ACS Applied Energy Materials
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2025
·
IF 5.5
Miaoyou Li,Bailiang Xue,Xiaojie Xie,Mengqi Song,Wenliang Wang,Haiwei Wu,Wei Zhao,Weijing Chen
Lithium metal batteries (LMBs) have emerged as a pivotal next-generation energy storage technology due to their exceptional theoretical energy density. Their development faces fundamental challenges from conventional poly(vinylidene fluoride) (PVDF) binders, including high crystallinity, insufficient adhesion, and poor interfacial compatibility with electrode active materials. In this work, we developed a convenient one-pot strategy to enhance the performance of the traditional PVDF binder by using lignin-derived polyhydroxyurethane (PHU). The ultra-low-dosage (1 wt %) lignin-derived PHU-modified PVDF binder (LP1) effectively enhanced the flexible amorphous domains and interfacial adhesion, leading to significantly improved Li+ transport and cyclic stability. The electrode with LP1 binder exhibited a substantially higher Li+ diffusion coefficient of 3.47 × 10–14 cm2 s–1 than that of the PVDF binder (2.05 × 10–15 cm2 s–1). The LP1-based battery demonstrated a capacity retention of 93.8% after 400 cycles at 1C compared to the 82.5% of the PVDF-based battery. This work not only establishes a foundation for the application of lignin-derived binders but also provides important guidance for binder design toward next-generation binder systems in advanced LMBs.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Qian Wang,Mingjie Chen,Junwei Yao,Gang Zhou,Dandan Zhang,Qingshan Shi,Qianwen Mai,Xiaobao Xie
The increasing prevalence of drug-resistant bacteria and the ecological burden of synthetic antimicrobials demand sustainable biomaterials with superior antibacterial properties. Natural lignin, an amorphous polymer, presents considerable potential as a structural building block for sustainable biomaterial. Herein, inspired by antimicrobial photodynamic inactivation, kraft lignin was first reacted with formaldehyde and ethylenediamine to synthesize aminated lignin, the aminated lignin was further reacted with acetic anhydride, resulting in modified lignin. Thereafter, the modified lignin functions as a carrier, encapsulating the hydrophobic photosensitizer chlorin e6 to improve its dispersibility and aqueous solubility. Chitosan was further utilized to coat the nanoparticles, improving bacterial uptake, ultimately obtaining the desired final nanospheres (CS-ML-Ce6). Upon laser irradiation, CS-ML-Ce6 achieved >99.99 % bactericidal efficiency against methicillin-resistant Staphylococcus aureus . Additionally, it demonstrated a minimum inhibitory concentration of modified lignin of 67.71 μg/mL when exposed to light. It could result in membrane disruption and intracellular component leaking, while bacterial adsorption increased to 47.36 %. The dead/live rate of CS-ML-Ce6 against drug-resistant pathogens was almost 8-fold to modified lignin control. Concurrently, hemolysis assays with rabbit red blood cells confirmed exceptional biocompatibility, with hemolysis rates maintained below 5 % even at 6 × MIC concentrations. Considerable reactive oxygen species scavenging effectiveness at both the solution and cellular levels was also observed of CS-ML- Ce6, this dual-function approach uniquely combines light-activated bactericidal properties and dark-phase antioxidant repair. Utilizing lignin, an industrial byproduct, provides an efficient and promising antimicrobial alternative to prevent overuse of antibiotics and has significant potential for human healthcare.
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COMPOSITES PART B-ENGINEERING
·
2025
·
IF 14.2
Jinbang Han,Xiuzhong Zhu,Li Tian,Naishuo Yan,Jinjie Zang,Haitao Zhang,Lei Wang,Fengshan Zhang
Exploiting inexpensive, bio-derived lignin as a partial replacement for petroleum-based polyols offers a sustainable pathway to high-value lignin applications. However, prior studies have mainly focused on lignin's reinforcing effects in elastomers, neglecting its potential photothermal properties. Lignin-modified waterborne polyurethane elastomers (LWPUxAy) were synthesized, demonstrating UV resistance, enhanced mechanical robustness, rapid light-controlled self-healing, and photothermal weldability. LWPUxAy exhibited exceptional mechanical properties (51.9 MPa tensile strength, 768.8 % elongation) and a significantly enhanced photothermal conversion efficiency due to Ag + ligand bonding. Upon near-infrared (NIR) irradiation (1.25 W/cm 2 ), LWPUxAy rapidly reached a surface temperature exceeding 160 °C within 35 s. The synthesized LWPUxAy demonstrated rapid, light-controlled self-healing and notable welding performance under near-infrared (NIR) irradiation (0.6 W/cm 2 , 5 min). Furthermore, LWPUx effectively blocked the entire UV spectrum within the 200–400 nm range. Bio-derived lignin was incorporated into light-responsive polyurethane elastomers, resulting in enhanced tensile strength and self-healing efficiency.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Huajian Wang,Lei Lei,Linxiang Zhou,Xiaoya Zhou,Dongming Qi,Huan Wang,Kai Chen
Lignin is a promising dispersant due to its hyperbranched polymer structure, low cost, renewability and abundant availability. However, its use is limited by its broad molecular weight distribution, inhomogeneity, and low content of hydrophilic functional groups. In this work, lignin was functionalized with alkaline amino acids (EHL-AA) to enhance water solubility and molecular weight uniformity. The results showed that EHL-AA significantly improved the dispersion of pigment Red 57:1 (P.R.57:1) in aqueous solutions, reducing the required dosage by 50 % compared to commercial small-molecule dispersants. Additionally, histidine modified lignin (EHL-His) exhibited superior stability for P.R.57:1 compared to commercial lignosulfonate (REAX 85A). Molecular dynamics simulations further revealed that showed that EHL-His had the highest electrostatic potential difference and the largest absolute value of negative ESP. The adsorption of EHL-His onto the P.R.57:1 surface followed the pseudo-second-order kinetic model and the Langmuir model, with EHL-His showing a higher Langmuir constant (b) than REAX 85A, indicating the strongest interaction with the pigment. In summary, this work advances pigment dispersion technology and promotes the high-value utilization of lignin.
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Coatings
·
2024
·Vol. 14
·期 11
·1421
·
IF 2.9
Hui Xu,Fengqi Qiu,Weishuai Han,Zhenhua Xue
To investigate the relationship between the lignin removal rate change of wood and its dielectric properties, this study employedMongolian Scotch PineandPaulowniaas the test materials. The acidic sodium chlorite method was used to delignify the treated material, and the lignin removal rate was determined at a specified reaction time interval to ascertain the dielectric constant and the tangent of the dielectric loss angle. The findings revealed that: As the delignification process progresses, the lignin content declines, accompanied by a reduction in the dielectric constant at elevated frequencies. This decline reaches a plateau near 10 MHz. The results demonstrated that the dielectric constant of the samples decreased with an increase in frequency and exhibited a stabilizing effect near 10 MHz. However, the dielectric constant of delignified wood was significantly higher than that of untreated wood. Additionally, the dielectric constant exhibited a linear relationship with the increase in lignin removal rate, while the tangent of the dielectric loss angle demonstrated a tendency to increase and then decrease. An investigation into the dielectric properties of delignified wood can yield valuable data and a theoretical foundation for the development of wood-based dielectric materials.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Shuxia Wei,Mengyuan Huang,Wenbo Liao,Zichen Li,Zhili Li,Yong Sun
Cooking with active oxygen and solid alkali (CAOSA) is an efficient pretreatment method for biomass. For better grading of the lignin yellow liquor, the different lignin fractions and the recovered solid alkali were obtained using a simultaneous acid-alkali graded separation method. The results indicated that the recovery rate of solid alkali was 67.25 %, and the grading of lignin components was characterized by smaller dispersion coefficients, and more stable properties and structure. Lignin fractions with low dispersion coefficients possess more key structures, including the Phenol hydroxyl group (ArOH), Methoxy (OMe), and β-aryl ether (β-O-4), and have better thermal properties. The low molecular weight L4 has the highest ArOH content (2.1 mmol/g), which provides better antioxidant properties. The CAOSA process destroyed the S-unit and prevented lignin from condensation. Furthermore, the CAOSA process protected carbohydrates, which could effectively prevent them from dehydrating and re-polymerizing into pseudo-lignin. This allowed the pulp to remain natural, which was beneficial for subsequent transformation and utilization. Overall, the efficient separation of biomass components and lignin grading method proposed by combining the CAOSA process with the acid-alkali grading separation method has a strong application prospect and provides a theoretical basis for the high-value utilization of biomass and lignin.
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FUEL
·
2024
·
IF 6.7
Jing Zhang,Xun Kuang,Linyu Zhu,Xintong Xiao,Zhongyue Zhou,Fei Qi
Despite the crucial roles of cyclohexanones across various industrial sectors, notably in the production of nylon and plastics, their conventional production heavily relies on fossil resources. The exploration of highly efficient routes to convert renewable biomass into cyclohexanones holds promise for advancing sustainable chemical processes, especially with the growing concerns in energy and the environment. Herein, we report the direct conversion of lignin-derived phenolic compounds to cyclohexanones through hydrodeoxygenation using PdFe/HZSM-5 catalysts. The successful achieved conversion of guaiacol was up to 97.27%, with a greatest selectivity of 90.59% to cyclohexanone on PdFe1.5/HZSM-5. Characterization of the catalysts further revealed that bimetallic catalyst promoted the dispersion of PdFe on HZSM-5 and facilitated the interactions between PdFe because of electron transfer, which collectively facilitated surprising outcomes. This work offers a promising strategy for improving lignin valorization within the context of producing sustainable chemicals and industrial materials.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Yaqing Yin,Shanjia Qin,Shuai Deng,Zhili Li,Aixing Tang,Qunliang Li,Dankui Liao,Youyan Liu
Lignin-based nanoparticles hold tremendous potential for various applications. This study proposes an innovative and straightforward method for the synthesis of spherical hybrid lignin nanoparticles (hy-LNPs) with a tunable pore structure. The approach involves blending lignin with 20 wt% polyamide-epichlorohydrin, resulting in the formation of thermoresponsive lignin-based polyelectrolyte complexes. Upon heating to 80 °C, the complexes undergo self-assembly into uniform spherical nanoparticles, achieving a minimum polydispersity index (PDI) as low as 0.08. The study reveals that nanoparticle formation involves simultaneous collapse and growth. During collapse, hy-LNPs become more compact, increasing their elastic behavior and inhibiting particle coalescence, which is critical for the formation of stable, low-dispersibility nanoparticles. Contrary to the expectation that collapse would reduce pore size, the average pore size of the hy-LNPs increases from 24.9 nm to 35.8 nm, likely due to the coalescence of smaller pores into larger ones. Furthermore, this straightforward method was applied to encapsulation β-cypermethrin, achieving an encapsulation efficiency of up to 95 % and reducing the release rate in an ethanol-water solution from 90.6 % to 63.1 % over 5 h. The thermoresponsive lignin-based polyelectrolyte complexes provide a new pathway for the controlled preparation of lignin-based nanoparticles. These nanoparticles demonstrate promising potential for applications such as drug encapsulation.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Yukang Fan,Fangbao Fu,Dongjie Yang,Weifeng Liu,Xueqing Qiu
Constructing heteroatom-doped porous carbons with distinct charge storage properties is significant for high-energy–density supercapacitors, yet it remains a formidable challenge. Herein, we employed a thiocyanogen-modulated alkali activation strategy to synthesize N and S co-doped lignin hierarchical porous carbon (NSLHPC). In this process, thiocyanogen serves as a surface modulation mediator to substitute oxygen with nitrogen and sulfur species, while the combination of KOH activation and MgO template generates numerous nanopores within the carbon structure. The three-dimensional interconnected nanosheet architecture facilitates rapid ion transfer and enhances accessibility to active sites. Density functional theory (DFT) calculations demonstrate that introducing N and S heteroatoms through oxygen substitution reduces the adsorption energy barrier of Zn 2+ . Consequently, the optimized NSLHPC exhibits a remarkable specific capacitance of 438F/g at 0.5 A/g in 6 M KOH, delivering an energy density of 10.4 Wh/kg in the symmetric supercapacitor and an impressive energy density of 104.9 Wh/kg in the zinc-ion hybrid capacitor. The NSLHPC cathode also shows an excellent lifespan with capacitance retention of 99.0 % and Columbic efficiency of 100 % over 10,000 cycles. This study presents innovative strategies for engineering high-performance porous carbon electrode materials by emphasizing pore structure modulation and N, S co-doping as crucial approaches.
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Advanced Composites and Hybrid Materials
·
2025
·Vol. 8
·期 5
·1-13
·
IF 21.8
Gu Yihui,Chen Chuchu,Yuan Yufeng,Guo Xuyang,Zhang Chaofeng,Wu Wenjuan,Rahman M. Mostafizur,Jiang Bo,Jin Yongcan
Replicating the unique combination of biocompatibility and mechanical strength found in biological tissues within synthetic biomass materials remains a critical challenge in advanced materials engineering. In this study, a synergistic “lignin/solvent-induced noncovalent enhancement” strategy was adopted to precisely regulate the network topology through lignin/glycerol solvent substitution in a chitosan/gelatin dual-network matrix. Following glycerol solvent exchange, the polymer–polymer interactions are intensified, inducing the formation of a homogeneous and robust polymer network and completing the network reconstruction. The sulfonic acid and hydroxyl moieties in sulfonated lignin act as dynamic cross-linking points within the chitosan/gelatin network. These functional groups mediate interfacial electrostatic and hydrogen bonding interactions, thereby constructing multiple networks that exhibit superior energy dissipation capacity under deformation through reversible bond rupture and reformation mechanisms. This strategy not only breaks through the mechanical limits of conventional dual-network biogels (tensile strength, 4.35 ± 0.08 MPa; compressive strength, 66.11 ± 3.90 MPa) but also confers excellent biocompatibility and anti-fatigue properties to the material. Such a biomass-derived gel provides a promising route toward the development of high-performance load-bearing materials. Graphical
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Xiaolong Wang,Juping Liu,Haiping Yang,Changzhi Li,Yang Yang
The hydrodeoxygenation (HDO) of biomass derived oils offers a viable route to produce sustainable aviation fuels, yet its large-scale application remains constrained by the reliance on noble metal catalysts. Herein, we report a high-entropy NiFeCoMo catalyst composed entirely of earth-abundant elements, which achieves noble-metal-level performance in the HDO of lignin-derived compounds. The catalyst exhibits remarkable activity and selectivity across a range of model compounds and their mixtures, reaching up to 99.9% conversion and 98.1% selectivity for methylcyclohexane even under mixed-feedstock conditions. Recyclability tests confirm excellent durability over five consecutive cycles without measurable loss of activity. Density functional theory calculations reveal that the synergistic electronic interaction among multiple metal sites induce strong hydrogen spillover, promoting the formation of oxygen vacancies that facilitate complete C-O bond cleavage. This work establishes high-entropy catalysts as a robust and sustainable alternative to precious metals for efficient biomass upgrading, offering new insights into the design of multifunctional active sites for selective hydrodeoxygenation.
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Materials
·
2025
·Vol. 18
·期 18
·4401
·
IF 3.2
Jianxu Zhang,Jingwei Li,Weisheng Guan
Biomass reforming under mild conditions for synergistic hydrogen production, driven by renewable solar energy, has rapidly emerged as a promising strategy that not only enables the efficient reutilization of biomass but also facilitates the generation of high-purity hydrogen. In this work, ZnCdS (ZCS) nanoparticles and CoWO4(CW) nanocrystals were assembled via a solvothermal method to construct a ZCS/CW S-type heterojunction composite. The resultant materials’ physicochemical characteristics were methodically described. With lignin model compounds (PP-ol) and sodium lignosulfonate as substrates, the ZnCdS/CoWO4-10% catalyst demonstrated a significant generation of hydrogen activity, producing hydrogen at rates of 223.30 μmol·g−1·h−1and 140.28 μmol·g−1·h−1, respectively, according to experimental results. The formation of heterojunctions endows composite photocatalysts with higher hydrogen evolution rates compared to single-component catalysts. This is attributed to energy band bending at the interface of the heterojunction, which facilitates efficient charge separation while maintaining strong redox capabilities. High-value compounds like phenol and acetophenone were formed when the oxidation products in the post-reaction lignin model compound solution were subsequently analyzed using high-performance liquid chromatography. Additionally, a convincing mechanism for the catalytic reaction was suggested. It is expected that this study will offer a viable route for the creation of effective photocatalytic materials, high-value organic waste transformation, and sustainable hydrogen production.
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