High value utilization of biomass: selective catalytic transformation of lignocellulose into bio-based 2,5-dimethylphenol

He, Yuting; Luo, Yuehui; Yang, Mingyu; Zhang, Yanhua; Fan, Mingming; Li, Quanxin

doi:10.1039/d2cy00382a

Cited by 12 publications

(10 citation statements)

References 40 publications

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“…13,37,43 To analyze ROS in the Fe-HP pretreatment process, the ROS capture experiments were conducted by using 5,5-dimethyl-1-pyrroline N-oxide (DMPO) as a capture agent, combined with an in-situ electron paramagnetic resonance (EPR) analysis. 36 As shown in Fig. 9, in the absence of iron ion catalyst, no obvious EPR signal was observed in the hydrogen peroxide pretreatment (HP pretreatment) process.…”

Section: Influence Of Other Biomass Pretreatment Parameters On Enzymo...mentioning

confidence: 90%

“…Here, DMPO (5,5-dimethyl-1-pyrroline N-oxide) was chosen as a capture agent of reactive oxygen species, which combined with in situ electron paramagnetic resonance analysis (JES-FA200, JEOL, Japan). 35,36 All experiments were usually repeated three times under the same conditions and the average values were given. The standard deviation was calculated to evaluate the experimental precision.…”

Section: % ð þ=mentioning

confidence: 99%

“…Generally, increasing the temperature is beneficial for the diffusion of iron ion catalyst and promotes the formation of hydroxyl radicals by the metal ion-catalyzed decomposition reaction of hydrogen peroxide. 35,36 However, excessively high temperatures (over 75 °C) may accelerate the thermal decomposition of hydrogen peroxide. 35,36 Therefore, excessively high temperature (over 75 °C) may reduce the oxidation and degradation efficiency of biomass pretreatment (Fig.…”

Section: Influence Of Other Biomass Pretreatment Parameters On Enzymo...mentioning

confidence: 99%

“…35,36 However, excessively high temperatures (over 75 °C) may accelerate the thermal decomposition of hydrogen peroxide. 35,36 Therefore, excessively high temperature (over 75 °C) may reduce the oxidation and degradation efficiency of biomass pretreatment (Fig. S1 in Supporting information).…”

Section: Influence Of Other Biomass Pretreatment Parameters On Enzymo...mentioning

confidence: 99%

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Iron ion catalyzed hydrogen peroxide pretreatment for bio‐jet fuel production from straw biomass

Zhu,

Zhang,

et al. 2024

J of Chemical Tech & Biotech

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BACKGROUNDThe development of efficient and green pretreatment pathway is of great significance for promoting biofuel production from lignocellulosic waste. The purpose of this work was to evaluate that iron ion‐catalyzed hydrogen peroxide pretreatment can be used as an environmentally friendly pretreatment way for bio‐jet fuel production using straw.RESULTSThe effects of iron ion‐catalyzed hydrogen peroxide pretreatment (Fe‐HP) on the enzymatic hydrolysis, fermentation and bio‐jet fuel production using straw were investigated. It was found that the iron ion‐catalyzed hydrogen peroxide pretreatment significantly improved the enzymatic hydrolysis and fermentation efficiency of straw biomass. Subsequently, the directional catalytic transformation of straw‐derived fermentation broth to bio‐jet fuels was achieved using a dual functional catalyst (HSAPO34/NiHBET). High conversion (94.9%) and good jet‐fuel selectivity (77.3%) were obtained in the conversion process of straw. On account of the biomass characterization and the analysis of reactive oxygen species during the Fe‐HP pretreatment, the role and mechanism of the Fe‐HP pretreatment was addressed.CONCLUSIONThe Fe‐HP pretreatment can be used as an environmentally friendly pretreatment way for jet fuel production from straw biomass. Fe‐HP pretreatment increased sugar yield and sugar concentration during enzymatic hydrolysis, which was beneficial for subsequent fermentation and bio‐jet fuel production. The reactive oxygen species take a prominent role in the Fe‐HP pretreatment of lignocellulose. © 2024 Society of Chemical Industry (SCI).

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Section: Influence Of Other Biomass Pretreatment Parameters On Enzymo...mentioning

confidence: 90%

Section: % ð þ=mentioning

confidence: 99%

Section: Influence Of Other Biomass Pretreatment Parameters On Enzymo...mentioning

confidence: 99%

Section: Influence Of Other Biomass Pretreatment Parameters On Enzymo...mentioning

confidence: 99%

See 2 more Smart Citations

Iron ion catalyzed hydrogen peroxide pretreatment for bio‐jet fuel production from straw biomass

Zhu,

Zhang,

et al. 2024

J of Chemical Tech & Biotech

Self Cite

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“…exhibit excellent mechanical properties that is comparable to Kevlar fibers (Moon et al 2011) or steel (Bharimalla et al 2017), which are attribute to the abundant hydrogen bonding that constitutes the highly crystalline oriented structure of nanoscale fibrils (Kruer-Zerhusen et al 2017). But using cellulous entirely "naturally" limits its usefulness (He et al 2022), it is worth noting that the high value utilization of cellulose requires dissolution and regeneration processes (Acharya et al 2021). Usually, the solution processing route includes structural dissociation (Deng et al 2022) and regeneration (Sirviö 2019), and the regenerated structures decide the properties and applications of the cellulosic materials (Qiu et al 2022).…”

Section: Introductionmentioning

confidence: 99%

Regulations of hydrophilicity of cellulosic nanosheets by polarity of coagulation bath

Huang

Guo

et al. 2023

Preprint

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Regeneration from cellulose solution is an effective way for processing and regulating the cellulose-based materials, during which the coagulation bath plays an important role that has been paid insufficient attention. Herein, we investigate the effect of polarity of the coagulation baths on the hydrophilicity of the regenerated cellulose, and the results show that polarity of the coagulation bath affects the crystalline assembly along different crystal plane by regulating the molecular interactions, leading to discriminating surfaces of hydrophilicity. Strong-polar coagulation bath, such as H2O, induces the regeneration of cellulosic molecules along 11¯0 crystal plane, leading to form hydrophilic nanosheets. Lowering the polarity of the coagulation baths results in fragmenting the morphology and reducing the hydrophilicity of the nanosheets that regenerate along the 110 or 020 crystal planes. Molecular dynamics simulations reveal the mechanisms for the interactions between the polar groups in cellulosic molecules and the hydrophilic facet of the regenerated cellulose. During the regeneration process, the cellulosic molecules are assembled under the influence of van der Waals interactions, resulting in crystallizing along the direction of 110 face to form the two-dimensional nanosheets. As the polarity of the coagulation bath changes from strong to weak, the assembly regeneration evolves from along 11¯0 to 110 or 020 crystal planes, which is recognized by the interaction changing from Van der Waals to hydrogen bond in cellulosic chains. As a result, the cellulose regenerates two-dimensional nanosheets with different hydrophilicity on the surface. The experimental and calculating results provide the feasibility for structural regulation of regenerated cellulosic materials with demand performance of different hydrophilicity.

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A green biomass pretreatment using iron ion-catalyzed hydrogen peroxide for lignocellulose fermentation and biofuel production

Zhu,

Zhang,

Zhu

et al. 2024

Cellulose

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High value utilization of biomass: selective catalytic transformation of lignocellulose into bio-based 2,5-dimethylphenol

Abstract: A new strategy for the synthesis of high-value biochemical 2,5-dimethylphenol was constructed by lignocellulose catalytic pyrolysis and selective hydroxylation.

Cited by 12 publications

References 40 publications

Iron ion catalyzed hydrogen peroxide pretreatment for bio‐jet fuel production from straw biomass

Iron ion catalyzed hydrogen peroxide pretreatment for bio‐jet fuel production from straw biomass

Regulations of hydrophilicity of cellulosic nanosheets by polarity of coagulation bath

A green biomass pretreatment using iron ion-catalyzed hydrogen peroxide for lignocellulose fermentation and biofuel production

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