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学者姓名：帅李
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Abstract ：
Cellulose acetate (CA) is a versatile biopolymer derivative widely used in consumer products such as cigarette filters, textiles, and plastics. The extensive use of CA-based products generates substantial plastic waste, which can persist in the environment for over a decade due to its low biodegradability, posing serious environmental challenges. Herein, we report a one-step conversion process that transforms CA plastic waste into 5-hydroxymethylfurfural (HMF) while simultaneously recovering acetic acid. By employing AlCl3 as a catalyst in an acetone-water solvent system at 160 degrees C for 50 min, CA exhibited a 53.7 % HMF yield, a threefold increase compared to untreated cellulose, while also achieving a 97.3 % theoretical yield of acetic acid. The HMF yield exceeded 50 % when cigarette filters or CA fabrics were used as substrates. Molecular dynamics simulations revealed that the acetyl groups in CA enhance its coordination with acetone molecules, reducing the probability of protonation at the C1 and C4 oxygen atoms of the CA monomer and thereby suppressing the formation of undesired byproducts. Furthermore, the in-situ regenerated acetic acid actively promotes the HMF production. This study establishes a viable pathway for upcycling CA waste while advancing sustainable management strategies for CA-based plastics, offering a promising solution to mitigate environmental impacts.
Keyword ：
5-hydroxymethylfurfural 5-hydroxymethylfurfural Cellulose acetate Cellulose acetate Circular economy Circular economy Plastic waste Plastic waste
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| GB/T 7714 | Gong, Chunxiao , Ju, Zhaoyang , Lin, Qixuan et al. One-step valorization of cellulose acetate plastic waste into 5-hydroxymethylfurfural [J]. | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2026 , 381 . |
| MLA | Gong, Chunxiao et al. "One-step valorization of cellulose acetate plastic waste into 5-hydroxymethylfurfural" . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY 381 (2026) . |
| APA | Gong, Chunxiao , Ju, Zhaoyang , Lin, Qixuan , Lv, Xianqing , Jr, Richard Lee Smith , Xu, Lujiang et al. One-step valorization of cellulose acetate plastic waste into 5-hydroxymethylfurfural . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2026 , 381 . |
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Development of sustainable solvents for biomass biorefining remains a pivotal challenge of green chemistry. This study presented a circular biorefining strategy that valorized hemicelluloses into biobased solvent diformylxylose (DFX; Hansen solubility parameter: 21.4 MPa-1/2) for acetal-protection pretreatment. The DFX-H2O cosolvent system (90/10, w/w), with addition of formaldehyde and HCl, showed a decent yield of acetal-protected lignin (84.7%) and enzymatic conversion of acetal-protected cellulose after deprotection by acid hydrolysis (82.9%). Crucially, hemicelluloses-derived xylose was concurrently converted into additional DFX in situ during pretreatment, sustaining the delignification process. The spent DFX (including newly formed) was effectively recovered by crystallization and the isolated acetal-protected lignin was upgraded to monomers via hydrogenolysis at near-theoretical yields (46.5%). This work demonstrates a self-reinforcing cycle where a biomass component is transformed into the key solvent enabling efficient fractionation.
Keyword ：
Biomass Biomass Enzymatic hydrolysis Enzymatic hydrolysis Hansen solubility parameter Hansen solubility parameter Hydrogenolysis Hydrogenolysis Pretreatment Pretreatment
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| GB/T 7714 | Lv, Xianqing , Zhang, Zhuonan , Gong, Zhenggang et al. Efficient fractionation of lignocellulosic biomass with in-situ generated diformylxylose as renewable solvent [J]. | BIORESOURCE TECHNOLOGY , 2026 , 440 . |
| MLA | Lv, Xianqing et al. "Efficient fractionation of lignocellulosic biomass with in-situ generated diformylxylose as renewable solvent" . | BIORESOURCE TECHNOLOGY 440 (2026) . |
| APA | Lv, Xianqing , Zhang, Zhuonan , Gong, Zhenggang , Yang, Guangxu , Shuai, Li . Efficient fractionation of lignocellulosic biomass with in-situ generated diformylxylose as renewable solvent . | BIORESOURCE TECHNOLOGY , 2026 , 440 . |
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Classical production of construction particleboards with high-grade wood and formaldehyde-based binders induces forest depletion and pollution, calling for alternatives. Here, we designed in situ lignin bonding to transform low-grade woods into high-performance and formaldehyde-free particleboards. This method involves the deconstruction of fine wood particles to soften cell walls, eliminating undesirable water-soluble components while preserving lignin, followed by a thermo-compression molding procedure to facilitate the formation of a compact and cross-linked structure within softened wood particles. Results show that particleboard displays high mechanical strength with a rupture modulus of 66.7 MPa and excellent water resistance with a thickness swelling of 2.1%. The performance of particleboards is enhanced by low wood hardness, small particle size, removal of water-soluble fractions, and preservation of lignin. The self-adhesion technique is straightforward, practical, and scalable.
Keyword ：
Formaldehyde-free particleboard Formaldehyde-free particleboard Lignin Lignin Self-adhesion Self-adhesion Structural material Structural material Wood engineering Wood engineering Woody biomass Woody biomass
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| GB/T 7714 | Gong, Zhenggang , Yang, Guangxu , Chen, Liang et al. Self-adhesion lignin bonding for the production of particleboards from low-grade wood [J]. | ENVIRONMENTAL CHEMISTRY LETTERS , 2025 , 23 (5) : 1171-1176 . |
| MLA | Gong, Zhenggang et al. "Self-adhesion lignin bonding for the production of particleboards from low-grade wood" . | ENVIRONMENTAL CHEMISTRY LETTERS 23 . 5 (2025) : 1171-1176 . |
| APA | Gong, Zhenggang , Yang, Guangxu , Chen, Liang , Shuai, Li . Self-adhesion lignin bonding for the production of particleboards from low-grade wood . | ENVIRONMENTAL CHEMISTRY LETTERS , 2025 , 23 (5) , 1171-1176 . |
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The aviation industry plays a crucial role in global trade and cultural exchange, but it faces significant challenges due to high production cost and environmental impacts. To achieve carbon neutrality, promoting the development of sustainable aviation fuel (SAF) is essential, with projections indicating that 65% of emissions reductions in the aviation industry by 2050 will come from the use of SAF. Lignin, as an abundant renewable resource, has great potential for conversion into aviation fuel components. It can be depolymerized and/or hydrodeoxygenated (HDO) to produce C6-C9 alkanes. However, to produce high-density SAF, lignin monomers need to undergo coupling, alkylation, and transalkylation reactions to extend the carbon chain to C8-C16 precursors, which can then be converted into long-chain alkanes suitable for SAF through HDO reactions. This paper reviews the research progress on synthesis of lignin-based SAF, highlights key synthetic methods, and analyzes how catalyst and reaction conditions affect the synthesis pathways, efficiency, and properties of SAF. Additionally, the obstacles and challenges hindering the development of biomass-based SAFs are discussed to provide theoretical support for future research in this field.
Keyword ：
Alkylation Alkylation HDO HDO Lignin Lignin SAF SAF
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| GB/T 7714 | Lv, Xianqing , Zhao, Chengke , Yan, Ning et al. Sustainable aviation fuel (SAF) from lignin: Pathways, catalysts, and challenges [J]. | BIORESOURCE TECHNOLOGY , 2025 , 419 . |
| MLA | Lv, Xianqing et al. "Sustainable aviation fuel (SAF) from lignin: Pathways, catalysts, and challenges" . | BIORESOURCE TECHNOLOGY 419 (2025) . |
| APA | Lv, Xianqing , Zhao, Chengke , Yan, Ning , Ma, Xinbing , Feng, Shixing , Shuai, Li . Sustainable aviation fuel (SAF) from lignin: Pathways, catalysts, and challenges . | BIORESOURCE TECHNOLOGY , 2025 , 419 . |
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Abstract ：
Valorization of lignin is essential for establishing a profitable biorefining industry, yet its efficiency is critically constrained by lignin condensation. Understanding lignin condensation mechanisms and developing effective strategies to inhibit condensation have emerged as a global research imperative. Despite several successful practices in stabilizing the α carbon position of lignin under mild temperatures, a mechanistic understanding of lignin condensation under high temperatures and the corresponding strategy for preventing such condensation remain lacking. Herein, using monophenol as a probe molecule to capture reactive lignin fragments produced under high-temperature treatments, we unveil a novel condensation pathway involving the Cγ-position, which arises from the nucleophilic reaction of the Cγ-position and aromatic rings of lignin. We further demonstrated that phenol, serving as both a radical scavenger and a competitive nucleophilic reactant (vs. lignin aromatic rings), could suppress Cγ-condensation reactions among lignin fragments and, meanwhile, enable the production of novel lignin-derived bisphenols (1,3-diaryl propanes) with a molar yield of 35.2% (mass yield of 45.9 wt %) from eucalyptus feedstock. The mechanistic finding represents a significant advance in lignin chemistry and enables the manipulation of lignin condensation pathways in a wider temperature range for the production of valuable bisphenols (1,1-diaryl propane, 1,2-diaryl propane, and 1,3-diaryl propane), which can serve as precursors for synthesizing biobased polymers and sustainable aviation fuels. © 2025 The Author(s)
Keyword ：
Biomass Biomass Condensation Condensation Condensation reactions Condensation reactions Free radicals Free radicals Lignin Lignin Molecules Molecules Phenols Phenols Propane Propane
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| GB/T 7714 | Huang, Lizhen , Zhao, Chengke , Gong, Zhenggang et al. Manipulation of lignin condensation pathways to produce different bisphenols from biomass [J]. | Innovation , 2025 , 6 (10) . |
| MLA | Huang, Lizhen et al. "Manipulation of lignin condensation pathways to produce different bisphenols from biomass" . | Innovation 6 . 10 (2025) . |
| APA | Huang, Lizhen , Zhao, Chengke , Gong, Zhenggang , Luo, Xiaolin , Xu, Ying , Shuai, Li . Manipulation of lignin condensation pathways to produce different bisphenols from biomass . | Innovation , 2025 , 6 (10) . |
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本发明公开了一种表面醛基化的微纳米纤维素制备方法，本发明涉及生物质转化利用技术领域，具体包括以下制备步骤：步骤一、将纤维素材料分散于溶剂中，得到混合液A；步骤二、室温条件下，将氧化剂加入到混合液A中，磁力搅拌反应，得到混合液B；步骤三、将混合液B离心，离心后的固体采用二氯甲烷进行洗涤；步骤四、将洗涤后的固体置于真空干燥箱中进行干燥处理，得到表面醛基修饰的纤维素材料。该表面醛基化的微纳米纤维素制备方法，通过采用二碘酰基苯甲酸(IBX)作为氧化剂，在二甲基亚砜溶剂、室温条件下进行微纳米纤维素材料的氧化反应，该反应体系可以成功实现纤维素材料表面伯羟基氧化，从而制备出表面醛基化的纤维素。
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| GB/T 7714 | 赵承科 , 姜飞 , 董志明 et al. 一种表面醛基化的微纳米纤维素制备方法 : CN202510649279.4[P]. | 2025-05-20 . |
| MLA | 赵承科 et al. "一种表面醛基化的微纳米纤维素制备方法" : CN202510649279.4. | 2025-05-20 . |
| APA | 赵承科 , 姜飞 , 董志明 , 帅李 . 一种表面醛基化的微纳米纤维素制备方法 : CN202510649279.4. | 2025-05-20 . |
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Electrocatalytic oxidation of biomass-derived hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) and electrocatalytic reduction of CO2 into CO are two highly investigated areas. Efficient electrocatalytic system design that combines CO2 valorization with biomass upgrading offers a viable solution to produce high-value chemicals and renewable energy at the same time. Here, we demonstrate an interfacial-engineered CoS/Co & horbar;N & horbar;C n & horbar;n type heterojunction featuring unique dual Co sites and strong built-in electric field (BEF) effects, which enables efficient electrochemical coupling of 5-hydroxymethylfurfural oxidation reaction (HMFOR) and CO2 reduction reaction (CO2RR). The optimized catalyst achieves exceptional performance metrics, i.e., a record-low onset potential of 1.12 V (versus RHE), with 99% selectivity and 98.2% faradaic efficiency (FE) for 2,5-furandicarboxylic acid (FDCA) in HMFOR, coupled with 98.6% CO2 & horbar;to & horbar;CO selectivity and the FE average was retained 98.4% in CO2RR, which outperform the previously reported state-of-the-art electrocatalysts. Moreover, the integrated HMFOR//CO2RR system demonstrates impressive stability over 50 h continuous operation. Through systematic experimental examination and theoretical calculations, we reveal that the BEF boosts the formation of the unique dual Co coordination environments (Co & horbar;N4 electron-deficient and Co & horbar;S electron-rich configurations) through modulation of charge transport dynamics, facilitating HMF activation through *OH intermediate stabilization while promoting multi-electron CO2 reduction via charge accumulation. This work establishes a blueprint for developing multi-functional catalytic architectures that address the thermodynamic and kinetic challenges in coupled electrochemical systems, advancing the frontier of sustainable electrosynthesis technologies.
Keyword ：
CO2RR CO2RR dual Co sites dual Co sites electrocatalysis electrocatalysis heterojunction heterojunction HMFOR HMFOR
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| GB/T 7714 | Zhang, Juntao , Yan, Di , Ding, Guixiang et al. Dual Co Sites in n―n Type Heterojunction Enable Selective Electrochemical Co-Valorization of HMF and CO2 [J]. | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2025 , 64 (37) . |
| MLA | Zhang, Juntao et al. "Dual Co Sites in n―n Type Heterojunction Enable Selective Electrochemical Co-Valorization of HMF and CO2" . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 64 . 37 (2025) . |
| APA | Zhang, Juntao , Yan, Di , Ding, Guixiang , Wang, Xusheng , Li, Chunxue , Zhong, Sheng et al. Dual Co Sites in n―n Type Heterojunction Enable Selective Electrochemical Co-Valorization of HMF and CO2 . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2025 , 64 (37) . |
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Selective oxidation of polyol-containing cellulose is significant for the development of cellulose-derived functional materials. While conventional oxidation methods readily introduce aldehyde groups at the C2/C3 positions (accompanied by ring-opening of anhydroglucose units) or carboxyl groups at the C6 positions in cellulose, selective oxidation to generate aldehyde functionalities specifically at the C6 position remains challenging. Herein, we demonstrate that 2-Iodoxybenzoic acid (IBX) acts as an efficient and selective oxidant for converting the primary alcohol at the C6 position of anhydroglucose units to aldehyde groups under mild conditions. Monosaccharide model studies confirmed C6-specific oxidation. This method was successfully applied for the surface modification of microcrystalline cellulose (MCC, predominantly I beta allomorph) and bacterial cellulose (BC, mainly I alpha allomorph), achieving aldehyde contents of 0.96 and 0.93 mmol g-1, respectively, with 0.6 and 0.5 equiv of IBX per anhydroglucose unit. Crystallinity analysis showed that oxidation with IBX leads to a significant decrease of crystallinity but has a negligible effect on the cellulose allomorph. This study presents a novel approach for the preparation of C6-aldehyde cellulose, enabling precise, selective modification and advancing functional material development.
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| GB/T 7714 | Jiang, Fei , Huang, Qing , Lv, Xianqing et al. C6-Aldehyde Functionalized Cellulose Preparation by 2-Iodoxybenzoic Acid Oxidation [J]. | BIOMACROMOLECULES , 2025 , 26 (11) : 7989-7997 . |
| MLA | Jiang, Fei et al. "C6-Aldehyde Functionalized Cellulose Preparation by 2-Iodoxybenzoic Acid Oxidation" . | BIOMACROMOLECULES 26 . 11 (2025) : 7989-7997 . |
| APA | Jiang, Fei , Huang, Qing , Lv, Xianqing , Dong, Zhiming , Wu, Zhuotong , Chen, Lu et al. C6-Aldehyde Functionalized Cellulose Preparation by 2-Iodoxybenzoic Acid Oxidation . | BIOMACROMOLECULES , 2025 , 26 (11) , 7989-7997 . |
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本发明公开了一种缩醛木质素基亚胺树脂的制备方法，具体步骤为：首先在木质素的提取过程中，引入乙二醛、戊二醛等双醛化合物为缩醛保护剂，在过量酸的作用下从木质纤维素中通过缩醛反应提取得到低缩合程度的木质素分子，而后与聚醚胺通过席夫碱反应制备得到缩醛木质素基亚胺树脂。本发明所得木质素基亚胺树脂的力学性能优异，玻璃化转变温度在70‑130°C之间，有望替代石油基塑料。本发明制备方法简单，原料来源绿色，极具应用前景。
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| GB/T 7714 | 吴擢彤 , 卓雯琳 , 藏莉琪 et al. 一种缩醛木质素基亚胺树脂的制备方法 : CN202510658010.2[P]. | 2025-05-21 . |
| MLA | 吴擢彤 et al. "一种缩醛木质素基亚胺树脂的制备方法" : CN202510658010.2. | 2025-05-21 . |
| APA | 吴擢彤 , 卓雯琳 , 藏莉琪 , 罗小林 , 帅李 . 一种缩醛木质素基亚胺树脂的制备方法 : CN202510658010.2. | 2025-05-21 . |
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Photochemical CO2 conversion to valuable C2 products is desirable but challenging due to high C-C coupling barriers. This study constructs an acceptor-donor-acceptor type N, N'-bis(4-fluorophenyl) perylene-3,4,9,10-bis(dicarboximide)-supramolecular photocatalyst for efficiently and selectively photo-converting CO2 and water vapor into C2H6, achieving a high production rate of 124.84 mu mol g-1 h-1 with 85% selectivity under continuous 50-hour illumination. The performance is mainly attributed to giant internal electric field induced by the incorporation of fluorobenzene into the perylene diimide framework, greatly enhancing the separation and transfer of photogenerated charges. Theoretical calculations further elucidate the critical role of fluorobenzene in lowering the activation energy of the reaction and promoting the formation of the key C-C coupling intermediate (*COCO). This work provides insight for the design of high-performance catalysts for CO2 photoreduction.
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| GB/T 7714 | Xiao, Yin , Ding, Guixiang , Tao, Jiayu et al. Selective conversion of CO2 to C2H6 in pure water photocatalyzed by fluorobenzene-linked perylene diimide [J]. | NATURE COMMUNICATIONS , 2025 , 16 (1) . |
| MLA | Xiao, Yin et al. "Selective conversion of CO2 to C2H6 in pure water photocatalyzed by fluorobenzene-linked perylene diimide" . | NATURE COMMUNICATIONS 16 . 1 (2025) . |
| APA | Xiao, Yin , Ding, Guixiang , Tao, Jiayu , Wang, Zhaoqiang , Chen, Zihe , Chen, Lihui et al. Selective conversion of CO2 to C2H6 in pure water photocatalyzed by fluorobenzene-linked perylene diimide . | NATURE COMMUNICATIONS , 2025 , 16 (1) . |
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