Cell Reports Physical Science
·
2024
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IF 7.9
Mengnan Cao,Fang Liu,Xinzhu Huo,Shouxin Liu,Jian Li,Shujun Li,Tony D. James,Zhijun Chen
Covalently embedding natural phosphors into a polymer matrix is a particularly appealing approach for producing sustainable room-temperature phosphorescent (RTP) materials. However, the fabrication of such RTP materials remains challenging. Additionally, naturally degradable RTP materials have been scarcely reported although they are crucial for sustainability. Here, we report methacrylated lignosulfonate as a phosphor, which is then covalently embedded within methacrylated gelatin by polymerization. The as-obtained Lig@Gel exhibits phosphorescence of ∼110 ms. Moreover, the Lig@Gel displays excellent biodegradability in a natural soil environment. Life cycle assessment indicates that 10 out of 14 environmental impact categories of our Lig@Gel are approximately 60%–100% lower than those of traditional luminescent materials. As a demonstration of applicability, Lig-RhB@Gel with red afterglow emission is prepared via loading Lig@Gel with rhodamine B (RhB) using an energy-transfer strategy. The as-prepared Lig@Gel and Lig-RhB@Gel could be employed as functional anti-counterfeiting coatings for fibers and paper.
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高影响因子
MACROMOLECULAR CHEMISTRY AND PHYSICS
·
2021
·Vol. 222
·期 11
·2100055
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IF 2.527
Xiaofan Chen,Zhou Zhou,Hao Zhang,Yipeng Mao,Zhenyang Luo,Xiang Li,Ye Sha
A lignin-derived polyacrylate, namely, poly(guaiacyl acrylate) (PGA), is evaluated as an end block in linear ABA triblock copolymer-based sustainable thermoplastic elastomers. Triblock copolymers containing a rubbery poly(methyl acrylate) (PMA) midblock and glassy PGA end blocks are prepared via Cu(0)-mediated living radical polymerization or single electron transfer living radical polymerization. A suite of triblock copolymers with different block ratios and a constant end block molecular weight is prepared. Even a low-end block content (<5% mole ratio) can significantly increase the material's mechanical strength (3–7 folds) and long elongation at break. The enhanced mechanical properties are attributed to microphase separation morphologies evidenced by calorimetric and scattering analyses. These elastomers also exhibit enhanced thermal stability compared with that of their parent homopolymers.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
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IF 5.518
Wei Wu,Junjie Qi,Jing Fang,Gaojin Lyu,Ze Yuan,Yifan Wang,Hao Li
Lignin shows good potential as a flocculant material, but more complex reaction processes are often required to obtain products with high flocculation performance. In this work, kraft lignin, acrylamide, and 3-chloro-2-hydroxypropyltrimethylammonium chloride were used as materials to prepare lignin-based flocculants (CPKL) using a one-pot method. The flocculation performance was significantly improved by the optimization of the synthesis conditions. Congo Red, an anionic azo dye , was used as a simulated contaminant to test the flocculation performance. Influencing factors such as flocculant dose, pH, and initial dye concentration were evaluated. The jar test results showed that CPKL has the advantages of a wide flocculation window, strong pH adaptability and the ability to maintain a high decolorization rate at different dye concentrations. Charge neutralization was the main flocculation mechanism, and adsorption bridging showed significant effects only at higher dye concentrations. In addition, lignin-based flocculants (CPKL-s) were prepared by gradient acid fractionation of kraft lignin (APKL-s), and their flocculation performance were further investigated. Among them, the product (CPKL-4) obtained by modifying the grade precipitated at pH 4 (APKL-4) exhibited good flocculation performance with a low dose and high decolorization rate. This method is environmentally friendly, technically feasible and has attractive application prospects in water treatment .
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GREEN CHEMISTRY
·
2025
·
IF 9.2
Qian Jiang,Shuguang Xu,Zuzhi Li,Xingjie Guo,Rui Zhang,Zhicheng Jiang,Bi Shi
The design of heterogeneous catalysts to enhance substrate adsorption and hydrogen spillover plays a key role in the hydrogenation of biomass-derived chemicals. Herein, a composite catalyst support featuring a nano-SiO2 core and a nitrogen-doped carbon shell was developed for Pd loading (Pd/SiO2@NC). Following NC coating, the pyridine-N and pyrrole-N in the porous NC shell interacted with Pd through their lone pair electrons, enabling the anchoring and dispersion of Pd nanoparticles. The incorporation of SiO2 with NC notably increased the electronegativity at the interface, improving the vanillin (VAN) adsorption through both VAN-Pd and VAN-SiO2@NC interactions. Moreover, electron transfer between SiO2 and NC promoted hydrogen spillover, effectively lowering the energy barrier for the hydrogenation process. Consequently, >99% of VAN was completely hydrogenated to vanillyl alcohol over Pd/SiO2@NC under mild conditions (0.5 MPa H2, 20 °C, 60 min). The catalyst exhibited widespread activity for various lignin-derived aromatic aldehydes, indicating considerable potential for industrial applications. This study constructed the active catalyst surface that successfully synthesized aromatic alcohols from renewable lignin-derived compounds, effectively replacing traditional synthesis process.
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JOURNAL OF THE ENERGY INSTITUTE
·
2025
·
IF 6.2
Hui Li,Peng Liu,Fei Ge,Wenlin Xu,Minghao Zhou
The catalytic transfer hydrodeoxygenation (CTHDO) technology of lignin-derived bio-oil is a very promising bio-oil conversion technology. However, the preparation of highly active and stable catalysts remains a major challenge. Carbon-coated metal nanoparticle catalysts can effectively solve the problems of catalyst deactivation and high-temperature metal leaching. In this work, a series of MOF-derived carbon-coated Co-based catalysts were designed via a simple solvothermal method using terephthalic acid as organic ligands, which were applied for the CTHDO reaction of guaiacol using isopropanol as H-donor. Among them, Co/C-2-500 had the best catalytic performance for the conversion of lignin-derived phenol to cyclohexanol. Under the optimal conditions of 180 °C, 0.5 MPa N 2 , and 3 h, the conversion rate of guaiacol can reach 100 %, and the yield of cyclohexanol can reach 96.8 %. Mechanism research showed that the phenol generated from the demethoxylation of guaiacol was a key intermediate, which further underwent the hydrogenation of aromatic ring to form cyclohexanol. Based on the various characterizations, it can be considered that the high catalytic activity was due to the synergistic effect of the metallic Co 0 active sites and the acid sites. This research could provide some insights for the catalytic transfer hydrodeoxygenation of lignin and its derivatives.
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Advanced Science
·
2025
·
IF 14.1
Xue Liu,Zheng Zhang,Qingwen Zheng,Chengcheng Suo,Bailing Dong,Huiying Song,Jiayi Wang,Jia Liu,Runfeng Yuan,Sailike Milanbieke,Sha Luo,Chenhui Yang,Zhijun Chen,Ruiwen Wang,Wei Li,Shouxin Liu
Electroactive biofilms (EABs) are essential components of both natural and artificial bio-electrochemical systems (BESs). However, the inevitable decay of EABs during prolonged operation can diminish their performance. In this contribution, an effective and noninvasive strategy for rejuvenating aging biofilms by the elastic deformation of anode material is approved. The synthesized wood tracheid-like structures anode material showed excellent compressibility and fatigue resistance in a wet state. The findings indicate that after the elastic deformation of the anode, aged biofilm exhibited a 37.5% increase in metabolic activity, and multi-SIM images confirmed the removal of dead cells. Analysis of the extruded substance revealed a significant removal of loosely bound extracellular polymeric substance which doesn't contribute directly to electron transfer. Community analysis demonstrated the rejuvenation process suppressed the ecological competition from non-exoelectrogens. Overall, there is a notable 25.97% increase in power density following the elastic deformation of the anode. Additionally, ion diffusion, specific capacitance, and catalytic response current all improved. To the knowledge, this is the first report employing an anode deformation strategy to restore decayed mix-cultured electroactive biofilm, which is vital for the practical long-term application of BESs. This work also offers new insights into the mechanical influence of anode materials on microorganisms.
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PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Zhuoyu Wang,Jiajia Shan,Kunpeng Yu,Lang Huang,Qiong Wu
In response to the critical challenges of high toxicity, complex synthesis, and poor environmental stability in conventional room-temperature phosphorescent materials, this study presents a sustainable biomass-derived strategy through the development of lignin-based carbon dot/inorganic salt composites (CDSL X -T). By employing a one-step molten salt approach, we construct a hierarchical architecture featuring lignin-derived sp 2 -hybridized carbon cores and a rigid crystalline shell comprising multi-component inorganic salts (MgO/Mg 3 (PO 4 ) 2 /KCl/KNO 3 ). The inherent conjugated moieties of lignin facilitate efficient intersystem crossing, while nitrogen doping optimizes (n, π*) electronic configurations to enhance spin-orbit coupling effects. In situ characterization elucidates the synergistic mechanism of high-temperature-induced carbon core aromatization and salt matrix crystallization. A dual confinement strategy-combining covalent bonding (C-K/C-Cl/C-Mg) and spatial restriction-effectively suppresses carbon dot vibrations and non-radiative triplet exciton transitions, enabling stable phosphorescence emission in aqueous environments. Leveraging time-resolved luminescence characteristics with tunable lifetimes, the material demonstrates unique potential in fingerprint visualization and multilevel information encryption. This work establishes an eco-friendly synthetic paradigm for high-performance bio-based optical materials, bridging sustainable chemistry with advanced photonic applications.
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PubMed
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ChemSusChem
·
2025
·
IF 6.6
Qian Jiang,Zuzhi Li,Javier Remón,Hui Xin,Zhicheng Jiang,Bi Shi
Finding new catalytic applications for tannin, a biomass resource, exploiting its structural features and renewable nature, helps contribute toward carbon neutrality in catalysis. In this study, novel Pd-supported, carbon-neutral catalysts have been synthesized using tannic acid. First, tannic acid was cross-linked and coated on the surface of nano-SiO2. This material was then subjected to controllable carbonization, with the temperature being optimized, to obtain the catalyst support SiO2@TA-T (T: carbonization temperature). Experimental results demonstrated that carbonizing at 400 °C remained part of the phenolic hydroxyls of tannin with satisfactory reducing ability. Meanwhile, the condensation and the deoxygenation of tannin increased the thermal stability of this support and introduced porous structures and abundant defect sites. This material was then used to adsorb and in situ reduce Pd2+ to develop Pd-based catalysts. To this end, this synthesized Pd/SiO2@TA-400 catalyst was then used to hydrogenate vanillin, with a conversion of 99% to vanillyl alcohol at a pressure of 0.5 MPa initial H2 and a temperature of 20°C for 60 min. Such remarkable results were corroborated in the hydrogenation of several lignin-derived aromatic aldehydes, with our catalyst achieving high conversion and outstanding recyclability (5 recycles).
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PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2019
·
IF 6.044
Siqi Huang,Su Shuyi,Haibo Gan,Wu Linjun,Chaohui Lin,Xu Danyuan,Haifeng Zhou,Xuliang Lin,Yanlin Qin
In this study, hydroxyethyl cellulose (HEC) and polyvinyl alcohol (PVA) as the framework, borax as the cross-linker, and biomass lignin from pulping black liquors and biorefinery as the plasticizer were used to synthesize the lignin-based HEC-PVA (LCP) self-healing conductive hydrogel with highly stretchable and thermosensitive properties by the one-step fabrication method. Compared with the PVA hydrogel, the maximum storage modulus and the elongation rate was increased by 7 times and 20 times, respectively. Uniformly distributed lignin could increase the mobility and distance of polymer molecular chains, therefore improve the viscoelasticity and stretchability of the LCP self-healing hydrogel. The LCP hydrogel could recover to the original state in 12 s after 10000% shear strain for 4 cycles. The LCP hydrogel also presented good thermosensitivity and electrical conductivity, and were very promising for applications in the fields of 3D printing and wearable electronic devices, that broadened the efficient utilization of biorefinery lignin.
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PubMed
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2025
·
IF 3.9
Chengyin Lin,Yongyuan Deng,Yuankai Lin,Jun Li,Junling Tu,Riyang Shu
Hydrodeoxygenation (HDO) represents a highly efficient refining pathway to convert lignin-derived phenolic compounds for the production of hydrocarbon fuels, and the selection of a suitable catalyst is pivotal for a high reaction efficiency. In this study, we introduce a novel highly dispersed Pt/Al2O3–TiO2 composite catalyst that is prepared via a photochemical reduction method and employ it for the HDO of lignin-derived phenolic compounds. The catalyst demonstrates a good HDO performance, achieving complete conversion of guaiacol at 260 °C with cyclohexane selectivity of 99.9%. Catalyst characterization results reveal that the Pt/Al2O3–TiO2 catalyst exhibits a high Pt metal dispersion. Besides, the composite support synergistically combines the properties of Al2O3 and TiO2 components, resulting in a high specific surface area, moderate acidity, and abundant oxygen vacancy. These factors facilitate the provision of numerous active metal sites and acid sites those are essential for the HDO reaction. Moreover, the Pt/Al2O3–TiO2 catalyst also shows a high activity on the HDO of various other phenolic compounds. When applied to the upgrading of lignin oil, the catalyst significantly increases the hydrocarbon content from 18.9% to 92.2%, concurrently reducing the oxygen content and substantially increasing the hydrogen content of the lignin oil. The calorific value is significantly enhanced, underscoring the potential of the Pt/Al2O3–TiO2 composite catalyst to upgrade lignin-derived phenolic compounds into high-quality hydrocarbon liquid fuels.
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JOURNAL OF POLYMER SCIENCE
·
2025
·
IF 3.6
Shaoxia Zhao,Zhengjun Su,Yuli Liu,Shaozhi Wang,Yihu Zhang,Jinbo Li,Weihua Meng,Jixing Xie,Jianzhong Xu
A phosphorus–nitrogen hybrid flame retardant (L–CS–P 2 O 5 ) was developed using a two-stage synthesis method, based on lignin, chitosan, and phosphorus pentoxide as the main components. It was then incorporated into thermoplastic polyurethane (TPU) to enhance its flame-retardant properties. The performance under different additions was investigated. Data indicated that adding 15 phr of L–CS–P 2 O 5 to TPU composite materials was the optimal ratio for achieving flame retardancy. At this ratio, the TPU/15 phr L–CS–P 2 O 5 mixture exhibited excellent flame retardancy, with a limiting oxygen index of 24.6% and V-2 rating in the UL-94 test. Compared with pure TPU, the addition of 15 phr of L–CS–P 2 O 5 significantly reduced the peak heat release rate (PHRR) and peak smoke production rate (PSPR) by 63.26% and 64.62%, respectively. The impressive flame-retardant performance stemmed from a powerful synergy between condensed and gas-phase mechanisms, combining processes like dehydration, char formation, dilution of flammable gases, and free radical quenching effects. In addition, the incorporation of L–CS–P 2 O 5 induced a plasticizing effect in TPU, resulting in a 45.32% enhancement in elongation at break. This significant mechanical improvement substantially broadened the potential application scope of TPU composites in more fields. Graphical Nitrogen/Phosphorus Hybrid Modified Lignin: Enhanced Flame retardancy of Thermoplastic Polyurethane.
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高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Enfu Wang,Yingting Zhang,Yipeng Liang,Yu Miao,Shangxin Ke,Weimiao Lu,Jingda Huang,Wenbiao Zhang
Superhydrophobic coating has the characteristics of waterproof, anti-pollution and self-cleaning, showing a very wide application prospect in many fields. It could be obtained by the combination of suitable roughness and low surface free energy. Renewable and low-cost lignin has certain inherent advantages in constructing super-hydrophobic coatings as rough structure, but the poor abrasion resistance limits its further development. To improve the abrasion resistance, acetonitrile extracted lignin (AEL) was employed as the main material, aminozed polystyrene (PS) microspheres with good mechanical strength and dispersibility as the reinforcer to construct AEL/PS composite particles through solvent exchange and self-assembly. Subsequently, the AEL/PS composite particles were fixed to wood by both hexadecyltrimethoxysilane (HDTMS) and methyltrimethoxysilane (MTMS) as the composite modifiers, combining with polydimethylsiloxane (PDMS) as the binder to prepare superhydrophobic coating with water contact angle of 160.8° and sliding angle of 5°. The resulting coating always exhibits superhydrophobicity even after the abrasion distance of 660 cm (33 cyclic abrasion), with the improvement of 73 % compared with before the introduced PS microspheres, exhibiting excellent abrasion resistance. Also, it exhibits excellent adhesion, and it could maintain superhydrophobicity after 1000 cyclic tape-stripping tests. In addition, the system shows outstanding stability, and it can be irradiated under high intensity ultraviolet (UV) irradiation (800 W, wavelength of 365 nm) for 8 h without losing superhydrophobicity and it maintained superhydrophobicity after immerging in various solutions (PH=4, PH=14, 3.5 wt% NaCl, ethyl alcohol, tetrahydrofuran) for 2 h. Moreover, the preparation process is simple and fluorine-free, providing a foreseeable prosperity for biomass based superhydrophobic coating with excellent abrasion resistance.
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高影响因子
危险品化学品经营许可证（带存储）