CHEMICAL ENGINEERING SCIENCE
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2026
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IF 5.1
Qiyu Liu,Run Tang,Yile Li,Yutao Yang,Wenli Zhang,Fangbao Fu,Xueqing Qiu
Lignin is second abundant component in lignocellulose which acts as a natural binder in plant cell wall. Since the utilization of phenolic and urea–formaldehyde as wood adhesive in furniture continuously releasing toxic formaldehyde gas and damaging people’s health, using natural lignin as wood adhesive performs significant advantages. However, harsh reaction conditions are generally used in lignin extraction from lignocellulose to overcome the dense structure, which causes lignin structural condensation and reduces its adhesive activity. To address this issue, we employed a novel lithium bromide (LiBr) molten salt hydrate (MSH) acidified with citric acid to facilitate the rapid dissolution and hydrolysis of cellulose and hemicellulose with conversion rates of 95.7% and 98.6%, respectively, with less-condensed lignin of a purity of 95.7% isolated in solid part at mild condition at 100 ℃ for 60 min. The obtained lignin can be directly blended with water and used as a plywood adhesive without the addition of any other chemicals addition, demonstrating the dry strength of plywood reached 1.19 MPa, surpassing the industry standard at 0.7 MPa, highlighting the practical viability of the obtained lignin in adhesive applications.
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高影响因子
BIORESOURCE TECHNOLOGY
·
2026
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IF 8.2
Jiaze Yan,Xiaosong Zhang,Yue Huang,Chunping Li,Jiajia An,Daquan Zhang
Lignin-derived Ca-MOF carbon nanofibers enabled efficient fluoride CDI. • CMDNF achieved a fluoride electrosorption capacity of 26.81 mg·g −1 . • Fluoride concentration decreased from 10 to 1.15 mg·L −1 . • The electrode retained 91.27% capacitance after 5000 cycles. • CMDNF retained 75.38% adsorption capacity after 15 regeneration cycles. Valorization of renewable lignin into high-performance electrochemical materials offers a sustainable route for advanced water treatment, yet achieving efficient fluoride removal together with long-term electrode stability remains challenging. Herein, we report a hierarchical Ca-MOF/lignin-derived carbon nanofiber (CMDNF) electrode fabricated via in situ solvothermal growth of a Ca-based metal–organic framework on electrospun lignin nanofibers, followed by controlled carbonization. This strategy converts biomass-derived nanofibers into a conductive and hierarchically porous carbon framework integrated with Ca-containing surface environments favorable for fluoride electrosorption. Structural characterization reveals that Ca species are uniformly distributed throughout the carbon architecture, while the lignin-derived framework provides structural robustness, efficient electron transport, and improved ion-accessible pathways. The optimized CMDNF electrode exhibits a specific capacitance of 163F·g −1 at 2 mV·s −1 and retains 91.27% of its initial capacitance after 5000 charge–discharge cycles, demonstrating good electrochemical stability. In fluoride electrosorption experiments, it delivers a maximum adsorption capacity of 26.81 mg·g −1 and reduces the fluoride concentration from 10 mg·L −1 to 1.15 mg·L −1 under model-solution conditions, below the WHO guideline value of 1.5 mg·L −1 . XPS and EPR analyses suggest that the enhanced fluoride removal arises from the combined contribution of Ca-containing oxygen-coordinated surface environments, defect-rich carbon surfaces, and electric double-layer electrosorption. This work demonstrates a feasible strategy for converting lignin into high-performance CDI electrodes and provides useful insight into the rational design of biomass-derived hierarchical materials for fluoride removal at electrode–electrolyte interfaces. Download: Download high-res image (166KB) Download: Download full-size image
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
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IF 8.7
Xiufang Wei,Haisheng Wu,Hao Li,Minru Xiang,Shengyuan Liang,Jiangcai Chen,Liting Zheng,Denghui Ren,Jing Li
LTiO 2 prepared by hydrothermal synthesis enabled surfactant-particle synergy. • LTiO 2 promoted honeycomb-like droplet packing and suppressed demulsification. • LTiO 2 reduced the aging sensitivity of emulsified asphalt evaporative residue. Conventional surfactant-stabilized emulsified asphalt can achieve rapid emulsification by reducing oil-water interfacial tension. However, the interfacial film formed by surfactants has limited mechanical strength, making the emulsion prone to coalescence and demulsification during storage and transportation. In addition, surfactants mainly function during the emulsification stage and provide limited protection against thermo-oxidative and ultraviolet(UV) aging of the evaporative residue after emulsion breaking. In this study, lignin-TiO 2 composite particles (LTiO 2 ) were prepared by a hydrothermal method and combined with cetyltrimethylammonium bromide (CTAB) to construct a cationic emulsified asphalt system based on surfactant-particle synergy. LTiO 2 significantly improved the storage stability of emulsified asphalt, reduced the average droplet size, and maintained a high zeta potential. Cryo-scanning electron microscopy(Cryo-SEM) results showed that LTiO 2 promoted close droplet packing and a honeycomb-like network structure, thereby enhancing resistance to coalescence and demulsification. After short-term aging and UV aging, LTiO 2 weakened the rheological hardening of the evaporative residue and reduced the growth of carbonyl and sulfoxide indices. Atomic force microscopy(AFM) further showed that LTiO 2 inhibited aging-induced bee-like structure evolution and polar component aggregation. These results indicate that CTAB enables rapid interfacial tension reduction and droplet formation, while LTiO 2 strengthens the oil-water interfacial film and improves the thermo-oxidative and UV aging resistance of the evaporative residue after demulsification. This study provides a new strategy for stable and green multifunctional emulsified asphalt. Download: Download high-res image (151KB) Download: Download full-size image
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2026
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IF 8.3
Yan Wu,Dongzhi Zhang,Yuncheng Ji,Yubiao Zhang,Hao Zhang,Zhaogang Zhang
Moisture‑enabled electricity generation offers a sustainable route for harvesting ubiquitous atmospheric energy. In this study, a high‑performance moisture‑electric nanogenerator was developed based on blend electrospun nanofibers of polyacrylonitrile, sodium polystyrene sulfonate, and lignin (PAN/PSSA/lignin). An optimized PAN:PSSA mass ratio yielded uniform fibers with sawtooth‑like wrinkled nanostructures, which enhanced the specific surface area, moisture absorption, and ion transport. The device achieved an open‑circuit voltage of 0.85 V, a short‑circuit current of 13.52 μA, and a power density of 11.47 μW/cm 2 at 97% relative humidity (RH). The electrochemical activity of porous aluminum electrodes in humid environments enabled the formation of a stronger and longer-lasting ionic concentration gradient, yielding approximately 1.8 times voltage enhancement. The PPL‑MEG exhibited outstanding stability exceeding 100000 s at 97% RH with negligible degradation, as well as modular scalability. Five units connected in series and in parallel yielded 2.87 V and 44.25 μA, respectively. Furthermore, the device functioned as a self‑powered humidity sensor with a wide detection range of 11–97% RH and fast response. Integrated into a commercial face mask, it successfully recognized normal breathing patterns, as well as abnormal patterns such as Cheyne‑Stokes respiration and Biot’s respiration, demonstrating strong potential for wearable respiratory monitoring.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
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IF 13.2
Yihui Xia,Xiang Zhang,Liangliang An,Yuhui Xie,Feng Wu,Yi Mei,Delong Xie,Dong Feng
A novel, environmentally friendly flame retardant (FB) composite was developed by integrating cross-linked kraft lignin (FSK) and black phosphorus (BP) for thermoplastic polyurethane (TPU) applications. FSK was prepared by C C Friedel-Crafts crosslinking between benzene rings and amino/silanization between hydroxyl groups of lignin. The FB, with an optimal FSK:BP ratio of 7:3 at 1 wt%, significantly improved the flame retardant properties of TPU. It achieved a limiting oxygen index (LOI) of 30.7%, a 91% increase in char residue, and UL-94 V-0 classification, surpassing the performance of pure TPU. Cone calorimeter tests revealed a 21.26% reduction in total heat release (THR) and a 37.06% reduction in peak heat release rate (PHRR). The flame retardancy mechanism involved BP and FSK's crosslinked structure catalyzing the formation of a stable graphitized char layer, while FSK, through its nitrogen and silicon components, released inert gases such as NH 3 /CO 2 , enhancing the stability of the char layer. The synergistic effect provided dual-phase flame retardancy (condensed-phase and gas-phase) at low additive levels, maintaining mechanical properties (tensile strength: 20.1 MPa). This approach, using biomass-derived lignin and low levels of BP, offers an environmentally friendly alternative to traditional flame retardants, making it a promising strategy for high-safety applications.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Chaoming Xie,Shengxi Jiang,Yingqi Li,Donglin Gan,Yingbo Wang,Hongping Zhang,Jie Weng,Zhenyu Zhang,Hongyu Sun,Xiong Lu
High-altitude environments significantly hinder wound healing due to low temperatures and reduced oxygen levels, leading to increased reactive oxygen species (ROS) and decreased antioxidant enzyme activity. Conventional hydrogel dressings are inadequate under these extreme conditions, as they lack cryoprotective and oxygen-generating capabilities. To address these challenges, we developed a multifunctional DL-PCaO 2 -PAM hydrogel with self‑oxygenating, anti-freezing, antioxidant, and UV-resistant properties to promote wound healing in high-altitude environments. The hydrogel was synthesized by incorporating dopamine-modified calcium peroxide nanoparticles (PCaO 2 NPs), demethoxylated lignin (DL), and polyacrylamide (PAM) using a glycerol/water binary system. This formulation enables continuous self-generation of oxygen, ensuring a sustained oxygen supply under hypoxic conditions. The anti-freeze property of hydrogel arises from the presence of phenolic hydroxyl groups and the glycerol/water system, which prevent ice formation at subzero temperatures. Furthermore, PCaO 2 NPs and DL endow the hydrogel with excellent mechanical strength, tissue adhesion, and UV resistance properties under subzero temperatures. Moreover, the DL-PCaO 2 -PAM hydrogel effectively scavenges ROS, alleviate inflammation, and accelerates wound healing in both diabetic and high-altitude hypoxic wound models. This innovative hydrogel offers a promising solution for wound care in high-altitude settings and holds potential for broader clinical applications.
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高影响因子
Journal of Bioresources and Bioproducts
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2026
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IF 13
Zhenke Wei,Jiayu Liu,Yonggui Wang,Zefang Xiao,Yanjun Xie
Paper derived from plant fibers is considered a highly promising alternative to non-degradable plastic packaging. However, its widespread use in packaging is limited by its poor water- and oil-proof properties. To address this challenge, this study developed a polyvinyl alcohol (PVA)/lignin nanoparticles (LNPs)/stearic acid (SA) (PLS) Pickering emulsion composite coating to fabricate high-performance biodegradable paper. In the emulsion system, the PVA acted as an oil-repellent in the aqueous phase, the SA served as a water-repellent in the oil phase, and the LNPs functioned as emulsifiers that effectively stabilized the emulsion. Owing to the synergistic effect among PVA, SA, and LNPs, the coated paper exhibited good water- and oil-proof properties (with a water contact angle of 111.2°, Cobb 60 value of 17.73 g/m 2 , and Kit rating exceeding 9/12), along with high mechanical strength (including a dry tensile strength of 7.12 kN/m and a wet tensile strength of 0.97 kN/m). While significantly enhancing performance, the PLS emulsion coating retained the environmental benefits of paper, could be easily removed to facilitate fiber recycling, and the coated paper was fully degradable in soil within 120 d. Overall, the PLS emulsion coating effectively enhanced the properties of paper without compromising its eco-friendly characteristics, demonstrating significant potential for promoting the substitution of plastic with paper.
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高影响因子
FUEL
·
2026
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IF 7.5
Tao Ruan,Lifeng Li,Xinping Ouyang,Xueqing Qiu
Depolymerizing lignin is one of the most effective approaches for its high-valued utilization. However, the high oxygen contents in lignin depolymerized products cause the low calorific value, and hence limit their application in liquid fuels. A high efficiency 0.5 wt% Pd/WO x -ZrO 2 catalyst was designed and applied in the process for the depolymerization of lignin in this work. The effect of preparation methodology of catalyst support, the molar ratio of W to Zr, and Pd loading on both the structure of catalyst and catalytic activity to lignin depolymerization were investigated. It was found that the catalyst prepared by hydrothermal method exhibited a large specific surface area, more uniform distribution of supported Pd, as well as higher acid content and oxygen vacancies, which contributed a good catalytic activity. Moreover, the lower Pd loading and higher dispersion of Pd particles were beneficial for hindering the decrease in the specific surface area of the WO x -ZrO 2 support, and hence increasing the acidic sites of the catalyst, which also promoted both the cleavage of C-O bonds in lignin subunits and the alkylation of depolymerized products. When the catalyst prepared with 1:1 of W/Zr molar ratio and 0.5 wt% of Pd loading contributed to higher yields of bio-oil and aromatic monomers, achieving 83.30% and 35.49%, respectively. Among the aromatic monomers, 87.86% were demethoxylated alkylphenols, which significantly reduced the oxygen content of the depolymerization products.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2020
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IF 10.652
Yu Pan,Hua Ma,Zhe Li,Yiwen Du,Yan Liu,Jixiang Yang,Guowei Li
The selective conversion of veratryl alcohol (VA), a model compound of lignin, to produce veratraldehyde was investigated in a simple light-driven system consisting of photosynthetic pigment chlorophyllin and VA. Irradiation experiments and liquid chromatography tandem mass spectrometry analysis indicated that light in the wavelength range of 310–420 nm induced the efficient conversion of veratryl alcohol to veratraldehyde (76% in 4 h). Results from differential pulse voltammetry and linear sweep voltammetry indicated that light enhanced the two reduction peaks of chlorophyllin and boosted the photocurrent from 2.7 to 3.8 μA/cm 2 at 0.8 V between excited chlorophyllin and electrodes, confirming the occurrence of photoelectrons transferring between excited chlorophyllin and oxygen in the presence of light. Quenching experiments further demonstrated that superoxide anion radicals, produced via one-electron reduction reaction between triplet chlorophyllin and oxygen, were responsible for the efficiently selective conversion of veratryl alcohol to veratraldehyde. Our results not only contribute to revealing the role of reactive oxygen species and excited photosynthetic pigment chlorophyllin in the photochemical conversion of lignin model compounds, but also provide ideas for applications of chemical processing in lignin utilization for valuable chemical production.
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高影响因子
BIORESOURCE TECHNOLOGY
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2026
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IF 9
Xiaoyu Pei,Haoyu Lei,Jiaqi Li,Haojie Zhang,Jun Xie,Meishan Fan
Developing an environmentally friendly and efficient pretreatment method to achieve full-component utilization of biomass components (cellulose, hemicellulose, and lignin) is essential for sustainable biorefining. The TsOH/EG system was applied to simultaneously fractionate the three major constituents, yielding excellent cellulose preservation along with high removal efficiencies for hemicellulose and lignin. Under optimal conditions (2.5 % TsOH (w/w), EG: H 2 O = 60:40 (v/v), 160 °C, 30 min), cellulose retention reached 90.99 %, with complete hemicellulose removal (100 %) and 60.59 % lignin removal achieved. Concurrently, the one-pot catalytic dehydration of hemicellulose yielded 31.44 % furfural. Lignin recovered from the pretreatment liquor via acid precipitation was recycled as the surfactant (LBS) in the fermentation process, enabling the ethanol yield to be maintained at 84.35 % even at a high solid loading of 25 % (w/v). Mass balance and energy analysis further indicate that processing 1 kg of wheat straw (WS) using the 2.5 % TsOH/EG pretreatment can generate 67.35 g furfural, 256.71 g ethanol, and 90.40 g lignin-based surfactant (LBS), achieving an energy recovery rate of 76.82 %.
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PubMed
高影响因子
ChemistrySelect
·
2026
·Vol. 11
·期 1
·e05158
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IF 2
Chunmin Xu,Long Cheng,Juan Meng,Jing Luo,Jie Jiang,Hengfei Qin
Heterogeneous catalysts with high activity, environmental adaptability, and stability are urgently needed for water pollutanion treatment. In this study, biochar (NLSBC) with a large specific surface area and multiple active sites was obtained by activating lignosulfonate with CaC 2 O 4 and CH 4 N 2 O, which was used to load CoMn 2 O 4 (CMO) to prepare NLSBC/CoMn 2 O 4 to activate peroxymonosulfate (PMS) to achieve efficient degradation of norfloxacin (NOR). The degradation rate of NOR by the NLSBC/CMO-PMS system under optimal conditions (NOR-30 mg/L, PMS-0.25 mM, and catalyst-20 mg) was as high as 99.42%, and the degradation rate remained at 79.09% after five cycles, which was suitable for various natural water sources. Combined with quenching experiments, EPR analysis, and electrochemical analysis, it was proven that , 1 O 2 and electron transfer were the main reaction pathways of the NLSBC/CMO-PMS system. The ecotoxicity assessment showed that the toxicity level was significantly reduced after treatment with NLSBC/CMO catalyst. In summary, NLSBC/CMO provides a new idea for developing friendly catalysts and has potential applications in treating organic wastewater. Graphical This study demonstrates that a spinel metal oxide supported on biochar catalyst (2NLSBC/CMO) successfully activates PMS to degrade NOR. The catalyst, characterized by its rich Co/Mn active sites and efficient electron transfer, achieves an 99.42% NOR degradation rate within 60 min. The 2NLSBC/CMO/PMS system produces reactive species, including SO4•-, •OH, •O2- and 1O2, thereby removing NOR.
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高影响因子
JOURNAL OF CATALYSIS
·
2026
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IF 6.5
Yishuang Wang,Lei Liu,Mingqiang Chen,Defang Liang,Chang Li,Jun Wang,Haosheng Xin
Lignin valorization is crucial for obtained sustainable fuels and chemicals, however its complex structure challenges efficient conversion. Herein, we designed a Ru-modified Co/attapulgite (CoRu x /ATP) catalysts for achieving the catalytic depolymerization of lignin (CDL) under ethanol coupled with H 2 medium to liquid fuel and guaiacols. CoRu 1 /ATP exhibited exceptional catalytic efficiency under optimal conditions, where the yields of liquid product and guaiacols reached 82.82 % and 584.67 mg/g, respectively. Experiments with model compounds demonstrated that the addition of Ru could effectively reduce the activation energy of the β-O-4 bond cleavage, which decreased from 78.6 kJ·mol −1 to 73.5 kJ·mol −1 . Characterization results indicated that the Ru additive yielded Co–Ru interfaces and its hydrogen spillover effect promoted the reduction of Co 3 O 4 to CoO and metallic Co (Co 0 ) to produce more oxygen vacancies (V O ). Additionally, the research on reaction mechanisms revealed V O and CoO phases in CoRu 1 /ATP enhanced the breakage of C–O bonds of lignin and the adjacent metallic Co and Ru sites and Co–Ru interfaces improved the activation of ethanol and molecular hydrogen into active hydrogen (H*) species to stabilize reactive intermediates and enhance hydrogenation reaction. The findings provide a potential method for directional lignin conversion.
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高影响因子
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