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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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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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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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本发明公开了一种木质素衍生的对乙酰氨基酚类化合物及其合成方法，属于生物质高值化转化利用和新型药物制备技术领域。所述合成方法以木质素为原料，通过常规氧化降解方法转化为对羟基苯甲酸类化合物（香草酸和丁香酸），随后通过加入3‑甲基‑1,4,2‑二恶唑‑5‑酮（MDO）和1,8‑二氮杂双环[5.4.0]十一碳‑7‑烯（DBU），实现对羟基苯甲酸类物质脱羧酰胺化，从而制备出2‑甲氧基‑4‑乙酰氨基酚和2,6‑二甲氧基‑4‑乙酰氨基酚。本发明方法通过两步即可将木质素转化为新型的对乙酰氨基酚类化合物，合成工艺简单，反应条件温和，无金属催化剂参与，反应选择性和得率较高。
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| GB/T 7714 | 赵承科 , 张曦 , 帅李 . 一种木质素衍生的对乙酰氨基酚类化合物及其合成方法 : CN202510447188.2[P]. | 2025-04-10 . |
| MLA | 赵承科 et al. "一种木质素衍生的对乙酰氨基酚类化合物及其合成方法" : CN202510447188.2. | 2025-04-10 . |
| APA | 赵承科 , 张曦 , 帅李 . 一种木质素衍生的对乙酰氨基酚类化合物及其合成方法 : CN202510447188.2. | 2025-04-10 . |
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Flexible hybrid nanogenerators (HNGs) have received significant attention for their potential in harvesting mechanical energy to power portable and miniaturized portable devices. This work presents a method to fabricate flexible, durable and biodegradable electrospun polydopamine@barium titanate/cellulose acetate (PDA@BTO/CA) nanofiber films. This design integrates polydopamine (PDA) and piezoelectric barium titanate (BTO) nanoparticles within a flexible cellulose acetate (CA) matrix to enable self-powered wearable biomonitoring. The inclusion of PDA enhances the physical adhesion between BTO and CA, resulting in a significant 40% increase in voltage output. Notably, the PDA-modified composite PDA@BTO/CA demonstrates remarkable durability over 15,000 cycles and effectively detects a range of human motions (such as fist clenching, wrist bending, elbow movement, walking, running and jumping), transducing them into stable, precise electrical signals. Intriguingly, the hybrid nanogenerator device exhibits robust performance in extreme conditions, including underwater and high or low temperatures, while maintaining its good biodegradability. This work paves the way for advanced self-powered wearable biosensor devices capable of precise and reliable human motion monitoring.
Keyword ：
Cellulose Cellulose Composite Composite Hybrid nanogenerator Hybrid nanogenerator Polydopamine Polydopamine Wearable sensors Wearable sensors
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| GB/T 7714 | Lu, Shengchang , Li, Shuai , Li, Qin et al. Flexible cellulose-based hybrid nanogenerators for self-powered wearable bio-monitoring applications [J]. | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2025 , 685 : 1087-1098 . |
| MLA | Lu, Shengchang et al. "Flexible cellulose-based hybrid nanogenerators for self-powered wearable bio-monitoring applications" . | JOURNAL OF COLLOID AND INTERFACE SCIENCE 685 (2025) : 1087-1098 . |
| APA | Lu, Shengchang , Li, Shuai , Li, Qin , Yang, Lin , Zhang, Hui , Li, Jianguo et al. Flexible cellulose-based hybrid nanogenerators for self-powered wearable bio-monitoring applications . | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2025 , 685 , 1087-1098 . |
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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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Elastomer-based electronics have the potential to maintain both electrochemical conductivity and mechanical properties simultaneously, paving the way for the development of stretchable sensors. However, creating sensors that are extremely stretchable, wearable, and highly sensitive remains a significant challenge. In this work, we present a novel fully bio-based multifunctional polymer (FPL/PTA) designed using thioctic acid (TA) and formaldehyde-protected lignin (FPL). The FPL serves as both a cross-linking agent and a free radical quenching agent. The FPL/PTA features an adaptive polymer network cross-linked by dynamic covalent disulfide bonds and enhanced by multiple non-covalent interactions. This unique structure imparts the material with stretchability, self-healing properties, hydrophobicity, swelling resistance, self-adhesion, and fully recyclable, degradable characteristics. In addition, the simple preparation route, multiple functions, and green characteristics give the elastomer and choline chloride combination as a strain sensor. The sensor exhibits exceptional sensitivity to strain, repeatability, and durability, enabling it to monitor a wide range of human movements, including joint articulation, speech, and swallowing. We believe that the overall performance and feasibility of manufacturing the developed FPL/PTA marks it as a promising multifunctional strain sensor for applications in flexible wearable electronic devices and humanoid robots.
Keyword ：
Lignin Lignin Multifunctional polymer Multifunctional polymer Thioctic acid Thioctic acid Wearable strain sensors Wearable strain sensors
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| GB/T 7714 | Zhuo, Wenlin , Luo, Xiaolin , Yan, Hanlei et al. A lignin-based multifunctional elastomer via facile fabrication for wearable strain sensors [J]. | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES , 2025 , 306 . |
| MLA | Zhuo, Wenlin et al. "A lignin-based multifunctional elastomer via facile fabrication for wearable strain sensors" . | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES 306 (2025) . |
| APA | Zhuo, Wenlin , Luo, Xiaolin , Yan, Hanlei , Shuai, Li , Wu, Zhuotong . A lignin-based multifunctional elastomer via facile fabrication for wearable strain sensors . | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES , 2025 , 306 . |
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Nature excels in synthesizing advanced protein adhesives under mild condition, utilizing enzyme catalysis to achieve controllable and adjustable cold-set adhesion. To emulate this natural prowess in synthetic protein adhesives (SPAs), which are often hindered by low reactivity, weak controllability, and poor selectivity, we developed a biomimetic-enzyme-catalysis strategy to successfully construct SPAs with cold-set adhesion function via a facile one-pot method. By employing magnesium oxide (MgO) as a catalyst, the resultant adhesive demonstrated enhanced and versatile adhesion capabilities (1.67/0.98 MPa to wood for dry/wet condition, respectively), with controllable and adjustable adhesion by tailoring crosslinked and catalytic sites. Moreover, this design was applicable to various types of crosslinkers and proteins to create more robust cold-set SPAs. The investigation of the catalysis mechanism has revealed that MgO selectively and controllably interacts with adhesive molecules, effectively lowering the energy barrier necessary for successful molecular crosslinks at room temperature. Together with its demonstrated potential in large-scale and long-term applications, our strategy provides a viable pathway for the eco-friendly and scalable production of high-quality cold-set SPAs that rival natural protein adhesives.
Keyword ：
Biomimetic catalysis Biomimetic catalysis Cold-set adhesion Cold-set adhesion Controllable catalysis Controllable catalysis Metal oxides Metal oxides Protein adhesive Protein adhesive
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| GB/T 7714 | Zhu, Zhiqiang , Chen, Nairong , Huang, Youhui et al. Biomimetic catalysis design enables controllable and adjustable cold-set protein adhesive [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 520 . |
| MLA | Zhu, Zhiqiang et al. "Biomimetic catalysis design enables controllable and adjustable cold-set protein adhesive" . | CHEMICAL ENGINEERING JOURNAL 520 (2025) . |
| APA | Zhu, Zhiqiang , Chen, Nairong , Huang, Youhui , Chen, Lihui , Shuai, Li , Li, Feng . Biomimetic catalysis design enables controllable and adjustable cold-set protein adhesive . | CHEMICAL ENGINEERING JOURNAL , 2025 , 520 . |
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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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