Defining lignin nanoparticle properties through tailored lignin reactivity by sequential organosolv fragmentation approach (SOFA)

Liu, Zhihua; Hao, Naijia; Shinde, Somnath; Pu, Yunqiao; Kang, Xiaofeng; Ragauskas, Arthur J.; Yuan, Joshua S.

doi:10.1039/c8gc03290d

Cited by 105 publications

(66 citation statements)

References 64 publications

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“…These intermediate steps add substantial energy and chemical consumption and it would be ideal if the black liquor could be used as such as raw material or alternatively if the lignin particles could be produced directly from biorefinery residues. It has been shown that sequentially isolated lignin fractions from the same feedstock differ in their structural features, 185,186 and that these fractions lead to different properties of the spherical lignin particles. 186 However, there is a lack of correlation of particle properties with lignin properties from various sources and after different extent of purification.…”

Section: Conclusion and Prospectsmentioning

confidence: 99%

“…It has been shown that sequentially isolated lignin fractions from the same feedstock differ in their structural features, 185,186 and that these fractions lead to different properties of the spherical lignin particles. 186 However, there is a lack of correlation of particle properties with lignin properties from various sources and after different extent of purification. When precipitated from spent pulping liquors, lignin often contains impurities such as polysaccharides, rosin acids, and other extractives from wood.…”

Section: Conclusion and Prospectsmentioning

confidence: 99%

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Spherical lignin particles: a review on their sustainability and applications

et al. 2020

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Section: Conclusion and Prospectsmentioning

confidence: 99%

Section: Conclusion and Prospectsmentioning

confidence: 99%

Spherical lignin particles: a review on their sustainability and applications

et al. 2020

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“…A sensor material containing hierarchical zinc oxide (ZnO) nanorods grown in the presence of lignin was used for sensing of ammonia gas based on the semiconducting properties of ZnO. [108] However, ZnO nanostructures have been known for decades for gas sensing applications. [109,110]…”

Section: Sensors For Metal Ions and Hydrogen Peroxidementioning

confidence: 99%

Lignin–Inorganic Interfaces: Chemistry and Applications from Adsorbents to Catalysts and Energy Storage Materials

2020

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Lignin is one the most fascinating natural polymers due to its complex aromatic‐aliphatic structure. Phenolic hydroxyl and carboxyl groups along with other functional groups provide technical lignins with reactivity and amphiphilic character. Many different lignins have been used as functional agents to facilitate the synthesis and stabilization of inorganic materials. Herein, the use of lignin in the synthesis and chemistry of inorganic materials in selected applications with relevance to sustainable energy and environmental fields is reviewed. In essence, the combination of lignin and inorganic materials creates an interface between soft and hard materials. In many cases it is either this interface or the external lignin surface that provides functionality to the hybrid and composite materials. This Minireview closes with an overview on future directions for this research field that bridges inorganic and lignin materials for a more sustainable future.

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“…This phenomenon may attribute to the lignin recombination and condensation that happened in the acidic environment under mild conditions (TH22) after the depolymerization [31]. It is worth noting that it is easier for high content of G-type lignin or low S/G lignin to form small size nanoparticles [15]. Therefore, in order to achieve the preparation of lignin nanoparticles with smaller particle size, the reaction solvent must have the ability to dissolve more Gtype lignin.…”

Section: D-hsqc-nmr Analysismentioning

confidence: 99%

“…For example, the uniform colloidal spheres were prepared via self-assembly with alkali lignin recovered from the pulping black liquor and chemically modified by acetylating [14]. Recently, lignin nanoparticles directly prepared with lignin produced from lignocellulose pretreatment were proposed [15,16], which not only avoids lignin modification, but also realizes the utilization of waste lignin. However, the preparation of lignin nanoparticles and enzymatic hydrolysis of carbohydrates from lignocellulosic biomass are different and independent processes, therefore, the lignin with suitable structure for excellent colloidal spheres formation is usually obtained at the expense of sugar yield, due to the accessibility of carbohydrate to enzymes resulted from the destruction of lignin in the lignocellulosic biomass is not good enough.…”

Section: Introductionmentioning

confidence: 99%

Utilization of all components in biomass through high reducing sugar production and lignin nanoparticles preparation

Liu¹,

Zhuo²,

Su³

et al. 2019

Preprint

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BackgroundLignocellulosic biomass for biofuel production was considered as an effective way to develop new energy. However, the efficient sugar conversion of cellulose and practical utilization of lignin are great challenges for sustainable biorefinery. In addition, sugar conversion and lignin utilization are generally performed separately. In this study, high reducing sugar production and multiple lignin nanoparticles preparation were realized in a pattern based on tetrahydrofuran-water (THF-H2O) pretreatment of corn straw (CS). ResultsThe maximum production of the reducing sugar was 26.79 g/l, which was significantly higher than the theoretical yield of 20.65 g/l. Lignin nanoparticles with different sizes ranged from 239 to 798 nm were prepared using dissolved lignin in the supernatant fluid from different THF-H2O pretreatment conditions through self-assembly with introducing water. The formation of lignin particles with different sizes were influenced by soluble lignin characteristics in the pretreatment liquid. The lignin molecular, functional groups, and structure were explored to elucidate the effects on the variation of lignin particles sizes by GPC, FTIR, and 2D-HSQC-NMR. The guaiacyl (G)-type lignin was easier to be dissolved in the mild pretreatment liquid, contributing to form smaller lignin nanoparticles with a good dispersibility. Comparatively, a small content of syringyl- and G-type lignin which caused by the lignin depolymerization retained in the severe pretreatment liquid to form the larger sphere particles. ConclusionsThe optimal pretreatment under TH22 (THF-H2O pretreatment at 120 °C for 2 h) simultaneously realized the utilization of all components in biomass through high reducing sugar production and the smaller lignin particles preparation. This new pattern of CS pretreatment plays a novel perspective for the technical design of lignocellulosic biomass conversion.

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Defining lignin nanoparticle properties through tailored lignin reactivity by sequential organosolv fragmentation approach (SOFA)

Abstract: Sequential organosolv fragmentation approach (SOFA) enhances the self-assembling process of high-quality lignin nanoparticles (LNPs) by tailoring the lignin chemistry in biorefineries.

Cited by 105 publications

References 64 publications

Spherical lignin particles: a review on their sustainability and applications

Spherical lignin particles: a review on their sustainability and applications

Lignin–Inorganic Interfaces: Chemistry and Applications from Adsorbents to Catalysts and Energy Storage Materials

Utilization of all components in biomass through high reducing sugar production and lignin nanoparticles preparation

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