Heterogeneous Cr-zeolites (USY and Beta) for the conversion of glucose and cellulose to 5-hydroxymethylfurfural (HMF)

Sezgin, Esra; Keçeci, Merve Esen; Akmaz, Solmaz; Koç, Serkan Naci

doi:10.1007/s10570-019-02702-8

Cited by 51 publications

(29 citation statements)

References 33 publications

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“…Zeolites that were modified with metal ions have been reported for the dehydration of carbohydrates into 5-HMF. In this context, calcined USY- and Beta zeolites that were modified with Cr(III) ions, were shown to efficiently promote the obtainment of 5-HMF from glucose and cellulose [ 50 ], in [bmim][Cl] as a solvent, with yields of 59% and 34%, respectively, after 1 h, at 130 °C. However, significant leaching of chromium in IL occurred, which prevented recycling of the catalyst.…”

Section: Heterogeneous Catalysismentioning

confidence: 99%

The Role Played by Ionic Liquids in Carbohydrates Conversion into 5-Hydroxymethylfurfural: A Recent Overview

Marullo

D’Anna

2022

Molecules

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Obtaining industrially relevant products from abundant, cheap, renewable, and low-impacting sources such as lignocellulosic biomass, is a key step in reducing consumption of raw fossil materials and, consequently, the environmental footprint of such processes. In this regard, a molecule that is similar to 5-hydroxymethylfurfural (5-HMF) plays a pivotal role, since it can be produced from lignocellulosic biomass and gives synthetic access to a broad range of industrially important products and polymers. Recently, ionic liquids (ILs) have emerged as suitable solvents for the conversion of biomass and carbohydrates into 5-HMF. Herein, we provide a bird’s-eye view on recent achievements about the use of ILs for the obtainment of 5-HMF, covering works that were published over the last five years. In particular, we first examine reactions involving homogeneous catalysis as well as task-specific ionic liquids. Then, an overview of the literature addressing the use of heterogeneous catalysts, including enzymes, is presented. Whenever possible, the role of ILs and catalysts driving the formation of 5-HMF is discussed, also comparing with the same reactions that are performed in conventional solvents.

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Section: Heterogeneous Catalysismentioning

confidence: 99%

The Role Played by Ionic Liquids in Carbohydrates Conversion into 5-Hydroxymethylfurfural: A Recent Overview

Marullo

D’Anna

2022

Molecules

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“…Thus, the catalysts for the conversion of cellulose into HMF generally need Brønsted and Lewis acids. The catalysts developed for the conversion of cellulose into HMF could be roughly divided into three species of acidic ionic liquids (Kumar et al 2021b;Xuan et al 2016), acidic metal salts (Shen et al 2020;Shi et al 2013;Yang et al 2012) and solid acids (Cao et al 2019a;Jin et al 2021;Li et al 2018a;Sezgin et al 2019;Tang and Su 2019;Xia et al 2016;Xu et al 2018). Although high HMF yields of ~ 70% have been obtained from cellulose with several acidic ionic liquids or solid acids as catalysts (Cao et al 2019a;Enomoto et al 2018;Kumar et al 2021b;Lai et al 2020), the drawbacks of such catalysts, including the high cost and time-consuming preparation, prevent the commercial production of HMF from cellulosic biomass with such catalysts.…”

Section: Introductionmentioning

confidence: 99%

Conversion of cellulose into 5-hydroxymethylfurfural in an H2O/tetrahydrofuran/cyclohexane biphasic system with Al2(SO4)3 as the catalyst

et al. 2022

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aqueous phase under the reaction temperature, jointly leading to high V org /V aque , high C[Al 2 (SO 4 ) 3 ] aque and low C[Al 2 (SO 4 ) 3 ] org in the biphasic system. All of these results yield the excellent performance of these biphasic systems in the conversion of cellulose into HMF. The addition of CHX into the biphasic system can decrease the solubility of Al 2 (SO 4 ) 3 in the organic phase, thus improving the stability of HMF in the reaction system. The influences of catalyst usage, reaction temperature and time, and cellulose/ solvent ratio were all explored, and a high HMF yield of 71.2% was obtained in the H 2 O-THF-CHX biphasic system with an H 2 O/THF/CHX volume ratio of 3/16/3 under optimized conditions.

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“…Nanoparticles (particle diameter < 100 nm), such as titanium dioxide (TiO 2 ) and zinc oxide (ZnO), have been widely studied due to their significant antimicrobial potentials, especially valuable to antibiotic-resistant bacteria [ 14 , 15 ]. For example, when Escherichia coli ( E. coli ) colonies were exposed to surfaces treated with nanoparticles, prevention in further bacteria growth was observed [ 16 ]. The nanoparticle antimicrobial capacities can be further enhanced by ultraviolet (UV) illumination due to the photocatalysis effects of these nanoparticles [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Utilization of Antibacterial Nanoparticles in Photocurable Additive Manufacturing of Advanced Composites for Improved Public Health

2021

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This paper presents the additive manufacturing and characterization of nanoparticle-reinforced photocurable resin-based nanocomposites with a potential antimicrobial function for improved public health applications. Two types of photocurable resins are reinforced by titanium dioxide (TiO2) or zinc oxide (ZnO) nanoparticles with average diameters in the 10–30 nm range to provide antimicrobial properties. The developed nanocomposites can be additively manufactured using the digital light processing method with an outstanding surface quality and precise geometrical accuracy. Experimental characterizations are conducted to investigate key mechanical properties of the 3D printed nanocomposites, including Young’s Modulus, tensile strength, and abrasion resistance. Specimens produced were observed to demonstrate the following characteristics during testing. Tensile strength increased by 42.2% at a maximum value of 29.53 MPa. The modulus of elasticity increased by 14.3%, and abrasion resistance increased by 15.8%. The proper dispersion of the nanoparticles within the cured resin is validated by scanning electron images. The wettability and water absorption testing results indicate that the developed nanocomposites have an outstanding water resistance capability. The pairing of digital light processing with these novel nanocomposites allows for the creation of complex composite geometries that are not capable through other manufacturing processes. Therefore, they have the potential for long-term usage to improve general public health with antimicrobial functionality. The pairing of an unmodified photocurable resin with a 1% ZnO concentration demonstrated the most promise for commercial applications.

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Heterogeneous Cr-zeolites (USY and Beta) for the conversion of glucose and cellulose to 5-hydroxymethylfurfural (HMF)

Cited by 51 publications

References 33 publications

The Role Played by Ionic Liquids in Carbohydrates Conversion into 5-Hydroxymethylfurfural: A Recent Overview

The Role Played by Ionic Liquids in Carbohydrates Conversion into 5-Hydroxymethylfurfural: A Recent Overview

Conversion of cellulose into 5-hydroxymethylfurfural in an H2O/tetrahydrofuran/cyclohexane biphasic system with Al2(SO4)3 as the catalyst

Utilization of Antibacterial Nanoparticles in Photocurable Additive Manufacturing of Advanced Composites for Improved Public Health

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