Synthesis, characterization and application of chitosan coated Fe<sub>3</sub>O<sub>4</sub>particles as an adsorbent for the removal of furfural from aqueous solution

He, Youjun; Pei, Meishan; Du, Yankai; Yu, Faqi; Wang, Luyan; Guo, Wenjuan

doi:10.1039/c4ra04098h

Cited by 16 publications

(14 citation statements)

References 31 publications

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“…In this regards, biomass conversion is a promising way to overcome the dependence of society on fossil hydrocarbons (oil, coal, and gas), especially in fuel production and energy areas [2]. Via bio-refinery, lignocellulose can be converted into relevant chemicals, such as furfural [3][4][5][6][7][8][9][10], 5-hydroxymethylfurfural (HMF) [11][12][13][14][15], and alkyl levulinates [16][17][18][19][20], among others. In particular, furfural has been recognized as a crucial bio-based platform molecule, and therefore, its valorization has been attracting researchers' attention in recent years.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Catalytic Hydrogenation of Furfural

et al. 2019

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Furfural has been considered as one of the most promising platform molecules directly derived from biomass. The hydrogenation of furfural is one of the most versatile reactions to upgrade furanic components to biofuels. For instance, it can lead to plenty of downstream products, such as (tetrahydro)furfuryl alcohol, 2-methyl(tetrahydro)furan, lactones, levulinates, cyclopentanone(l), or diols, etc. The aim of this review is to discuss recent advances in the catalytic hydrogenation of furfural towards (tetrahydro)furfuryl alcohol and 2-methyl(tetrahydro)furan in terms of different non-noble metal and noble metal catalytic systems. Reaction mechanisms that are related to the different catalytic materials and reaction conditions are properly discussed. Selective hydrogenation of furfural could be modified not only by varying the types of catalyst (nature of metal, support, and preparation method) and reaction conditions, but also by altering the reaction regime, namely from batch to continuous flow. In any case, furfural catalytic hydrogenation is an open research line, which represents an attractive option for biomass valorization towards valuable chemicals and fuels.FA is a very important monomer for the synthesis of furan resins, which are widely used in thermoset polymer matrix composites, cements, adhesives, coatings, and casting/foundry resins. This molecule is also used as a non-reactive diluent for epoxy resin, a modifier for phenolic and urea resins, an oil well, and a carbon binder. Furthermore, the salt of FA is used in the synthesis of lysine, vitamin C, lubricants, and plasticizers [22,23]. Moreover, it should be highlighted that FA is also an important intermediate for the production of further hydrogenation products (as shown in Scheme 1), such as 2-methylfuran (MF), a potential alternative fuel with better combustion performance and higher Research Octane Number (RON = 103) than that of gasoline (RON = 96.8) [24]. In other applications, MF is used in perfume intermediates, chloroquine lateral chains in medical intermediates, and as a raw material for the production of chrysanthemate pesticides [25].Moreover, tetrahydrofurfuryl alcohol (THFA) can be used as a green solvent in the pharmaceutical industry and, in addition, it constitutes an outstanding intermediate to produce dihydropyran [26], pyridine [27], tetrahydrofuran, and pentan-1,5-diol [28][29][30]. Particularly, the latest molecule is an important monomer in the plastics industry. Furthermore, 2-methyltetrahydrofuran (MTHF) is quite engaging for its possible applications in organometallic chemistry, as well as in organic reactions that are related to organocatalysis, biotransformations, and biomass processing [31]. Catalysts 2019, 9, 796 3 of 33 Catalysts 2018, 8, x FOR PEER REVIEW 3 of 36 Scheme 1. Illustrative representation of reaction pathways in furfural hydrogenation.Other downstream products of furfural hydrogenation, such as (tetrahydro)furan [32], tetrahydrofurfural [33], lactones [34][35][36][37], levulinates [38,39], cyclopentanone...

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Section: Introductionmentioning

confidence: 99%

Recent Advances in Catalytic Hydrogenation of Furfural

et al. 2019

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“…These particles have a high potential to be used in directed drug delivery applications. Formerly chitosan coated nanoparticles were synthesized by batch-wise techniques [3,4]. In this work we demonstrate the synthesis of chitosan coated iron-oxide nanoparticles in a droplet-based microfluidic device.…”

Section: Introductionmentioning

confidence: 99%

Chitosan Coated Iron-Oxide Nanoparticle Synthesis Using a Droplet Based Microfluidic Reactor

Wahab

Erdem

2019

2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems &Amp; Eurosensors XXXIII (TRANSDUCERS &Am

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A microfluidic reactor for the synthesis of chitosan coated iron-oxide nanoparticles is described. Tapered double Tjunction is used to generate droplets of reactants (iron chloride solution and chitosan solution) which were merged using a pillar array. Third reactant ammonia solution is introduced after the mixing of already merged droplets. Ammonia solution initiates the reaction and precipitates are collected at the outlet. Transmission electron microscope (TEM) imaging along with Fourier transform infrared spectroscopy (FTIR) is used to characterize the nanoparticles. These nanoparticles have applications in nano-medicine where they can be used as drug carriers.

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“…To date, a variety of methods including extraction, chromatography, and adsorption have been developed to separate the lignocellulose-derived organic acids and aldehydes. − Among them, the adsorption method is particularly attractive because of the low cost and easy operation. Polymeric, carbonaceous, mobile composite material (MCM), and zeolite adsorbents have been widely used to adsorb aldehydes such as furfural and HMF in sugar solutions. − However, carbonaceous adsorbents can undesirably adsorb sugars due to the presence of oxygen groups, which can greatly decrease the hydrophobicity of adsorbent. − Zhang et al found that activated carbon adsorbed fermentation sugars and the adsorption capacity could reach as high as 120 mg·g –1 when it was present during ethanol fermentation .…”

Section: Introductionmentioning

confidence: 99%

Cross-Linked Polyethylenimine for Selective Adsorption and Effective Recovery of Lignocellulose-Derived Organic Acids and Aldehydes

Yang

Runge

2018

ACS Sustainable Chem. Eng.

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Lignocellulose materials are sustainable resources to produce various value-added organic acids and aldehydes. However, selective separation and effective recoveries of the lignocellulose-derived organic acids and aldehydes from their sugar precursors and byproducts remain challenges. This study demonstrated that cross-linked polyethylenimine (CPEI) as a reactive adsorbent could selectively adsorb the lignocellulose-derived organic acids and aldehydes without notably adsorbing sugars. The results also showed that the selective adsorption of aldehyde over organic acid could be further realized by adding inexpensive neutral salts. The adsorbed organic acids and aldehydes could be effectively separated and recovered, and the adsorbent could be easily regenerated for reuse.

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Synthesis, characterization and application of chitosan coated Fe₃O₄particles as an adsorbent for the removal of furfural from aqueous solution

Cited by 16 publications

References 31 publications

Recent Advances in Catalytic Hydrogenation of Furfural

Recent Advances in Catalytic Hydrogenation of Furfural

Chitosan Coated Iron-Oxide Nanoparticle Synthesis Using a Droplet Based Microfluidic Reactor

Cross-Linked Polyethylenimine for Selective Adsorption and Effective Recovery of Lignocellulose-Derived Organic Acids and Aldehydes

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Synthesis, characterization and application of chitosan coated Fe3O4particles as an adsorbent for the removal of furfural from aqueous solution

Cited by 16 publications

References 31 publications

Recent Advances in Catalytic Hydrogenation of Furfural

Recent Advances in Catalytic Hydrogenation of Furfural

Chitosan Coated Iron-Oxide Nanoparticle Synthesis Using a Droplet Based Microfluidic Reactor

Cross-Linked Polyethylenimine for Selective Adsorption and Effective Recovery of Lignocellulose-Derived Organic Acids and Aldehydes

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Synthesis, characterization and application of chitosan coated Fe₃O₄particles as an adsorbent for the removal of furfural from aqueous solution