Advanced Science
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2025
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IF 14.1
Yan Ma,Mu He,Jiaxuan Wang,Fuying Ma,Hongbo Yu,Yaxian Zhou,Shangxian Xie
Current sound-absorbing materials, reliant on nonrenewable resources, pose sustainability and disposal challenges. This study introduces a novel collagen-lignin sponge (CLS), a renewable biomass-based material that combines collagen's acoustic properties with lignin's structural benefits. CLSs demonstrate high porosity (>0.97), lightweight (10 mg cm − 3 ), and exceptional broadband noise absorption performance (sound absorption coefficient exceeding 0.9 across 2000–6300 Hz). Due to their unique hierarchical and aligned pore structure, CLSs display superior low-frequency sound-absorbing capabilities and a high noise-reduction coefficient of 0.64 (for a 30-mm-thick sample). A geometric model is also developed to evaluate and predict the sound absorption performance with high consistency to the experimental results. Additionally, the inclusion of lignin as a green crosslinker has significantly improved the thermal stability and compressive strength by ≈600% compared to collagen sponges alone. The innovative integration of collagen and lignin in this study not only leverages the benefits of renewable resources but also presents a cost-effective and straightforward preparation process, positioning CLS as a promising alternative for the construction of sound-absorbing materials seeking sustainable solutions.
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PubMed
高影响因子
Gels
·
2025
·Vol. 11
·期 4
·283
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IF 5.3
Jianhong Lin,Mengyao Chen,Wei Zhao,Shengyu Zhang,Jialin Liu,Yang Zhou,Lei Jiang,Jiantao Zhang
In recent years, conductive polymer hydrogels based on polypyrrole (PPy) combined with electrical stimulation (ES) have emerged as a promising approach for chronic wound repair. However, in practical applications, PPy often exhibits limitations such as poor water dispersion, weak inherent conductivity and a lack of biological functionality. To address these challenges, this study proposes an innovative design of a conductive hydrogel that employs a natural biopolymer, lignin sulfonate (Lgs), as both a dispersant and dopant for PPy, while incorporating silver nanoparticles (Ag NPs) to confer the hydrogel antibacterial properties. The results showed that the water dispersion of PPy was significantly improved, and the conductivity of the hydrogel was as high as 2.82 ± 0.04 mS/cm through the double conduction mechanism of PPy and Ag NPs. The hydrogel exhibited antibacterial activity against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), and the antibacterial rate could exceed 90%. In vitro tests demonstrated that the hydrogel exhibited good biocompatibility, adhesion ability (7.97 ± 0.56 kPa) and hemostatic ability. Furthermore, in vivo animal experiments showed that the hydrogel combined with ES achieved 93.71 ± 2.46% wound closure within 14 days, which can significantly accelerate wound healing, promote collagen deposition and epithelial tissue regeneration. These findings demonstrate that the developed hydrogel can serve as an effective platform for ES-assisted chronic wound repair.
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高影响因子
RENEWABLE ENERGY
·
2025
·
IF 9.1
Yongyuan Deng,Yichao Ye,Tao Yin,Zhipeng Tian,Chao Wang,Ying Chen,Zhi Yang,Junling Tu,Riyang Shu
Hydrodeoxygenation (HDO) is a common refinery process to convert oxygen-containing lignin pyrolysis oil into high-quality hydrocarbon liquid fuels. In this work, we prepared a core-shell Ru@SiO 2 -Al 2 O 3 catalyst and employed it in the HDO of phenolic compounds and lignin pyrolysis oil. The unique core-shell structure of the catalyst reduces the size of Ru metal particles, which significantly improves the hydrogenation catalytic activity. The high surface area, large pore size, and large pore volume of the SiO 2 shell provide a favorable environment for the substrate transfer during the reactions, meanwhile the doped Al 2 O 3 introduces a substantial number of acid sites for the catalysis of deoxygenation. The synergistic effect between the metal sites and acid sites greatly promotes the HDO reaction efficiency. Under mild conditions of 220 °C and 1 MPa H 2 , Ru@SiO 2 -Al 2 O 3 catalyst achieved a guaiacol conversion of 99.9% and a cyclohexane selectivity of 99.9%. This catalyst also demonstrates an outstanding stability, with catalytic activity little loss after 6 recycles. Furthermore, an efficient HDO performance was obtained in the upgrade of other phenolic compounds and lignin pyrolysis oil. At the temperature of 240 °C, the content of hydrocarbons in lignin pyrolysis oil increased from 15.4% to 92.7%. These results indicate that Ru@SiO 2 -Al 2 O 3 holds significant potential for the efficient HDO refinery, providing a promising avenue for the future biofuel development.
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ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Xinyi Hui,Cheng Zuo,Jiyun Qi,Jialong Wen,Tong-Qi Yuan
Aqueous two-phase system (ATPS) Pickering emulsions offer an attractive alternative to traditional oil–water emulsions (e.g., W/O, O/W, and O/W/O) for cosmetics, food processing, biotechnology, and particularly drug delivery. However, their scope of application is hindered by instability and toxicity concerns. Thus, developing a safe, oil-free, and long-term stable water-in-water (W/W) Pickering emulsion based on ATPS remains a critical challenge. Herein, we innovatively developed a safe, oil-free, long-term stable water-in-water (W/W) Pickering emulsion stabilized by green bamboo-derived hydrophobic lignin-containing cellulose nanofibers (H-LCNFs) for drug delivery applications. Hydrophobic H-LCNFs were prepared from bamboo via deep eutectic solvent (DES) pretreatment coupled with facile hydrophobization and employed to stabilize dextran (Dex)/polyethylene glycol (PEG) ATPS-based W/W emulsions. Systematic investigation of PEG/Dex composition, H-LCNF concentration (0.1–0.5 wt %), and pH revealed that 0.3 wt % H-LCNF conferred exceptional long-term stability (negligible droplet size change over 7 days) through electrostatic repulsion under pH 7–9, while elevated pH enhanced electrostatic repulsion, imparting significant pH responsiveness. Crucially, this system achieved resveratrol (RSV) encapsulation efficiency (62.11% to 95.6%) and retention rate (59.84% to 89.18%) surpassing the current level for hydrophobic drug delivery. Overall, this green, nontoxic ATPS stabilization strategy unlocks high-value lignocellulosic biomass utilization and provides a reference value for the research field of drug delivery.
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高影响因子
FUEL
·
2025
·
IF 7.5
Xiang Tan,Peng Luo,Liya Cao
Hydrodeoxygenation (HDO) is pivotal for upgrading lignin-derived streams into drop-in aviation fuels. Efficient aryl C–O bond cleavage with complete deoxygenation typically requires harsh conditions. Here we report electron-rich Pt nanocatalysts that convert lignin-derived model compounds and lignin oil to jet-range cycloalkanes under notably mild conditions (100 °C, 10 % H 2 /Ar at 0.5 MPa). Alkyl cyclohexanes are obtained in 95.2 % yield from a representative model substrate and 90.5 % from lignin oil. Time-resolved profiling and cascade-kinetics analysis indicate that aryl C–O bond scission is the rate‑determining step. Differential charge density and reaction free‑energy analyses support that increasing electron density on Pt promotes H* activation and lowers the free‑energy change (ΔG) for C–O cleavage, consistent with the enhanced activity. The catalysts exhibit broad substrate scope and reusability. This work provides a practical low-temperature route and an electronic-structure design principle for energy-efficient upgrading of lignin-derived oils to jet-range cycloalkanes.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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2025
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IF 6.2
Dingkai Wang,Mingyu Cui,Wei Zhao,Jin Zhang,Meiling Liu,Shanglong Chen,Xutang Liu,Yanjun Li,Shangshang Ma,Xian-Yong Wei
Lignin, the most abundant renewable resource of aromatics in nature, is recognized as an alternative to fossil-based fuels and chemicals. In this study, a phosphomolybdic acid-ionic liquid (PMA-IL) [BSHMIM]H2PMo12O40 was synthesized and used as a catalyst for further oxidative depolymerization of extracted lignin to prepare valuable chemicals. Under optimized conditions, the conversion of lignin reached 61.33%, and the total yield of target products (vanillin, vanillic acid, and methyl vanillate) was 28.00 mg·g–1, where the selectivity of methyl vanillate reached 56.43%. The liquid products and residues obtained under the optimum conditions were analyzed, further confirming the advantages of PMA-IL compared with single PMA. In addition, this method also has an excellent catalytic effect for other types of lignin and presents a good substrate applicability. Finally, based on the research results of model compounds, the possible reaction pathway of the formation of vanillin, vanillic acid, and methyl vanillate was proposed.
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高影响因子
WATER AIR AND SOIL POLLUTION
·
2025
·Vol. 237
·期 6
·331
·
IF 3
Chen Xinyu,Shen Xudong,Hua Yu,Lian Jianjun,Kong Qiaoping,Ye Tianran,Chen Bo,Wang Xinyang
The lignocellulosic biorefinery sector holds significant potential to play a pivotal role in advancing global carbon neutrality goals. However, the efficient utilization of waste lignin remains a critical bottleneck, severely impeding the sustainable development of this industry. This study used a two-step method to prepare zinc and nitrogen activated lignin (Zn/N-lignin), and investigated its removal performance, influencing factors, and potential mechanisms for hexavalent chromium Cr(VI) in water. Results indicated that Cr(VI) removal process conformed to the Langmuir adsorption isotherm model and pseudo-second-order kinetic model. At an initial Cr(VI) concentration of 10 mg·L −1 and an adsorbent dosage of 400 mg·L −1 , the maximum adsorption capacity at 298 K was 284.61 mg·g −1 . Low concentrations (less than 0.1 mmol·L −1 ) of cations Ca 2+ and Mg 2+ , as well as competitive anions H 2 PO 4 − and NO 3 − , have little effect on the removal of Cr(VI). Zn/N-Lignin possessed a good regeneration performance, and the removal efficiency still reached more than 80% after five adsorption and desorption times. Spectral analysis and density functional theory calculations indicated that the main mechanisms of Zn/N-Lignin for removing Cr(VI) from water were electrostatic adsorption, hydrogen bonding and chemical reduction. In order to investigate the environmental impact of the preparation process of Zn/N-Lignin, a life cycle assessment (LCA) was conducted and the contribution of each component to the production of Zn/N-Lignin was analyzed. These results show that Zn/N-Lignin is not only an effective pathway for lignin resource utilization, but also an economically efficient adsorbent for Cr(VI) removal. Graphical
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GREEN CHEMISTRY
·
2025
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IF 9.2
Fei Wang,Yisong Zhang,Lupeng Shao,Chao Wang,Zhe Ling,Xianhai Zeng,Feng Xu,Yu Liu
The sustainability and profitability of biorefineries depend on the efficient utilization of all lignocellulosic components. Therefore, developing an integrated pretreatment process that facilitates efficient fractionation and targeted valorization is essential to ensure the viability of future biorefinery systems. Here, we present an integrated fractionation strategy that efficiently separates all major lignocellulosic components and converts them into a variety of valuable products. Specifically, an ultra-low concentration of p-toluenesulfonic acid (p-TsOH) selectively depolymerizes hemicellulose to xylose at a high yield (93.86%), while preserving cellulose and lignin. The resulting xylose hydrolysate is directly mixed with methyl isobutyl ketone (MIBK) to form a biphasic system, in which the Lewis acid AlCl3 cooperates with p-TsOH to dehydrate xylose into furfural with a yield of 93.14 mol%. The p-TsOH treated solids are subsequently subjected to mild hydrolysis in an acidified LiBr molten salt hydrate (MSH) system, yielding glucan oligomers at 76.34% and recovering lignin with a yield of 79.64%. Spectral analysis shows lignin enriched in less-condensed moieties (Hibbert's ketones, benzodioxane), favouring downstream valorization. Glucan oligomers are isolated by antisolvent precipitation. A screening environmental assessment based on the experimentally validated mass balance (100 kg bamboo feed) indicates a low fresh-material demand and manageable energy use: fresh PMI (process mass intensity, chemicals make-up only) ≈0.28 kg kg−1 combined products; E-factor ≈0.30 kg kg−1 (excluding water); and an energy intensity of ≈27.9 MJ kg−1 (≈1.39 kg CO2e per kg, assuming natural gas heating). This approach thus offers a practical and environmentally credible route to co-produce furfural, glucan oligomers, and structurally favourable lignin from lignocellulosic biomass.
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高影响因子
Chemosensors
·
2025
·Vol. 13
·期 12
·434
·
IF 3.7
Wenchen Li,Weiying Lu
Chrysanthemum, a traditional medicinal and edible plant, possesses diverse health-promoting properties attributed to its rich profile of bioactive compounds. However, the intrinsic quality, influenced by the composition of fundamental components like starch and lignin, varies significantly across different cultivars and origins. This study establishes a comprehensive phytochemical profile of 12 representative Chinese chrysanthemum cultivars by systematically quantifying their starch and lignin contents. Furthermore, it develops and validates a novel, low-cost rapid detection method for starch utilizing smartphone-based colorimetry. The starch content, determined by a colorimetric anthrone-sulfuric acid assay, ranged from 2.68 to 18.69 g/100 g, while the lignin content, measured via the acetyl bromide digestion followed by UV spectrophotometry at 280 nm, varied from 4.21 to 13.63 g/100 g, revealing substantial inter-cultivar differences. For starch analysis, a low-cost, immediate, general-purpose, and high-throughput (LIGHt) smartphone-based colorimetry was implemented. Standard curves constructed from both absorbance and the LIGHt assay demonstrated excellent linearity (R2> 0.99). The method’s performance was evaluated under different lighting conditions and across various smartphone models. The UV spectrophotometry condenses lignin quantification to a single 30-min digestion–reading cycle, bypassing the two-day Klason protocol and increases efficiency greatly. The work successfully provides a foundational component analysis and validates a portable, high-throughput framework for on-site quality control of plant-based products, demonstrating the strong potential of smartphone-based colorimetry for rapid starch detection and a complementary laboratory-scale lignin assay.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Wei Zhong,Jie Zheng,Penghui Li,Wenjuan Wu,Yongcan Jin,Shumei Wang,Bo Jiang
Lignin provides a new choice for supercapacitor electrode materials due to its high carbon content and abundant functional groups. The energy storage capacity of conventional lignin-derived electrode materials is frequently constrained by its architectures, resulting in characteristically diminished electrochemical efficacy. In this regard, we prepared hierarchical porous carbon (Ni@NLHPC) with the assistance of nitrogen atoms through the coordination of lignin with nickel. The coordination with lignin can effectively load nickel atoms onto the surface of carbon materials. The intense interaction between nitrogen and nickel effectively inhibits the excessive growth of nickel nanoclusters and improves their dispersion. The material demonstrates an impressive specific capacitance of 445.73F/g within the three-electrode system, showcasing its potential for high-performance supercapacitors. After the current density is increased by 40 times, the capacitance retention rate can reach 73.22 %. On this basis, we assembled a Ni@NLHPC/Ni@NLHPC symmetrical supercapacitor. The maximum energy density is 15.04 Wh/kg at a power density of 125 W/kg. After 10,000 constant current cycles, the capacitance retention rate is 75.91 %, which is a good prospect for application.
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ACS Sustainable Chemistry & Engineering
·
2021
·
IF 8.198
Jiang-Meng Yuan,Wen-Feng Ren,Ke Wang,Ting-Ting Su,Gao-Jie Jiao,Chang-You Shao,Ling-Ping Xiao,Run-Cang Sun
The three-dimensional structure of natural lignin is destroyed during the extraction and separation processes to generate the fractions with low molecular weight, which cannot be directly applied as high value-added binders for lithium-ion batteries because of its electrolyte solubility. Besides, the elasticity of polymeric binders is quite important to accommodate the large volume change of electrode materials during discharge and charge processes, whereas this problem is neglected. In this work, three-dimensional lignin (L)–polyacrylic acid (PAA) copolymeric binders (L-co-PAA) are designed and synthesized through esterification reaction between aliphatic −OH groups of L and −COOH groups of PAA. The L-co-PAA films with the mass ratio (1:3) of L to PAA possess the ultrahigh elasticity with 400 and 600% stretching for 300 cycles and tensile strain of 630%, mainly because the copolymerizing of L and PAA can weaken hydrogen bonding forces between PAA chains and the rotation of −C–O– single bond within ester linkage can further increase their elasticity, which contributes to maintain the integrity of the electrodes for lithium-ion batteries, especially for silicon-based electrodes. The silicon-based electrodes using L-co-PAA as binders display high initial coulombic efficiency (84%) and excellent cycling stability (939 mA h g–1 after 1000 cycles). This study offers a facile method for the fabrication of the low-cost polymeric binders with ultrahigh tensile strain and the implementation of the high-value utilization of lignin.
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2025
·
IF 3.9
Hongzhao Song,Rong Chen,Qin Yang,Junping Ma,Lijun Chen,Yumei Huang
Designing and fabricating hydrogel supercapacitors (SCs) with ultrahigh energy and power densities and multienvironmental adaptability remains challenging due to the inherent conflict between “ion transport kinetics” and “charge storage capacity.” Herein, a metal phenolic network was formed using lignin catalyzed by Cu2+ ions and reinforced with phytic acid (PA)-cross-linked poly(acrylic acid) to develop a hydrogel electrolyte with homogeneous ion diffusion channels. Then, a polyaniline (PANI) electrode layer was grown in situ on the surface of the electrolyte to construct an integrated hydrogel SC with ultrahigh energy and power densities (the maximum energy and power densities were 1027.91 μWh cm–2 and 3002.42 μW cm–2, respectively, at a current density of 2 mA cm–2, and the capacitance retention ratio was 95.6% after 5000 cycles). Phytate-chelated Cu2+ ions undergoes redox competition with lignin, producing Cu+ ions with low electrostatic binding. These ions can then act synergistically with H+ ions to magnify the system’s charge storage capacity. Additionally, abundant hydrogen bonding and electrostatic interactions provide the PANI conductive layer with more charge adsorption sites whereas the uniform network structure provides optimal ion diffusion channels. Furthermore, the capacitor exhibits favorable capacitance output across various temperatures and humidity levels. Notably, the pigskin covered by this SC exhibits excellent flame-retardant properties when exposed to a butane flame, with a surface temperature of 34.8 °C. This work advances the practical application of hydrogel SCs for flexible energy storage.
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