ACS Sustainable Chemistry & Engineering
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2016
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IF 5.267
Jiang Deng,Tianyi Xiong,Haiyan Wang,Anmin Zheng,Yong Wang
Porous carbon materials stemming from biomass have drawn increasing interest because of their sustainable properties. Cellulose, hemicellulose, and lignin are the three basic components of crude biomass, and were investigated to reveal their influence on the derived carbonaceous materials. Huge amounts of oxygen-containing functional groups in cellulose and hemicellulose tend to be eliminated as H2O, CO2, and CO and give micropores during pyrolysis, whereas lignin contains plentiful aromatic units which are chemically inert, and thus produce nonporous carbon materials. When the KHCO3 was introduced during the pyrolysis process, the plentiful hydroxyl in cellulose and hemicellulose underwent dehydration condensation among different parent polymers, which are responsible for the formation of macroporous structure. By contrast, The β-O-4 bands in lignin experience homolysis and give rise to benzene-containing units, which finally result in carbon nanosheets. Furthermore, we demonstrated the mixture of cellulose, hemicellulose, and lignin can display a three-dimensional porous structure (containing macropores, mesopores, and micropores) when less than 50% of lignin is contained.
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ACS Applied Bio Materials
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2022
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IF 0
Yingchun Zhang,Dongjie Yang,Xueqing Qiu,Zhixian Li
Green and controllable preparation of silver nanoparticles (AgNPs) remains a great challenge. In this work, ethanol-extracted lignin-based nanosilver composites (AgNPs@EL) were synthesized at room temperature with the assistance of ultraviolet (UV) radiation. The ethanol-extracted lignin (EL) could serve as natural dispersion carriers and reducing agents for AgNPs. The reducing ability of EL could be further improved under UV irradiation, which enables the rapid synthesis of AgNPs at room temperature. More importantly, due to the good photothermal conversion capacity of EL, AgNPs@EL exhibits remarkably enhanced photothermal performance and excellent photothermal antibacterial ability, which could cause 7.2 and 5.3 log10 CFU/mL reduction against Escherichia coli and Staphylococcus aureus, respectively, under near-infrared (NIR) irradiation (808 nm, 1.8 W/cm2) for 5 min. Furthermore, the composite film obtained by impregnating bacterial cellulose onto AgNPs@EL solution also shows significantly improved mechanical properties and photothermal antimicrobial activity. Therefore, this work may provide insights into the design of lignin-based photothermal-mediated antimicrobial materials.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2025
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IF 3.9
Zitao Yu,Xiyan Dong,Danyang Cao,Zhongfan Luo,Yongguang Yu,Huaze Sun,Zhenyuan Xiao,Jiahua Zhu,Xiaohua Lu,Liwen Mu
Lignin, as a renewable and sustainable additive to replace traditional rubber additives, holds great potential in the development of green tires. However, its application is limited by its complex and heterogeneous structure and its poor compatibility with rubber. This study focuses on the complex structure of lignin, using the Pearson correlation coefficient (PCC) and Spearman correlation coefficient (SCC) to deeply analyze the intrinsic relationship between its structural features and rubber performance. The experimental results demonstrate that the incorporation of lignin significantly enhances the plasticity of rubber materials. Meanwhile, PCC and SCC reveal a significant correlation between the hydroxyl group density in lignin and the performance of rubber. Specifically, an increase in hydroxyl group density contributes to the enhancement of rubber plasticity while concurrently leading to a reduction in its strength. This finding provides important theoretical guidance for the molecular design of lignin-based rubber additives while also confirming the feasibility of lignin as a green rubber additive. Additionally, it offers a new perspective for using data analysis methods to investigate the influence of lignin structure on material properties.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Bingqing Fu,Yihua Xu,Jun Yang,Hongyan Li,Fangtao Xiong,Lizheng Sha,Huifang Zhao,Xiaohong Chen,Jing Li
To achieve high-value utilization of lignin, kraft lignin (KL) extracted from eucalyptus pulping black liquor was modified by demethylation using Lewis acids AlCl 3 (AL) and HBr (HL) and used to partially substitute of polypropylene glycol (PPG) to prepare lignin-based waterborne polyurethane (WPU) emulsion by reacting with isophorone diisocyanate (IPDI). The results of 1 H NMR spectra showed that the hydroxyl content of lignin were respectively 10.13 mmol/g and 8.31 mmol/g after demethylation with AlCl 3 and HBr, which were 73.2 % and 43.1 % higher than that of KL. When 20 wt% of PPG was replaced by AL and HL, the prepared ALWPU-20 % and HLWPU-20 % emulsions had good dispersion and storage stability, with an average particle size of 400 nm and a viscosity of 35.3 Pa·s and 24.5 Pa·s, respectively. Both ALWPU-20 % and HLWPU-20 % films had good mechanical strength, thermal stability and biodegradability, and their crosslinking density, tensile strength and natural degradation rate after 100 days’ landfilling were 19.1 mmol/cm 3 and 17.2 mmol/cm 3 , 10.9 MPa and 10.3 MPa, and 19.21 % and 21.21 %, respectively. Moreover, ALWPU-20 % and HLWPU-20 % films had excellent ultraviolet (UV) shielding performance and the UV light transmittance of them was nearly zero. Compared with HL, AL had higher reactivity and ALWPU-20 % emulsion and film had better comprehensive performance.
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POLYMER
·
2025
·
IF 4.5
Zhihan Wang,Quan Gao,Yongfa Zhou,Yunxiang Xu,Tianxiang Hong,Longjiang Shu
Owing to the advantages of low-cost, lower carbon footprint, and renewable for lignin, dealkalized-lignin (DL) and polyacrylonitrile (PAN) blend precursor fibers with varying compositions and coagulation conditions were prepared using dry-jet wet spinning technology. The high-quality DL/PAN based carbon fibers, free of macro-voids, were obtained through optimizing pre-oxidation and carbonization process, and their microstructures and properties were systematically evaluated. Notably, when DL content was 30 wt%, the tensile strength for precursor fiber and resulting carbon fiber reached maximum values of 460 MPa and 2201 MPa, respectively. Additionally, the electrical conductivity reached a maximum of 79,936 S · m −1 . Partially substituting petroleum-derived PAN with lignin might enhance the sustainability of carbon fiber production and broaden the lignin's application in high-value advanced material systems.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Jiahui Tang,Jiliang Ma,Gaojie Jiao,Youhai Huang,Runcang Sun
The efficient extraction of uranium from seawater remains a significant challenge in nuclear resource recovery. Herein, we report a special nickel-cobalt layered double hydroxide (Ni Co LDH) intercalated with sulfomethylated lignin (SL) via co-precipitation (denoted as Ni-Co@SLx). The SL intercalation accomplishes dual optimization at both structural and functional levels. The sulfomethyl groups on the SL molecular chains expose a plethora of negatively-charged sites within the interlayers, which offer additional sites for electrostatic adsorption and coordination anchoring. Meanwhile, the introduction of SL substantially increases the specific surface area, enabling Ni-Co@SL2 to achieve a 1.51-fold uranium adsorption capacity in comparison to the pristine Ni Co LDH. The optimized Ni-Co@SL2 composite exhibits an exceptional U(VI) adsorption capacity of 298.95 mg g −1 , outperforming most reported LDH-based adsorbents, while maintaining >80 % capacity retention after 5 regeneration cycles. Practical evaluation using natural seawater (Bohai Sea, China, 38.96°N, 121.62°E) reveals its industrial potential, achieving 6.77 mg g −1 U(VI) adsorption within 24 h and reaching 11.33 mg g −1 after 27 days in 500 L seawater. Mechanistic studies indicate that uranium adsorption occurs primarily through electrostatic interaction and chemical adsorption. This study pioneers the strategic integration of functionalized lignin with LDH materials, establishing a sustainable platform for seawater uranium extraction.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2025
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IF 4.1
Chen Yang,Quanxiong Lu,Xianbo Jia,Yujia Ma,Xianliang Song
The development of efficient, non-precious metal catalysts for renewable energy applications is a critical step toward sustainable power generation. This research presents and develops a simple preparation method to prepare composite catalysts based on metal phthalocyanines (MPcs) and fullerene-C 60 to improve the catalytic performance of oxygen reduction reactions (ORR) in direct lignin fuel cells ( DLFC). Electrochemical tests revealed that the FePc-C 60 catalyst demonstrated excellent catalytic performance in the ORR, with a half-wave potential (E 1/2 ) of 0.81 V, which was similar to the 0.82 V of Pt/C. Furthermore, the FePc-C 60 catalyst exhibited a near 4-electron transfer reaction mechanism, with a limiting current density of 3.9 mA cm −2 and H 2 O 2 yield below 4 %. The Tafel slope measured at 31 mV dec −1 , which was lower than the 49.6 mV dec −1 observed for the Pt/C, implying that the catalyst achieves a higher reaction rate at lower potentials. In fuel cell applications, compared to Pt/C, DLFC with FePc-C 60 as the cathode catalyst exhibited a higher maximum power density (590 mW m −2 ), surpassing Pt/C (381 mW m −2 ). This work successfully constructed an efficient and stable non-precious metal catalyst, offering a new perspective for the development of non-precious metal catalysts and high-value utilization of lignin.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Ruoteng Ma,Chao Duan,Chenyue Yan,Qi Fan,Guodong Tian,Lei Dai,Yonghao Ni
Hydrogels exhibit broad application potential in fields such as soft functional materials. This study designed Core-Shell composite hydrogel material (AM) based on double-bond functionalized hyperbranched lignin nanoparticles (DH-LNPs), achieving synergistic regulation of multifunctional and mechanical stability through a “Core-Shell” strategy. DH-LNPs, serving as multifunctional modifiers, form covalent bonds between the high-toughness polyacrylic acid-based shell and the flexible, self-healing TEMPO-oxidized nanocellulose/guar gum core hydrogel, thereby enhancing interfacial bonding. This core-shell architecture significantly improves both structural integrity and environmental tolerance. The hydrogel demonstrates outstanding comprehensive properties: the resulting AM-4 hydrogel exhibited self-healing ability and strong adhesion to a variety of substrates, with high mechanical toughness (3428.9 kJ·m −3 ) and an outstanding UV shielding efficiency of 99.1 %. This study provides new insights for the design of soft functional materials in extreme environments, while expanding the application potential of lignin nanoparticles in high-performance bio-based materials.
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CHEMICAL ENGINEERING SCIENCE
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2025
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IF 4.3
Shuhua Liang,Zhaohui Liang,Minting Liang,Liheng Chen,Jiayi Zheng,Xueqing Qiu
Fatty acid phase change materials encounter leakage issues during phase transition and limited single working temperature in practical use. Therefore, our study developed temperature-responsive phase change microcapsules by compounding lauric acid-stearic acid eutectics (LA-SA) with lignin. Alkali lignin-based AL/LA-SA capsules exhibit stable nanostructure, tunable phase transition temperature within the range of 36–39 °C, which can be adjusted to approach human body temperature, excellent phase change performance with low supercooling, wide operating temperature range, and maintained stability over 50 cycles. Experimental and DFT calculations reveal synergistic effects between lignin’s hydrophilic and hydrophobic groups enable efficient PCM encapsulation and provide nucleation sites for supercooling suppression, offering new theoretical basis for PCM supercooling regulation. Temperature-controllable phase change capsules show broad application prospects, facilitating targeted development and efficient utilization of phase change materials.
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CARBOHYDRATE POLYMERS
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2025
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IF 12.5
Jinlong Zhang,Shiyu Fu,Hao Liu,Juanli Shen,Xi Yuan,Xuepei Zhou
Bioplastics based on lignin-containing cellulose nanofibrils (LCNF) have emerged as attractive alternatives to petrochemical plastics. However, the preparation of LCNF-based bioplastics with excellent wet-mechanical properties and water stability remains challenging. This study reports a sustainable route for the preparation of LCNF-based bioplastics with excellent wet mechanical properties and water stability. First, a deep eutectic solvent was employed to pretreat the bamboo powder to partially remove lignin. Then, the pretreated bamboo powder was esterified by one-step maleic anhydride (MAH) esterification to produce maleic anhydride-esterified LCNF (MLCNF). MLCNF exhibits a high aspect ratio (337), fine diameter (4.6 nm), and high surface charge (1.67 mmol/g). These properties endow MLCNF bioplastics with excellent wet elongation at break (41 %, significantly higher than other cellulose-based bioplastics), wet tensile strength (43.5 MPa), wet toughness (9.8 MJ m −3 ), dry tensile strength (164 MPa), dry toughness (15.7 MJ m −3 ), thermal stability, hydroplastic properties, and water stability (water contact angle: 91°). This research provides a straightforward, eco-friendly, and efficient approach for developing bioplastics with excellent wet mechanical properties and water stability using renewable lignocellulosic resources, with the potential to replace petrochemical plastics.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
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IF 13.2
Baojuan Deng,Hui Liu,Yi Xie,Fei Wang,Baojie Liu,Shuangfei Wang,Chengrong Qin,Chen Liang,Caoxing Huang,Shuangquan Yao
Fire-retardant foams, known for their lightweight, porous and excellent insulating properties, are widely used in sustainable, energy-efficient architecture, particularly high-rise buildings. Inspired by the unique seed-dispersal mechanism of Cistus , this study presents a novel design strategy that leverages the in situ melting of surface-exposed uncondensed lignin to achieve superior flame retardancy. This biomimetic approach enables the rapid formation of an thin renewable char layer (2 mm) within 15 min through the unique bonding and carbonization characteristics of lignin in lignocellulosic biomass. A novel layered flame-retardant polyvinyl alcohol (PVA) foam is developed by incorporating vanillic acid-treated eucalyptus (EF) into ammonium polyphosphate (APP). The foam exhibited exceptional fire-resistant properties, including sustained thermal insulation (2 h at 220 ℃), remarkably high limiting oxygen index (LOI, 51.00 %), ultralow peak heat release rate (pHRR, 24.01 kW m −2 ), and minimal total smoke production (TSP, 0.5 m 2 m −2 ). Notably, the thin heat-insulating char layer maintained stability for 60 min at 400 ℃. This study presents new opportunities for the advanced utilization of wood fibers in sustainable materials.
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Journal of Composites Science
·
2025
·Vol. 9
·期 5
·223
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IF 3.7
Zhi-Hong Ren,Xiao-Ying Li,Yan-Qing Zhao,Yong-Sheng Li,Qiang Wang,Jie-Ping Jia,Julio Sánchez,Kai-Ruo Zhu,Shangru Zhai,Ling-Ping Xiao,Run-Cang Sun
In this study, a novel lignin-based magnetic composite with a shell-and-core structure and high saturated magnetic strength has been developed for the efficient removal of Pb(II) from wastewater. The adsorbent was fabricated through the introduction of silica–amino groups and a cross-linking complex with lignin, utilizing Fe-Fe2O3as a magnetic source. The paramagnetic characteristics enabled its rapid separation from the aqueous solution within merely 15 s. Batch adsorption experiments demonstrated that the adsorbents could reach equilibrium for Pb(II) adsorption within 30 min. When the concentration of Pb(II) is in the low range of 0 to 200 mg/L, the removal rate of Pb(II) approaches 100%, and the theoretical maximum adsorption capacity is as high as 384.2 mg/g. The mechanism analysis indicated that the adsorption process was primarily characterized as monolayer chemisorption. Notably, the resultant bio-composites demonstrated a high level of stability even after eight consecutive adsorption and desorption cycles, with the removal rate of Pb(II) still reaching 82.3%. This work outlines a novel approach for designing highly efficient lignin-derived adsorbents toward wastewater treatment.
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危险品化学品经营许可证（带存储）