioxane [ 3 ]. The solubility of cellulose acetate in these solvents enhances its ability to be formed into different shapes through the phase inversion technique.…”

Section: Introductionmentioning

confidence: 99%

Characterization and Performance Evaluation of Cellulose Acetate–Polyurethane Film for Lead II Ion Removal

et al. 2020

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Global pollution from toxic metal waste has resulted in increased research on toxic metal adsorption. A cellulose acetate–polyurethane (CA–PU) film adsorbent was successfully prepared in this research. The cellulose acetate–polyurethane film adsorbent was prepared with a polycondensation reaction between cellulose acetate and methylene diphenyl diisocyanate. The CA–PU bond formation was confirmed by functional group analysis obtained from Fourier transform infrared (FTIR) spectroscopy. The obtained film was characterized for improved tensile and thermal properties with the addition of methylene diphenyl diisocyanate (MDI). The adsorption ability of the obtained film was evaluated with laser-induced breakdown spectroscopy (LIBS). The best film adsorbent from the LIBS was selected and studied for adsorption isotherm. The FTIR analysis confirmed the formation of the CA–PU bond from the polycondensation between cellulose acetate and the methylene diphenyl diisocyanate. The result showed that the addition of methylene diphenyl diisocyanate (MDI) resulted in the urethane network’s growth. The characterization result showed an improvement in the morphology, thermal stability, and tensile strength of the film. The LIBS studies showed improvement in the adsorption of Pb2+ with CA–PU compared with the neat CA. The isotherm studies revealed that Pb2+ adsorption by cellulose acetate–polyurethane film adsorbent was heterogeneously dependent on the Freundlich isotherm model (R2 = 0.97044). Overall, the polycondensation method proposed by this study enhanced the Pb2+ removal, and was comparable to those reported in previous studies.

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Section: Introductionmentioning

confidence: 99%

Characterization and Performance Evaluation of Cellulose Acetate–Polyurethane Film for Lead II Ion Removal

et al. 2020

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“…5-Acetoxymethylfurfural (AMF), which can be prepared from carbohydrates without isolating HMF, is less reactive, more stable and easily extracted from the aqueous reaction mixture. Therefore, AMF represents a good substitute for HMF [ 17 , 18 , 19 ]. Similar to HMF, AMF reacts with aniline in methanol to form imine with the yield of 98% ( Supplementary Materials, Figure S2 ).…”

Section: Resultsmentioning

confidence: 99%

Two-Step One-Pot Reductive Amination of Furanic Aldehydes Using CuAlOx Catalyst in a Flow Reactor

2020

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Aminomethylhydroxymethylfuran derivatives are well known compounds which are used in the pharmaceutical industry. Reductive amination of 5-hydroxymethylfurfural (HMF) derived from available non-edible lignocellulosic biomass is an attractive method for the synthesis of this class of compounds. In the present study, the synthesis of N-substituted 5-(hydroxymethyl)-2-furfuryl amines and 5-(acetoxymethyl)-2-furfuryl amines was performed by two-step process, which includes the condensation of furanic aldehydes (HMF and 5-acetoxymethylfurfural) with primary amines in methanol on the first step and the reduction of obtained imines with hydrogen in a flow reactor over CuAlOx catalyst derived from layered double hydroxide on the second step. This process does not require isolation and purification of intermediate imines and can be used to synthesize a number of aminomethylhydroxymethylfurans in good to excellent yield.

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“…The present work illustrates the advancement of polymeric blended membrane based on the CA/ZnO combination to reduce methylene blue from wastewater streams from textile and industrial processes. The innovation of the prepared CA-ZnO membrane is that it demonstrates increasing and great efficiency than other previously reported materials [ 25 ]. Combining ZnO nanoparticles with CA porous matrix decreases membrane fouling and increases permeation quality significantly.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of Textile Dye on Blended Cellulose Acetate Membranes

et al. 2022

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This work aimed to investigate the degradation performance of natural cellulose acetate (CA) membranes filled with ZnO nanostructures. Photocatalytic degradation of reactive toxic dye methylene blue (MB) was studied as a model reaction using UV light. A CA membrane was previously casted and fabricated through the phase inversion processes and laboratory-synthesized ZnO microparticles as filler. The prepared membrane was characterized for pore size, ultrafiltration (UF) performance, porosity, morphology using scanning electron micrographs (SEM), water contact angle and catalytic degradation of MB. The prepared membrane shows a significant amount of photocatalytic oxidation under UV. The photocatalytic results under UV-light radiation in CA filled with ZnO nanoparticles (CA/ZnO) demonstrated faster and more efficient MB degradation, resulting in more than 30% of initial concentration. The results also revealed how the CA/ZnO combination effectively improves the membrane’s photocatalytic activity toward methylene blue (MB), showing that the degradation process of dye solutions to UV light is chemically and physically stable and cost-effective. This photocatalytic activity toward MB of the cellulose acetate membranes has the potential to make these membranes serious competitors for removing textile dye and other pollutants from aqueous solutions. Hence, polymer–ZnO composite membranes were considered a valuable and attractive topic in membrane technology.

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Cellulose acetate as a convenient intermediate for the preparation of 5-acetoxymethylfurfural from biomass

Cited by 25 publications

References 29 publications

Characterization and Performance Evaluation of Cellulose Acetate–Polyurethane Film for Lead II Ion Removal

Characterization and Performance Evaluation of Cellulose Acetate–Polyurethane Film for Lead II Ion Removal

Two-Step One-Pot Reductive Amination of Furanic Aldehydes Using CuAlOx Catalyst in a Flow Reactor

Photocatalytic Degradation of Textile Dye on Blended Cellulose Acetate Membranes

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