INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2015
·
IF 2.858
Xiaohuan Liu,Enmin Zong,Jinhua Jiang,Shenyuan Fu,Jifu Wang,Binbin Xu,Wenhuan Li,Xianzhi Lin,Yuzhi Xu,Chunpeng Wang,Fuxiang Chu
In this paper, a “graft from” Ring-Opening Polymerization (ROP) technique was used to synthesize a lignin-graft-poly (ɛ-caprolactone) copolymer (BBL-g-PCL) using biobutanol lignin (BBL) as raw material recovered from lignocellulosic butanol residue. Polymerizations were carried out with various mass ratios of BBL and CL monomer ([BBL]/([BBL] + [CL]) = 1.0%, 5.0%, 10%, 20% and 40% (w/w)) to obtain BBL-g-PCL copolymers with different molecular weights, ranging from 367 to 8163 g mol −1 . The grafting efficiency was preliminary evidenced by the long-term stability of dissolution of BBL-g-PCL in toluene. FT-IR and NMR analysis provided the further evidences for successful formation of BBL-g-PCL copolymer. The thermal properties of BBL-g-PCL copolymers were characterized by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). These results indicated that BBL-g-PCL copolymer had relatively good thermal stability. The static contact angle of BBL-g-PCL coating film reached to 80°. The surface functional groups and chemical composition of BBL-g-PCL copolymer was investigated in detail by X-ray photoelectron spectroscopy (XPS). The surface morphology of BBL-g-PCL copolymer was studied by Atomic force microscopy (AFM). Additionally, BBL-g-PCL coating film exhibited high absorption in the ultraviolet (UV) range, which could allow for applications in UV-blocking coatings, as well as the extents for the utilization of lignocellulosic butanol residue.
✓ 已验证
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2021
·
IF 5.645
Nan Sun,Zhaofeng Wang,Xi Ma,Kaixin Zhang,Zeyu Wang,Zhenyu Guo,Yun Chen,Lihao Sun,Wang Lu,Yang Liu,Mingwei Di
Inspired by biological self-healing phenomena , the preparation of lignin-containing polymer elastomers with a self-healing ability has become the focus of attention. However, the mutually exclusive conflict for the mechanical and self-healing properties of polymer elastomers makes it challenging to optimize both simultaneously. Herein, a facile strategy to prepare lignin-containing polyurethane elastomers based on hydrogen and disulfide bonds with good self-healing properties (> 93%) and tensile strength (10.77 MPa) is reported. The effect of the role of corn stover lignin as a reaction r a w material and chain extender, as well as the order of introduction of disulfide bonds on the properties of polyurethane elastomers are explored. The self-healing mechanism for dynamic hydrogen and disulfide bonds in lignin-containing polyurethane elastomers is further elaborated. Due to the aromatic ring structure of lignin and its hydrogen bond interaction with the matrix, the tensile strength of the polyurethane elastomer is improved while maintaining dynamic adaptability and responsiveness. At the same time, the combination of dynamic hydrogen and disulfide bonds improves the self-healing properties of lignin-containing polyurethane elastomers. This research reports a novel high-value application of lignin, which is of great significance for making full use of biomass resources.
✓ 已验证
DOI
高影响因子
Polymers
·
2026
·Vol. 18
·期 4
·489
·
IF 5.8
Yiming Wang,Hailing Liu,Yu-Peng He,Guoqing Guan
A bisphenol-A-free lignin hydrogel platform with programmable network density is reported. Lignin was crosslinked with poly(ethylene glycol) diglycidyl ether (PEGDGE) and sorbitol polyglycidyl ether (SPE) via epoxide ring-opening to generate hydrogel networks spanning eleven PEGDGE/SPE ratios. A single compositional lever—the SPE fraction—allowed the predictable densification of the network, translating into a monotonic shift in swelling and viscoelastic/mechanical responses. Importantly, the well-performing hydrogel (LS 1 P 9 ) coupled swelling ratio with adsorption functionality, removing 72% methylene blue from water under the tested conditions. This work positions lignin as more than a passive filler: it serves as an active phenolic macromonomer for designing sustainable, multifunctional hydrogels.
✓ 已验证
DOI
PubMed
高影响因子
GREEN CHEMISTRY
·
2026
·
IF 10.6
Ying-An Mai,Xi-Tai Cai,Libo Li,Zhipeng Qiu,Weifeng Liu,Xueqing Qiu,Rongxian Ou,Jingpeng Zhou,Fengshan Zhang,Fan Bu
Conventional formaldehyde-based adhesives pose serious risks to the environment and human health. Lignin and hydroxymethylfurfural (HMF) show great potential in the production of green, recyclable bio-based waterborne polyurethane adhesives, reducing reliance on fossil resources and minimizing environmental impact. However, lignin–furan resins typically exhibit low reactivity, brittleness, poor durability, and limited reprocessing ability, which constrains practical application. In this work, low-molecular-weight alkali lignin obtained by ethanol extraction was demethylated to increase phenolic-OH content, reduce steric hindrance, and enhance reactivity toward HMF. The modified lignin and HMF fully replaced phenol and formaldehyde to construct an bio-based resin and flexible isocyanate-terminated carbon dioxide copolyester oligomer was introduced as toughening units. During curing, HMF preferentially condenses at the ortho/para positions of lignin phenolic hydroxyl groups, while –NCO/–OH reactions form urethane and phenolic carbamate linkages. These synergistic pathways raise cross-linking density and network stability, affording high lap-shear strength (>16 MPa), weathering durability, reusability and ethanol-assisted recyclability, while avoiding high-boiling organic solvents. This strategy achieves, for the first time, the synergistic integration of high-phenolic lignin with HMF, providing a general route to high-performance, recyclable,bio-based waterborne polyurethane adhesives.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Tong Luo,Chuanwei Lu,Chunpeng Wang,Tongqi Yuan,Fuxiang Chu,Jifu Wang
Eutectogels hold considerable promise soft electrodes for high-performance flexible triboelectric nanogenerator (TENG) due to their tunable mechanical properties and environmental stability. However, conventional eutectogels with single linear polymer chains often exhibit poor mechanical strength as well as undesirable migration of components (e.g., initiators), which compromise device stability and limit their environmental adaptability in high-performance energy harvesting. Here, lignin was molecularly engineered into branched lignin nanospheres (BLNS) functionalized with polymerizable acrylate groups. In a deep eutectic solvent system, BLNS simultaneously enabled rapid self-initiated UV polymerization (97.3% C C conversion) and constructed a robust, non-migrating crosslinked network, yielding triboelectric supramolecular eutectogels (SEG). Specifically, benefiting from branched backbone and nanoreinforcing effect of the BLNS, the resulting SEG achieved exceptional mechanical robustness (tensile strength of 1.76 MPa, toughness of 5.10 MJ/m 3 ) and strong adhesion (1.21 MPa). The SEG-based sensor exhibited a high ionic conductivity of 4.50 mS m −1 and a gauge factor of 3.3, while maintaining stable sensing performance over a wide temperature range (−30 to 80 °C) and under varying humidity conditions (30–90% RH), demonstrating excellent adaptability to harsh environmental conditions. As a proof-of-concept, a TENG was constructed using the SEG as the flexible electrode, with open-circuit voltage remaining stable over 6000 contact–separation cycles, underscoring the robustness and operational stability essential for reliable self-powered soft electronic systems. This work establishes a versatile strategy for designing multifunctional lignin-based materials for next-generation self-powered electronics.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2026
·
IF 6.7
Yu Zhang,Yuanxian Wu,Limeng Qu,Zupeng Chen,Junhua Zhang
Lignin, a crucial renewable biomass component, represents a high-value pathway for achieving efficient biomass utilization. However, its complex and stable structure hinders the development of effective lignin depolymerization catalysts. In this study, the water-soluble H3PMo12O40 was combined with [Bmim]+ to form hydrophobic [Bmim]3PMo, which was supported on ZrO2 at various weight ratios to prepare [Bmim]3PMo@ZrO2 catalysts. These catalysts demonstrate excellent activity in lignin oxidative depolymerization, selectively producing monomeric phenolics (methyl vanillate, vanillin, methyl syringate, syringaldehyde). The 40 wt % [Bmim]3PMo@ZrO2 catalyst achieves optimal performance with 88.5% lignin conversion and 12.4 wt % phenolic yield. Two-dimensional nuclear magnetic resonance heteronuclear single quantum coherence (2D HSQC NMR) analysis confirms that the catalyst effectively cleaves the critical β–O–4 linkages in lignin. Furthermore, [Bmim]3PMo@ZrO2 has excellent reusability with stable performance over five cycles. These findings establish [Bmim]3PMo@ZrO2 as a promising lignin valorization candidate, inspiring efficient catalyst design for producing high-value aromatic compounds.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Bioresources and Bioproducts
·
2026
·
IF 13
Zhenke Wei,Jiayu Liu,Yonggui Wang,Zefang Xiao,Yanjun Xie
Paper derived from plant fibers is considered a highly promising alternative to non-degradable plastic packaging. However, its widespread use in packaging is limited by its poor water- and oil-proof properties. To address this challenge, this study developed a polyvinyl alcohol (PVA)/lignin nanoparticles (LNPs)/stearic acid (SA) (PLS) Pickering emulsion composite coating to fabricate high-performance biodegradable paper. In the emulsion system, the PVA acted as an oil-repellent in the aqueous phase, the SA served as a water-repellent in the oil phase, and the LNPs functioned as emulsifiers that effectively stabilized the emulsion. Owing to the synergistic effect among PVA, SA, and LNPs, the coated paper exhibited good water- and oil-proof properties (with a water contact angle of 111.2°, Cobb 60 value of 17.73 g/m 2 , and Kit rating exceeding 9/12), along with high mechanical strength (including a dry tensile strength of 7.12 kN/m and a wet tensile strength of 0.97 kN/m). While significantly enhancing performance, the PLS emulsion coating retained the environmental benefits of paper, could be easily removed to facilitate fiber recycling, and the coated paper was fully degradable in soil within 120 d. Overall, the PLS emulsion coating effectively enhanced the properties of paper without compromising its eco-friendly characteristics, demonstrating significant potential for promoting the substitution of plastic with paper.
✓ 已验证
产品关联
DOI
高影响因子
FUEL
·
2026
·
IF 7.5
Tao Ruan,Lifeng Li,Xinping Ouyang,Xueqing Qiu
Depolymerizing lignin is one of the most effective approaches for its high-valued utilization. However, the high oxygen contents in lignin depolymerized products cause the low calorific value, and hence limit their application in liquid fuels. A high efficiency 0.5 wt% Pd/WO x -ZrO 2 catalyst was designed and applied in the process for the depolymerization of lignin in this work. The effect of preparation methodology of catalyst support, the molar ratio of W to Zr, and Pd loading on both the structure of catalyst and catalytic activity to lignin depolymerization were investigated. It was found that the catalyst prepared by hydrothermal method exhibited a large specific surface area, more uniform distribution of supported Pd, as well as higher acid content and oxygen vacancies, which contributed a good catalytic activity. Moreover, the lower Pd loading and higher dispersion of Pd particles were beneficial for hindering the decrease in the specific surface area of the WO x -ZrO 2 support, and hence increasing the acidic sites of the catalyst, which also promoted both the cleavage of C-O bonds in lignin subunits and the alkylation of depolymerized products. When the catalyst prepared with 1:1 of W/Zr molar ratio and 0.5 wt% of Pd loading contributed to higher yields of bio-oil and aromatic monomers, achieving 83.30% and 35.49%, respectively. Among the aromatic monomers, 87.86% were demethoxylated alkylphenols, which significantly reduced the oxygen content of the depolymerization products.
✓ 已验证
产品关联
DOI
高影响因子
BIORESOURCE TECHNOLOGY
·
2026
·
IF 9
Xiaoyu Pei,Haoyu Lei,Jiaqi Li,Haojie Zhang,Jun Xie,Meishan Fan
Developing an environmentally friendly and efficient pretreatment method to achieve full-component utilization of biomass components (cellulose, hemicellulose, and lignin) is essential for sustainable biorefining. The TsOH/EG system was applied to simultaneously fractionate the three major constituents, yielding excellent cellulose preservation along with high removal efficiencies for hemicellulose and lignin. Under optimal conditions (2.5 % TsOH (w/w), EG: H 2 O = 60:40 (v/v), 160 °C, 30 min), cellulose retention reached 90.99 %, with complete hemicellulose removal (100 %) and 60.59 % lignin removal achieved. Concurrently, the one-pot catalytic dehydration of hemicellulose yielded 31.44 % furfural. Lignin recovered from the pretreatment liquor via acid precipitation was recycled as the surfactant (LBS) in the fermentation process, enabling the ethanol yield to be maintained at 84.35 % even at a high solid loading of 25 % (w/v). Mass balance and energy analysis further indicate that processing 1 kg of wheat straw (WS) using the 2.5 % TsOH/EG pretreatment can generate 67.35 g furfural, 256.71 g ethanol, and 90.40 g lignin-based surfactant (LBS), achieving an energy recovery rate of 76.82 %.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Yu Pan,Hua Ma,Zhe Li,Yiwen Du,Yan Liu,Jixiang Yang,Guowei Li
The selective conversion of veratryl alcohol (VA), a model compound of lignin, to produce veratraldehyde was investigated in a simple light-driven system consisting of photosynthetic pigment chlorophyllin and VA. Irradiation experiments and liquid chromatography tandem mass spectrometry analysis indicated that light in the wavelength range of 310–420 nm induced the efficient conversion of veratryl alcohol to veratraldehyde (76% in 4 h). Results from differential pulse voltammetry and linear sweep voltammetry indicated that light enhanced the two reduction peaks of chlorophyllin and boosted the photocurrent from 2.7 to 3.8 μA/cm 2 at 0.8 V between excited chlorophyllin and electrodes, confirming the occurrence of photoelectrons transferring between excited chlorophyllin and oxygen in the presence of light. Quenching experiments further demonstrated that superoxide anion radicals, produced via one-electron reduction reaction between triplet chlorophyllin and oxygen, were responsible for the efficiently selective conversion of veratryl alcohol to veratraldehyde. Our results not only contribute to revealing the role of reactive oxygen species and excited photosynthetic pigment chlorophyllin in the photochemical conversion of lignin model compounds, but also provide ideas for applications of chemical processing in lignin utilization for valuable chemical production.
✓ 已验证
DOI
高影响因子
ChemistrySelect
·
2026
·Vol. 11
·期 1
·e05158
·
IF 2
Chunmin Xu,Long Cheng,Juan Meng,Jing Luo,Jie Jiang,Hengfei Qin
Heterogeneous catalysts with high activity, environmental adaptability, and stability are urgently needed for water pollutanion treatment. In this study, biochar (NLSBC) with a large specific surface area and multiple active sites was obtained by activating lignosulfonate with CaC 2 O 4 and CH 4 N 2 O, which was used to load CoMn 2 O 4 (CMO) to prepare NLSBC/CoMn 2 O 4 to activate peroxymonosulfate (PMS) to achieve efficient degradation of norfloxacin (NOR). The degradation rate of NOR by the NLSBC/CMO-PMS system under optimal conditions (NOR-30 mg/L, PMS-0.25 mM, and catalyst-20 mg) was as high as 99.42%, and the degradation rate remained at 79.09% after five cycles, which was suitable for various natural water sources. Combined with quenching experiments, EPR analysis, and electrochemical analysis, it was proven that , 1 O 2 and electron transfer were the main reaction pathways of the NLSBC/CMO-PMS system. The ecotoxicity assessment showed that the toxicity level was significantly reduced after treatment with NLSBC/CMO catalyst. In summary, NLSBC/CMO provides a new idea for developing friendly catalysts and has potential applications in treating organic wastewater. Graphical This study demonstrates that a spinel metal oxide supported on biochar catalyst (2NLSBC/CMO) successfully activates PMS to degrade NOR. The catalyst, characterized by its rich Co/Mn active sites and efficient electron transfer, achieves an 99.42% NOR degradation rate within 60 min. The 2NLSBC/CMO/PMS system produces reactive species, including SO4•-, •OH, •O2- and 1O2, thereby removing NOR.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CATALYSIS
·
2026
·
IF 6.5
Yishuang Wang,Lei Liu,Mingqiang Chen,Defang Liang,Chang Li,Jun Wang,Haosheng Xin
Lignin valorization is crucial for obtained sustainable fuels and chemicals, however its complex structure challenges efficient conversion. Herein, we designed a Ru-modified Co/attapulgite (CoRu x /ATP) catalysts for achieving the catalytic depolymerization of lignin (CDL) under ethanol coupled with H 2 medium to liquid fuel and guaiacols. CoRu 1 /ATP exhibited exceptional catalytic efficiency under optimal conditions, where the yields of liquid product and guaiacols reached 82.82 % and 584.67 mg/g, respectively. Experiments with model compounds demonstrated that the addition of Ru could effectively reduce the activation energy of the β-O-4 bond cleavage, which decreased from 78.6 kJ·mol −1 to 73.5 kJ·mol −1 . Characterization results indicated that the Ru additive yielded Co–Ru interfaces and its hydrogen spillover effect promoted the reduction of Co 3 O 4 to CoO and metallic Co (Co 0 ) to produce more oxygen vacancies (V O ). Additionally, the research on reaction mechanisms revealed V O and CoO phases in CoRu 1 /ATP enhanced the breakage of C–O bonds of lignin and the adjacent metallic Co and Ru sites and Co–Ru interfaces improved the activation of ethanol and molecular hydrogen into active hydrogen (H*) species to stabilize reactive intermediates and enhance hydrogenation reaction. The findings provide a potential method for directional lignin conversion.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）