INDUSTRIAL CROPS AND PRODUCTS
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2026
·
IF 6.4
Feng Gu,Guoqing Xiao,Caoxing Huang,Jian Li,Wangxia Wang,Yongcan Jin
A three-stage p -toluenesulfonic acid ( p -TsOH) fractionation protocol integrated with flow-through (F-T) quenching was developed for the efficient valorization of wheat straw ( Triticum aestivum L.), enabling simultaneous recovery of β -O-4-rich lignin, xylose, and lignin-containing cellulose nanocrystals (LCNC). In the first stage, response surface methodology (RSM)-optimized dilute p -TsOH treatment (5.6 wt%, 73.5 °C, 121.7 min) yielded 64.9% of the theoretical xylose as a solid powder. The second stage employed concentrated p -TsOH treatment (70 wt%, 80 °C, 3 mL/min) with F-T quenching for 10 min, achieving 77.6% delignification. Notably, 56.4% of the original lignin was recovered with 46.4% β -O-4 linkage retention and low degree of condensation. The third stage utilized recycled p -TsOH to hydrolyze the cellulose-rich residue (70 wt%, 80 °C, 60 min), thereby affording 31.7% LCNC with UV-blocking properties. This integrated process combines single-solvent recycling with reduced residence time and enables efficient fractionation and valorization of all major lignocellulosic components, offering a scalable biorefinery route with significant industrial potential.
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高影响因子
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY
·
2026
·
IF 4
Wenyao Feng,Feng Li,Guiqing Lei,Wangqian Chen,Wenbin Xu,Boshen Meng,Changzhou Chen,Hongrui Jiang,Douyong Min
As a hydrophobic coating agent formulated with methyltrimethoxysilane (MTMS) and nano-silica (SiO 2 ) was coated on the lignin-reinforced thermoplastic starch (TPS), a sustainable packaging material with excellent antioxidant, ultraviolet-resistant, and high-barrier properties was developed. The TPS/lignin composite substrate was prepared by extrusion, and MTMS/SiO 2 was coated on the surface of TPS/lignin through a spraying process. The composite samples were subjected to a series of characterizations and tests, including SEM, FT-IR, water contact angle measurement, antioxidant property analysis, and UV shielding performance evaluation, and so forth. The results revealed that the introduction of lignin effectively improved the mechanical properties and ultraviolet shielding characteristics of the composite film, and the coating of MTMS/SiO 2 endowed the composite super hydrophobicity, for example, the water contact angle reaches over 157.26°. The water vapor transmission rate of the composite is reduced to 626.17 g/(m 2 24h), the ultraviolet shielding rate exceeds 99%, and the DPPH radical scavenging rate is reached 83.15%. In addition, the composite exhibits outstanding biodegradability. Overall, this study provides new ideas for the development of high-performance, multifunctional, and environmentally friendly food packaging materials. Highlights Lignin-reinforced thermoplastic starch (TPS) film is fabricated. TPS film is then coated with Methyltrimethoxysilane (MTMS)/SiO 2 . Lignin improves UV-shielding, antioxidant, strength, and thermal stability. MTMS/SiO 2 coating endows superhydrophobicity and low moisture permeability.
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BIORESOURCE TECHNOLOGY
·
2026
·
IF 8.2
Leixin Huang,Enqing Zhu,Ziliang Dai,Jiao Meng,Hangyu Shen,Lili Zhang,Jinyuan Cheng,Zhiguo Wang
Recycled lignin-rich DES yielded conductive gels via one-pot synthesis. • Lignin-metal synergy facilitated polymerization for gel formation. • The gel exhibited high strength (1.2 MPa) and anti-freezing ability. • Flexible sensors showed rapid response and stable signal detection. Deep eutectic solvents (DESs) are widely applied in lignocellulosic biomass pretreatment for their green, reusable, and lignin-selective merits. However, lignin accumulation during DES cycling significantly increases solvent viscosity and reduces pretreatment efficiency, severely limiting its sustainable application. To address this bottleneck, we innovatively combined recycled lactic acid/zinc chloride (LA/ZnCl 2 ) DES with acrylic acid (AA), leveraging the synergistic effect of lignin and metal ions to drive free radical polymerization. This strategy enables a simple and efficient preparation for lignin eutectic gels with excellent mechanical properties and low-temperature resistance. The optimized gels (with 3 wt% lignin) exhibited high tensile stress (1.2 MPa), elongation at break (580%), multi-surface adhesion (32 kPa), and maintained a stable electrical conductivity of 1.1 mS cm −1 even at −18 °C. At room temperature, the assembled flexible sensors possessed a fast response speed (160 ms), linear deformation response, and robust electrical stability (<5% signal decay over 700 cycles of 100% deformation). This study pioneered the coupling of DES pretreatment and eutectic gel preparation, facilitating full utilization of lignocellulose and DES components to advance DES-based lignocellulose fractionation, valorization, and the entire biorefinery industry. Download: Download high-res image (130KB) Download: Download full-size image
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JOURNAL OF CATALYSIS
·
2026
·
IF 6
Lin Luo,Shaoyu Yuan,Weidong Li,Renjie Huang,Zheng Li,Yunchao Feng,Zihao Qin,Yu Qiu,Chao Wang,Aiyong He,Xianhai Zeng
Reducing interface engineering to the atomic scale can significantly improve catalytic performance, but it is extremely challenging. Herein, we report a Co–Ce composite metal oxide-supported single-atom Pt catalyst with dual interfacial sites for the hydrodeoxygenation (HDO) of guaiacol to cyclohexanol. The 0.1wt.%Pt/Co 2 Ce 1 O x exhibited the best performance and good reusability, achieving 100% guaiacol conversion and 96.1% selectivity toward cyclohexanol. We successfully correlated ultralow active metal content with high catalytic activity, and achieved the maximum utilization efficiency of precious metal atoms. The high HDO activity of the catalyst is mainly attributed to the unique interfacial effect between the single-atom Pt and CoO, which significantly enhances the adsorption and activation of H 2 molecules. In addition, the 0.1wt.%Pt/Co 2 Ce 1 O x exhibits excellent substrate universality in HDO of various lignin-derived monomers and can also convert lignin to cyclic alcohols in a one-pot process. This work demonstrates the superiority of low-loading single-atom catalysts based on composite metal oxides in HDO reactions and suggests a renewable strategy for replacing of fossil-based cyclohexanol via lignin upgrading.
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CARBON
·
2026
·
IF 12.7
Jia-yuan Tian,Feng Lin,Jing-jing Wu,Pei Ma,Xiao-lin Xue,Yu-long Ma,Yong-gang Sun
Lignin is the most abundant renewable organic aromatic compound carbon source in nature, and it is of great significance to convert it into high-value fine chemicals. However, achieving this goal requires regulating the selectivity of the lignin hydrodeoxygenation (HDO) reaction is crucial to breaking the competitive relationship between C–O bond cleavage and aromatic ring saturation. This study proposes oxygen-philic-hydrogen activation dual-functional site synergy strategy, using NiCoAl-LDH as the precursor, and constructing a NiCoMoFeAlO x multi-metal oxide catalyst by introducing Mo and Fe. Experiments and DFT calculations show that the catalyst achieves precise coupling of depolymerization and deoxygenation through a tandem synergy mechanism, the NiCo sites efficiently activate H 2 to supply active hydrogen, the oxygen-philic Mo sites and Fe selectively adsorb and cleave C–O bonds, and the intermetallic synergy effectively inhibits excessive hydrogenation of aromatic rings, directing the reaction path to phenolic products with retained aromatic rings. In the real lignin HDO reaction, the catalyst achieves a liquid yield as high as 78% and 64.9% selectivity for C 6+ cyclohexanol. This research provides a new paradigm for the rational design of multi-functional catalysts and the realization of directed conversion of lignin. Download: Download high-res image (244KB) Download: Download full-size image
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Man Zhang,Haoru Tang,Yuan He,Yingli Su,Meng Dong,Binshen Wang,Beini Zeng,Jinfeng Wang
Deep eutectic solvents (DESs) have shown remarkable promise in biomass separation owing to their exceptional lignin solubility. In this work, we present a streamlined method for producing all-biomass-based materials that eliminates the need for energy-intensive lignin regeneration and DES recovery processes. By precisely modulating cellulose-lignin interactions through DES, we demonstrate tunable control over material properties. Results show that increasing lactic acid (LA) concentration in DES suppresses the degradation of lignin's carbon-carbon bonds while promoting partial cleavage of syringyl (S) units. This results in lignin enriched with phenolic hydroxyl groups, which strengthens hydrogen bonding with cellulose and enhances lignin-cellulose adhesion. These synergistic interactions produce an all-biomass pulp material with exceptional mechanical performance: a tensile strength of ∼32 MPa and a Young's modulus of ∼5445 MPa, significantly surpassing those of pure cellulose pulp (9 MPa and 1455 MPa, respectively). Furthermore, the homogeneity and UV shielding performance of these membranes improves with smaller lignin molecular weights, a higher number of phenolic hydroxyl groups in the lignin structure, or coarser cellulose fibers. This work not only advances the high-value utilization of lignocellulosic biomass but also simplifies production workflows, providing an innovative strategy for designing advanced, fully sustainable biomass-based materials.
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高影响因子
CATALYSIS LETTERS
·
2025
·Vol. 155
·期 7
·1-14
·
IF 2.4
Ren Xiaohong,Bao Zien,Wang Yong,Yu Xiaoqiang,Rong Zeming
To address the low hydrogenolysis efficiency of 4-O-5 bonds in lignin catalytic conversion, Ni-Pt/HZSM-5 bimetallic catalyst with a Ni/Pt molar ratio of 47:1 was developed using diphenyl ether (DPE) as a model compound. The results revealed that electron transfer from Ni to Pt induced a positive charge on the Ni surface, significantly enhancing its adsorption and activation capacity toward electron-rich 4-O-5 bonds. At 100 °C and 5 bar H 2 , the conversion of DPE reached 90.3% with 93.1% selectivity (phenol and benzene) and Ni-Pt/HZSM-5 retained stable over five cycles of use. When Ni-Pt/HZSM-5 was applied to pine sulfate lignin depolymerization at 220 °C and 5 bar H 2 , with yields of 12.9 wt% for phenol and 4-propylphenol and 16.3 wt% for methoxy phenolic compounds. Overall, this study would promote the application and development of high-efficiency bimetallic catalysts for the production of valuable chemicals from biomass. Graphical
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POLYMER
·
2017
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IF 3.684
Yanli Ma,Junxiu Dai,Lili Wu,Guizhen Fang,Zhanhu Guo
A polyelectrolyte membrane with anti-ultraviolet, anti-fouling, and antibacterial abilities was prepared using trimethyl quaternary ammonium salt grafting lignin (QAL) and polystyrene (PS) at different ratios. Contact angle measurements indicated that the addition of QAL into the PS blending membrane altered the hydrophilicity by trimethyl quaternary ammonium groups and phenolic hydroxyl groups of QAL. Furthermore, the phenylpropane structural unit in the lignin formed double bonds by conjugating with carbonyl groups and formed p-π by conjugating with phenolic hydroxyl of side chains. For this reason, the produced composite membranes displayed high potential and commercial importance for absorbing ultraviolet light . The ultraviolet transmission values of all the PS/QAL blending membranes were close to zero ranging from 200 to 400 nm. The QAL 5 -PS membrane had less variation in the gas transmission rate (−6.388 cm 3 /m 2 /day/atm) than that of PS membrane (−32.9 cm 3 /m 2 /day/atm) after 5 circles of bovine serum albumin (BSA) fouling. The inhibition zone of the QAL 5 -PS membrane was 10.4 ± 0.06 mm, and almost zero for the neat PS membrane, indicating a much better antibacterial performance of the QAL-PS composite membranes than that of pure PS membranes.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 3
·122374
·
IF 7.5
Feng Chen,Xiang Xia,Wei Chen,Wei Liu,Xinxin Liao,Lei Xiong,Yanqiao Jin
Refining lignin and its derivatives into biofuels and fine chemicals via catalytic transfer hydrogenation (CTH) has gained significant attention for its potential in utilizing renewable resources and reducing fossil fuel dependence. Herein, a series of bimetallic Cu-Co catalysts with varying metal ratios are synthesized via a facile hydrothermal method and successfully applied in the efficient CTH of the α-O−4 model compound benzyl phenyl ether (BPE) and corncob lignin. Cu 0.5 Co 1 @CN has the best performance among catalysts with different CuCo ratios due to the formation of the CuCo 2 O 4 phase which provides more acid sites and hydrogen adsorption/desorption sites. Under the reaction conditions of 190 °C in isopropanol, the Cu 0.5 Co 1 @CN catalyst achieves the complete conversion of BPE to cyclohexanol and toluene, and demonstrates excellent CTH performance towards other α-O−4 and β-O−4 model compounds. This catalyst simultaneously enables the demethoxylation and hydrogenation of phenolic compounds like guaiacol. Furthermore, Cu 0.5 Co 1 @CN efficiently converts corncob lignin, producing a high proportion of phenolic compounds in the resulting liquid (88.26%), while preventing the aromatic hydrocarbons from being hydrogenated. Overall, this work provides a novel and effective strategy for transforming lignin into high-value products.
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高影响因子
BIORESOURCE TECHNOLOGY
·
2026
·
IF 8.2
Chen-Xi Li,Qian Ren,Feng Peng,Ming-Fei Li
A synergistic catalyst was prepared on lignin-derived carbon via two-step strategy. • The catalyst achieved an exceptional lactic acid yield of 58.91% from xylan. • The catalyst demonstrated remarkable versatility across diverse biomass-derived sugars. • High recyclability was realized attributable to Co–N 4 /Zn AC configuration. Hydrothermal catalysis offers a sustainable route for lignocellulosic valorization, while conventional catalysts often necessitate demanding conditions and efficient hemicellulose conversion remains challenging. Herein, a nitrogen-doped lignin-derived carbon-based synergistic catalyst, embedding cobalt single-atom and zinc atomic clusters (Co SAC -Zn AC @LCN), was constructed via a pre-coordination and pyrolysis two-step coupled strategy for one-pot conversion of hemicellulose to lactic acid (LaA). Characterizations revealed well-dispersed and spatially proximate Co single-atom and Zn clusters anchored on stacked two-dimensional carbon–nitrogen nanosheets. The strong synergistic interaction between Co single-atom and Zn clusters enhanced Lewis acidity and further facilitated C C bond cleavage and intermediate rearrangement. Co SAC -Zn AC @LCN exhibited a mesoporous structure with a high surface area (140.61 m 2 /g) and elevated carbon defects, promoting reactant diffusion and adsorption. Under optimized conditions (240 °C, 1 h), the catalyst achieved 58.9% LaA yield and 113.7 h −1 TOF from xylan and maintained over 42% yield across various biomass-derived sugars, demonstrating its remarkable catalytic performance and universality. Owing to the stable Co–N 4 /Zn AC configuration, it retained over 56% LaA yield after six cycles. This work provides a general strategy to design atomic-scale synergistic catalysts from biomass carbon for efficient lignocellulosic conversion to high-value chemicals. A nitrogen-doped carbon catalyst embedded with Co single-atom and Zn atomic clusters was constructed leveraging a lignin-derived framework. The strong synergistic interaction between Co single-atom and Zn clusters enhanced Lewis acidity and facilitated the efficiently conversion of hemicellulose to lactic acid. Owing to the stable Co–N 4 /Zn AC configuration, it retains excellent cycling stability. Download: Download high-res image (145KB) Download: Download full-size image
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高影响因子
JOURNAL OF POWER SOURCES
·
2026
·
IF 8.4
Jin-yu Han,Xiao-ru Meng,Xin-tian Wang,Wen-lei Zhu,Meng-ran Li,Wei Chen,Shuai Gao,Zhen Fang
Enzymatic lignin enables confined FeNi alloys and M–N x sites in porous carbon. • A 1.5:1 Fe/Ni ratio drives dual-level electronic regulation for ORR. • The FeNi@ELNC-1.5 composite exhibits an outstanding ORR half-wave potential of 0.903 V, rivaling commercial Pt/C. • DFT links FeNi–carbon coupling to optimized oxygen-intermediate adsorption. • Zn–air batteries reach 1.520 V OCV, 772.93 mAh g −1 specific capacity and 154 h cycling. Slow oxygen electroreduction at the air electrode and the associated dependence on Pt catalysts continue to restrict the deployment of zinc-air batteries (ZABs). This study examines whether enzymatic hydrolysis lignin can serve as a renewable carbon precursor for constructing an efficient FeNi-based ORR catalyst. FeNi@ELNC-X catalysts were synthesized by solvothermal treatment followed by pyrolysis and evaluated through physicochemical characterization, rotating-electrode electrochemistry, ZAB tests, and density functional theory (DFT) calculations. At an optimized Fe/Ni precursor molar ratio of 1.5:1, the lignin-derived N-doped porous carbon framework confines FeNi alloy nanoparticles and minor Fe 3 C domains, limiting particle aggregation and creating coupled metal-carbon interfaces. In 0.1 M KOH, FeNi@ELNC-1.5 reached E 1/2 = 0.903 V vs. RHE, approaching the response of 20% Pt/C; it also favored a four-electron route and preserved 98.9% of the current over 36,000 s. The calculations indicate that interfacial electronic interactions adjust the binding of *OOH, *O, and *OH. When implemented as the air electrode, the catalyst enabled a ZAB delivering 1.520 V OCV together with a capacity of 772.93 mAh g −1 at a discharge current of 5 mA cm −2 . These findings provide a renewable route to non-precious-metal air-cathode catalysts. Download: Download high-res image (284KB) Download: Download full-size image
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Peng Du,Yongjian Xu,Jian Wang,Lulu Ning,Xudong Wei,Miaomiao Zhang
Commercial melt-blown filter layers, which lack antibacterial properties and are non-recyclable, are difficult to become green and sustainable materials. To overcome these challenges, this study developed a multifunctional cellulose-based filter layer using cellulose fibers (CFs) as raw material through a straightforward layer-by-layer assembly method. CFs were modified by esterification to create grafted-CFs (GCFs), then lignin was introduced via Mannich reaction to produce lignin@GCFs. Characterization methods, including FT-IR, XRD, UV–vis, and 13 C NMR, confirmed the successful modification without disturbing the cellulose-I β structure. The lignin@GCFs were deposited on the porous-structure high-breathable base paper to construct a lignin@GCFs-2 composite filter layer, demonstrating that its air-permeability, tensile index, and zero-span tensile strength were 72.28 μm/(Pa·s), 19.22 N·m·g −1 , and 20.25 N/cm (ROL: 24.40 N/cm/s), respectively, which completely met the physical performance standard of the middle filter layer of commercially available medical protective filters. It exhibited excellent antibacterial properties against E.coli and S.aureus with the inhibition zone of 0.60 mm and 3.00 mm, respectively. Notably, it achieved high filtration efficiency against PM 2.5 , remaining above 99.00 % after being assembled into the medical protective filters and worn for 48.0 h. Furthermore, the composite filter layer was completely degraded after 120 days. This innovative, cellulose-based filter layer presents a promising alternative to the middle filter layer of commercially available medical protective filters, advancing the development of cellulose-based filtration materials.
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