ACS Sustainable Chemistry & Engineering
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2025
·
IF 7.3
Jichang Li,Zihua Li,Chenchen Wang,Chuanshuang Hu,Shouxiang Jiang,Chaoqun Zhang,Yonghui Zhou,Xiuyi Lin,Jiangtao Xu
The inefficient high-value utilization of lignin and the widespread contamination by microplastics present dual urgent challenges in the resource and environmental sectors. Furthermore, existing microplastic adsorption materials generally lack closed-loop pathways for resource recovery after the adsorption process. This study proposes a closed-loop utilization system that employs lignin-based nanofibrous membranes for microplastic adsorption, followed by thermally induced functional reconfiguration to fabricate triboelectric sensors. Composite nanofibrous membranes with varying lignin-polyacrylonitrile (PAN) ratios were prepared via electrospinning, and the regulatory mechanisms of lignin structure on microplastic adsorption performance were systematically investigated. Leveraging the thermoplasticity of lignin and its thermal compatibility with polyethylene terephthalate (PET), the adsorbed membranes were subjected to hot pressing to induce functional restructuring, thereby conferring triboelectric properties on the membranes. Organic lignin (OL)/PAN composite membranes to achieve a high adsorption capacity of 363.94 mg/g. After thermal pressing at 150 °C, the OL/PAN membrane formed a unique honeycomb structure, which significantly reduced energy loss and enhanced triboelectric sensing signals. The resulting triboelectric sensor not only maintained stability over 5000 cycles but also demonstrated high-sensitivity detection capabilities for multiscale human movements. This study provides a novel strategy for the synergistic valorization of lignin and management of microplastic pollution.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2025
·
IF 9
Junxian Xie,Jiahui Xie,Junjun Chen,Shiyun Zhu,Jun Xu,Haitao Yang
Light-colored lignin nanoparticles (LNPs) have shown great potential in their conversion and high value-added applications. However, the direct extraction of light-colored LNPs from lignocellulosic materials remains a significant challenge in the field. In this study, we developed a very effective strategy for rapid extraction (1 h) of light-colored LNPs from radiata pine using a new ternary deep eutectic solvent (TDES) composed of benzyltrimethyl-ammonium chloride (BTMAC), formic acid (FA) and maleic acid (MA). The results indicated the obtained average particle size of LNPs ranged from 127 nm to 171 nm. The extraction process was optimized to achieve high yields (84.7 %), purity (94.1 %) and low polydispersity index (PDI = 1.96) while maintaining the light-colored LNPs (brightness ISO 24.15 %), which was 9.7, 10.5 and 2.5 folds higher than Kraft lignin, alkali lignin and lignosulfonate, respectively. Further evaluation revealed that the IC50 of the three LNPs samples were less than 60 μg·mL −1 , exhibiting significant antioxidant activity. In addition, the introduction of MA could protect the β-O-4 linkage from excessive cleavage and recondensation as well as avoid the deepening of LNPs color. This work not only presents an effective method for extracting light-colored LNPs but also highlights their advantageous properties, paving the way for sustainable product development utilizing lignocellulosic biomass.
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European Journal of Wood and Wood Products
·
2025
·Vol. 84
·期 1
·7
·
IF 2.5
Yu Fanjun,Wang Yonggui,Xie Yanjun,Qiu Zhe,Zhang Tianpeng,Xiao Zefang
A lignin-based wood modification strategy was proposed by impregnating a composite aqueous modifier consisting of allylated lignin (AL), unsaturated phytic acid amine (TEPA-GMA-PA), and N-hydroxymethyl acrylamide (NMA). The system was designed to enhance the dimensional stability, mechanical properties and flame retardancy of fast-growing fir. AL was synthesized through etherification of industrial alkali lignin with allyl glycidyl ether, endowing the lignin with reactive unsaturated sites for crosslinking. Meanwhile, TEPA-GMA-PA was prepared via a ring-opening addition reaction between glycidyl methacrylate and tetraethylenepentamine, followed by neutralization with phytic acid. The successful synthesis of AL and TEPA-GMA-PA was demonstrated by Fourier Transform Infrared Spectroscopy and Nuclear magnetic resonance spectroscopy. The resulting compound modifier was blended with NMA to form an aqueous polymerizable system. Leaching test demonstrated that the modifier underwent in situ polymerization within the wood structure to form water-insoluble macromolecules, reducing the leaching rate to 34.9%. Modified wood exhibited significant mechanical enhancement with 30.8% and 19.6% increases in modulus of rupture and modulus of elasticity, respectively, while maintaining impact strength to natural wood. Flame retardancy improvements were confirmed by cone calorimetry showing 35.6% reduction in total heat release and 7.2% decrease in total smoke production. Furthermore, the limiting oxygen index increased from 22.6 to 34.7%. The proposed strategy provided a new approach for improving of high-value utilization of wood with lignin-based modifier.
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高影响因子
WOOD SCIENCE AND TECHNOLOGY
·
2025
·Vol. 60
·期 1
·10
·
IF 3
Yu Yang,He Zengcheng,Qiu Zhe,Zhang Tianpeng,Xiao Zefang,Xie Yanjun
Alkali lignin (AL), as a bio-based industrial byproduct, has certain potential in improving the photostability of wood in outdoor applications based on its UV absorption feature. The present study developed aminated low molecular weight depolymerized AL for wood impregnation, and evaluated the pre- and post-modification weathering resistance of the wood. The filling of aminated AL within the wood matrix was demonstrated using methods including scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR) and fluorescence microscopy. Compared with AL treated wood, modified poplar and Chinese fir showed a high weight gain rate increased by 251.8 and 320.9%, respectively, and a low loss resistance rate decreased by 39.9 and 32.5%, respectively. Free radicals exhibited a reduced generation during in situ irradiation. Changes in composition over the same period of weathering treatment were minimized, thereby delaying the structural and morphological alterations induced by weathering. Macroscopic photodegradation and morphological damage observed in the modified wood were substantially mitigated, with the integrity of the anatomical structure preserved. These findings substantiate the protective effect of aminated AL treatment on wood weathering behavior, which is beneficial for enhancing the stability of wood in outdoor applications.
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Green Chemical Engineering
·
2025
·
IF 7.6
Leiming Wang,Wenjiao Ge,Hong Zeng,Chaoli Chen,Yongtong Chen,Kang Li,Han Zhou,Ximin Li,Caili Li,Xiaohui Wang
Deep eutectic solvents (DESs) have emerged as promising green media for lignocellulosic biomass fractionation. However, lignin condensation during processing remains a major bottleneck, hindering efficient separation and downstream valorization. Here, a novel ternary DES composed of p -toluenesulfonic (TsOH), choline chloride (ChCl), and 4-methylguaiacol (4-MGA, a lignin-derived phenolic monomer) was developed to address this challenge. The incorporation of 4-MGA provided dual functionality: it not only promotes lignin dissolution in DES by forming hydrogen bonds and π-π interactions, but also inhibits the condensation of lignin macromolecules via an arylation strategy. Under mild conditions (90 °C, 1 h), the DES system achieved 90.1% delignification and 89.7% hemicellulose removal from Eucalyptus wood, while preserving 90.8% of the cellulose. Furthermore, the directional arylation of lignin mediated by 4-MGA offers a strategy with the potential to circumvent isomer interference in the catalytic preparation of bisphenols. This work demonstrates a rational DES design strategy for enhancing lignin extraction efficiency and opens new avenues for high-value lignin utilization in biorefinery applications.
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ChemCatChem
·
2015
·Vol. 7
·期 7
·1083-1089
·
IF 4.556
Qin Chen,Wei Huang,Peng Chen,Chang Peng,Haibo Xie,Zongbao Kent Zhao,Muhammad Sohail,Ming Bao
Lignosulfonic acid, a byproduct of the paper industry, was demonstrated to be an efficient and green catalyst in water for the stoichiometric condensation of creosol with formaldehyde to synthesize lignin-derived renewable bisphenols. The distribution and structures of the products were confirmed by 1 H NMR, 13 C NMR, and FTIR spectroscopy and X-ray analysis; furthermore, a possible reaction mechanism was proposed. A polycarbonate was prepared from the bisphenol product and characterized as a model application, and thermogravimetric analysis (TGA) showed that decomposition occurred in a single stage with the maximum rate of degradation at approximately 420 °C. Differential scanning calorimetry (DSC) analysis showed that the glass transition temperature and melting peak of the polycarbonate were approximately 122 and 314 °C, respectively. The environmentally friendly characteristics of this study are featured by the integrated utilization of a biorenewable feedstock, a green biomacromolecule catalyst, and a green solvent for the preparation of valuable biochemicals and materials. Graphical Phenomenal phenols: Lignosulfonic acid, a byproduct of the paper industry, is demonstrated to be an efficient, green, and reusable catalyst in water for the stoichiometric condensation of creosol with formaldehyde to synthesize lignin-derived renewable bisphenols. A polycarbonate is prepared and characterized as a model application of the as-prepared bisphenol.
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高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2013
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IF 2.468
Xiaohuan Liu,Jifu Wang,Shouhai Li,Xiaowei Zhuang,Yuzhi Xu,Chunpeng Wang,Fuxiang Chu
The aim of this study was to develop economically UV-absorbent and visible-transparent films. For this purpose, lignin was selected because of its strong ultraviolet (UV) absorbing property. Lignocellulosic butanol residue, as the by-product of lignocellulosic butanol production, is rich in biobutanol lignin (BBL). Herein, BBL was modified with acryloyl chloride and then copolymerized with n-butyl acrylate (BA) and methyl methacrylate (MMA) by free-radical polymerization. The chemical structure of poly(BA-co-MMA) chains was identifiable by 1 H NMR and 13 C NMR spectroscopies, combined with UV–visible spectra to confirm the existence of the aromatic groups that are attributed to BBL in the copolymer . This provided evidence that a BBL graft copolymer was successfully synthesized. The optical, photo-stability, chemical resistance, thermal and mechanical properties of the copolymer were evaluated. The copolymer film can absorb 96.2% of UV light, while allowing 70% or higher transmittance in the visible spectrum when the surface concentration of BBL-AC was 240 μg cm −2 . In addition, the copolymer film retained excellent absorption capacity in the UV region and high transparency in the visible light region after 75 min continuous UV-irradiation or when heated at 100 °C, rendering it potential to use as a UV-absorbent film. The copolymer exhibited good chemical resistance, thermal and mechanical properties compared with pure poly(BA-co-MMA). This strategy not only provides a novel approach for UV-absorbent films but also greatly extends the comprehensive utilization of BBL.
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Energies
·
2026
·Vol. 19
·期 20
·4894
·
IF 3.9
Chenhao Sun,Zhongyang Luo,Shurong Wang,Chunjiang Yu
Developing biomass-derived carbon electrodes with simultaneously optimized pore architecture, graphitic ordering, and surface chemistry remains a challenge for high-performance supercapacitors. Herein, a dual-lignin precursor engineering strategy based on lignosulfonate and alkaline lignin is proposed to construct hierarchically porous carbons via an ex situ method. Benefiting from the complementary characteristics and cooperative interactions of the two lignins, the optimized carbon exhibits a well-balanced porous architecture composed of interconnected carbon nanosheets with predominantly pseudo-graphitic domains accompanied by locally graphitized regions. The mixed-lignin strategy effectively regulates sulfur retention and removal during carbonization, while the coexistence of oxygen- and sulfur-containing functional groups may improve electrode wettability and contribute to charge storage, thereby favoring substantial outer-surface charge accessibility with contributions from other charge-storage processes. Among all samples, the optimized 2L1A electrode delivers a high specific capacitance of 386.7 F g−1at 1 A g−1in a three-electrode configuration. The assembled symmetric supercapacitor delivers an energy density of 40.4 Wh kg−1together with 97.4% capacitance retention after 10,000 charge–discharge cycles. Comprehensive kinetic analyses further demonstrate rapid electron/ion transport, predominant surface-controlled charge storage, and excellent reversibility. This work demonstrates the potential of mixed-lignin precursor engineering for the rational design of high-performance carbon electrodes for advanced supercapacitors.
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高影响因子
BIOCHEMICAL ENGINEERING JOURNAL
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2026
·
IF 3.6
Wenjie Wang,Qiang Li,Niuniu Deng,Gengsheng Ji
Inspired by the protective and structural role of plant cell walls, we developed a synthetic cell wall using cationic lignin and carboxymethyl cellulose to encapsulate Saccharomyces cerevisiae at the single-cell level. This artificial cell wall enhances S. cerevisiae 's fermentation efficiency and improves glucose uptake under extreme environmental conditions. The single-cell artificial cell wall encapsulation markedly improved the metabolic efficiency of S. cerevisiae without substantially impeding its normal growth and reproductive capacity. Notably, the encapsulated S. cerevisiae demonstrated superior cell proliferation over non-encapsulated cell under NaCl stress (P < 0.01). The tolerance of S. cerevisiae to the low temperature at 4 ℃ increased by 14.48%(P < 0.01) respectively after encapsulation of the artificial cell wall. Moreover, the lignin-cellulose artificial cell wall represents a novel strategy to enhance both fermentative capacity and environmental stress tolerance in S. cerevisiae , demonstrating significant potential for industrial-scale applications.
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JOURNAL OF MATERIALS SCIENCE
·
2026
·Vol. 61
·期 8
·5353-5368
·
IF 3.9
Wang Rui,Pang Guoli,Zhu Yuping,Liu Yiming,Zhang Qiang,Ji Yongfeng,Dong Lili,Lei Tingzhou,Ren Suxia
Ideal double-layer capacitor electrodes require both high specific surface area and a porous structure efficiently wetted by electrolyte ions. Therefore, precisely controlling the pore structure of porous carbon materials to synergistically enhance both specific surface area and ion transport efficiency has become a key research challenge. This study employs lignin as a renewable carbon source, utilizing a templating approach to controllably synthesize hierarchical porous carbon materials. It systematically investigates the effects of single MgO hard templates, MgO-P123 dual templates, and single P123 soft templates on material structure and electrochemical performance. The MgO templating agent primarily contributes macropores/mesopores, enhancing ion transport and structural stability; the P123 templating agent mainly contributes mesopores, providing an efficient transport network and high specific surface area; the MgO and P123 dual-templating agents synergistically construct a multi-level pore structure comprising micropores, mesopores, and macropores. The ELCP-0.25 porous carbon prepared using P123 exhibits a high specific surface area and hierarchical porous structure, demonstrating outstanding performance in electrochemical energy storage applications. Within a three-electrode test system, this material displays exceptional electrochemical properties in KOH electrolyte, achieving a specific capacitance of 430 F/g at a current density of 1 A/g. Based on ELCP-0.25, symmetrical supercapacitors assembled with KOH and Et 4 NBF 4 /PC as electrolytes exhibit high specific capacitance and excellent cycle stability of 343 F/g and 161.84 F/g, respectively, with capacitance retention rates of up to 99.33% and 76.64% after 10,000 charge–discharge cycles. This work demonstrates the advantages of the template method in constructing hierarchical porous carbon materials, providing an effective technical approach for converting biomass waste into electrode materials for energy storage devices.
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BIORESOURCE TECHNOLOGY
·
2026
·
IF 9
Xiaomeng Yang,Jianping Li,Yuandong Xu,Dan Wu,He Liu,Yongsheng Zhang,Chunbao Xu
Bio-oil derived from the lignin with natural aromatic structures requires deoxygenation to serve as a petroleum fuel substitute. However, the traditional bio-oil hydrodeoxygenation (HDO) process encounters challenges such as the use of high-pressure H 2 , and precious metal catalysts. In this work, we investigated the effect of NiMn/NC catalyst on the in-situ HDO performance of guaiacol, a commonly used lignin oil model compound. The results indicate that 95.44% conversion of guaiacol and 81.89% deoxygenation products selectivity (cyclohexanol and cyclohexane) can be achieved at 150°C with a water/isopropanol system. During the HDO of real lignin oil, the upgraded oil product achieved a yield of 14.32 wt%, with a high H/C ratio (1.71%). Analysis of the mechanism suggests that the in-situ HDO reaction of substrate is synergistically promoted by the high surface area and weak acidic sites of the carbon support and nickel-oxygen vacancy interface. This work presents an advanced strategy for the in-situ HDO of bio-oil into bio-based liquid fuel by nickel-based catalysts.
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PubMed
高影响因子
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
·
2026
·
IF 6.2
Muhammad Chawla,Xiyue Lu,Mooeez ur Rehman,Fan Sun,Yu Chen,Wei Liu,Yongli Ma,Mingyan Liu,Yujun Zhao
The development of efficient and cost-effective catalysts utilizing non-noble metals for the conversion of biomass and biofuels and valuable chemicals is essential for sustainable energy production. Development of zeolite-based catalyst with high selectivity and stability is crucial for HDO process, yet it remains a significant challenge. HSSZ-13 as a support has not yet been explored in the HDO of phenolic compounds. In this work, we present hierarchical HSSZ-13 zeolite loaded with Ni particles, designed to possess a highly Lewis acid site. Ni loaded HSSZ-13 zeolites with different Si/Al ratios (30, 70, 110 and 400) were synthesized using citrate assisted incipient impregnation method. These catalysts were then evaluated for hydrodeoxygenation (HDO) of guaiacol into cyclohexane, and compared their performance against Ni/SiO 2 , commercial Ni/SiO 2(com) and Ni/Al 2 O 3 . The optimized Ni/HSSZ-13 having Si/Al ratio of 70, showed superior performance under mild conditions. This enhanced catalytic activity is attributed to a synergistic interaction between acidic sites and metallic Ni. Additionally, hierarchical pore structure of Ni/HSSZ-13, which improves Ni dispersion on the catalyst surface, thereby enhancing its performance. Ni 2 + ions residing inside the intracrystalline mesopores or present as isolated species within the HSSZ-13 framework generate Lewis acid sites. These sites greatly improve HDO performance and promote the reaction to produce more cyclohexane. Particularly, this catalyst showed strong ability to break both α-O-4 and β-O-4 bonds in different lignin compounds, highlighting its broad adaptability, durability and practical application. Overall, this catalyst offers an effective and economically feasible route for producing diesel range fuel from renewable biomass.
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