JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Haonan Xue,Yuhao Shi,Fei Ge,Yu Gu,Jianchun Jiang,Minghao Zhou
The efficient hydrogenolysis of C-O ether bonds in lignin is critical for the production of bio-oils and high-value chemicals. In this paper, a series of boron-doped nickel-cobalt bimetallic catalysts with different metal ratios and calcination temperatures were synthesized by solvothermal and carbothermal reduction methods, to investigate the catalytic hydrogenolysis performance on lignin model compounds. Under the optimal reaction conditions (180 ℃, 2 MPaN 2 , and 2 h), it was observed that the conversion rate of benzyl phenyl ether (BPE) attained 100%, while the yields of toluene and cyclohexanol as the predominant products reached 49.5% and 47.6%, respectively. Moreover, the catalyst demonstrated notable stability and maintained substantial catalytic activity when the experiment was repeated for five times. It also exhibited a high degree of applicability to other lignin dimer model compounds and real lignin. The lignin and MOF-derived catalysts outlined in this study propose a novel approach for the effective utilization of biomass resources. The findings of this study can provide a valuable contribution to the improvement of lignin and its derivatives.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Hanwen Xin,Xinru Wang,Xing Wang,Xinke Li,Xujie Yang,Jinghui Zhou,Dayin Sun
Current antimicrobial agents face challenges in recyclability and solvent compatibility. To overcome these limitations, we engineered core–shell Fe3O4@SiO2@Lignin@Ag nanoparticles (FLA) and assembled them into magnetically responsive colloidosomes via emulsion templating. Structural analyses confirmed a controlled size evolution from the magnetic core to the composite colloidosomes. The colloidosomes achieved complete elimination of pathogenic bacteria (Escherichia coli and Staphylococcus aureus) within 24 h─exhibiting 5-fold higher efficiency than nonassembled nanoparticles─while maintaining structural integrity across polar and nonpolar solvents. Crucially, the system demonstrated high biocompatibility (>80% cell viability in mammalian cells), establishing a green platform for recyclable antimicrobial coatings in diverse industrial applications.
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Boyang Xu,Yahui Hou,Zhensheng Yang,Jing Fang,Xingjiang Wu,Junjie Qi,Hao Li
The management of deserts and saline-alkali sandy soils requires a large number of efficient and economical sand-fixing agent. However, the preparation of sand-fixing materials with excellent overall performance is still a great challenge. In this work, a sand-fixing agent with amphiphilic polyelectrolyte (ASL-PVA) was prepared by graft copolymerisation of sodium lignosulfonate (SL) with cationic (DMDAAC) and polyvinyl alcohol (PVA). The sand fixation of ASL-PVA was evaluated using typical saline-alkali sandy soils from the desert topsoil of Inner Mongolia, China. The anionic, cationic and benzene ring structure of ASL-PVA give it excellent water retention, adhesion and degradation resistance in saline-alkali sandy soils. The antipolyelectrolyte effect between ASL-PVA and soluble salt ions can improve its salt tolerance. Moreover, lignin as a precursor of humus makes ASL-PVA also has the properties of improving the physicochemical properties of saline-alkali sandy soils and promoting plant growth. The ASL-PVA sand-fixing agent demonstrates promising application potential in saline-alkali sandy soil improvement and desert restoration.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COLLOID AND POLYMER SCIENCE
·
2024
·
IF 2.2
Zhao Dan,Yang Weili,Shen Guanglite,Zhang Wenhui,Feng Huixia
Phenol–formaldehyde resin can be used to improve oil recovery; its key lies in its aggregation behavior and blocking strength. However, the traditional phenol–formaldehyde resin used in the petroleum field is all prepared by phenol and formaldehyde. In order to get rid of the dependence on fossil resources and make full use of renewable biomass resources, we used the abandoned walnut shells of the unique agricultural and forestry crops in Gansu province, which contains lignin partially replaced phenol to synthesize the new sulfonated lignin-based phenol–formaldehyde resin (SLPFR). The results showed that the optimum conditions for microwave polymers were polystyrene substitution rate of 20 wt%, decomposition temperature of 160 ℃, decommissioning time of 20 min, and sodium hydroxide concentration of 0.3 mol/L. Infrared spectroscopes and scanning telescopes have shown that after disintegration, there was an increased concentration of phosphorus, which had more active spots and was more suitable for replacing phenylphenol-synthetic formaldehyde resins. LC–MS indicated the molecular mass of SLPFR and the possible structure of molecules, indicating the successful synthesis of SLPFR. In this work, the aggregation behavior and dispersion stability of SLPFR were investigated from the composition of formation water. The effects of metal cations (Na + , Mg 2+ , Ca 2+ ) on the dispersion stability of SLPFR in formation water were determined by turbidimetry, and the effects of metal cations on the particle size and zeta potential of the SLPFR system were measured by dynamic light scattering method and electrophoretic light scattering method. The stability of the aggregate structure of the SLPFR system was calculated by combining the fractal dimension. In this paper, the surfactant + SLPFR system and partially hydrolyzed polyacrylamide (HPAM) + SLPFR system were designed for the specific conditions of oil reservoirs, and the effects of metal cations on the aggregation behavior and dispersion stability of these two systems were studied. Based on the above comprehensive analysis, aggregation models were constructed to describe the aggregation behavior and dispersion stability of the HPAM + surfactant + SLPFR system. This makes it possible to predict in real time the migration and plugging of SLPFR aggregates in formation water. Graphical abstract
✓ 已验证
产品关联
DOI
高影响因子
ACS Omega
·
2025
·
IF 4.3
Haowen Tang,Shujun Zhou,Xiaoli Gu
Catalytic pyrolysis is a promising method for lignin degradation under anaerobic conditions. In this article, the effect of synthesized Co-based catalysts supported on acid-modified attapulgite catalysts on lignin pyrolysis was analyzed by thermogravimetric analysis, and its reaction mechanism function about lignin pyrolysis was investigated. It was shown that the pyrolysis processes of lignin alone and lignin catalytic pyrolysis were divided into three stages (early pyrolysis–midway pyrolysis–end pyrolysis), and the maximum weight loss peaks all showed a tendency to shift toward the high temperature as the heating rate increased due to the heat transfer limitation. The lowest activation energy of lignin catalytic pyrolysis was 44.7 kJ/mol, which was significantly lower than the conventional activation energy of lignin pyrolysis, indicating specific catalytic interactions between the catalyst active sites and the key functional groups in lignin. The results indicated that the addition of a catalyst could effectively improve the reaction rate of lignin pyrolysis.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Xianghai Liao,Hanye Cai,Lei Wu,Dongming Qi,Kai Chen
Carbon nanofiber membranes (CNFMs) have broad application prospects in the field of oil–water separation due to their excellent stability, energy-saving properties, lack of secondary pollution, and high efficiency. However, the hydrophobicity, lipophilicity, and brittleness of carbon materials limit the application of CNFMs in oil–water separation. In this study, polyacrylonitrile (PAN), poly(lactic acid) (PLA), and lignin were used as raw materials for electrospun membranes. CNFMs were obtained by carbonizing the electrospun membranes, while PLA was thermally decomposed during heat treatment to form pores. The relationship between the pore structure and CNFM flexibility has been well discussed. When the ratio of micropores to mesopores approaches 1:1, Young’s modulus reaches 124.61 MPa after optimizing the heat treatment process. Lignin was introduced to improve the hydrophilicity of CNFMs due to its high hydrophilic group content. The contact angle test shows that CNFMs exhibited superhydrophilicity (water contact angle, WCA = 0) and excellent hydrophobicity (oil-in-water contact angle, OCA = 149.5°). The gravity-driven penetration test and total organic carbon (TOC) content analysis indicate that the separation efficiencies of the CNFMs for nonemulsified oil–water and emulsified water-in-oil mixtures were 99 and 97%, respectively. The TOC value of water separated by CNFM is 38.6 mg/L, which reaches the direct emission standards of the petrochemical industry in the integrated wastewater discharge standard (GB 8978-1996). This strategy has significance for designing simple, efficient, and green oil–water separation membranes.
✓ 已验证
产品关联
DOI
高影响因子
Small Methods
·
2025
·
IF 9.1
Xiaoli Zhou,Sitong Guo,Jialong Lv,Jiaqi Wu,Weiyue Liu,Yan Zeng,Chong Chen,Jilun Wei,Shouxin Liu,Yingxiang Zhai,Shujun Li,Chenhui Yang,Tony D. James,Zhijun Chen
Room temperature phosphorescence (RTP) fibers derived from natural sources exhibit great potential, but their large-scale preparation remains challenging. This work overcomes this major bottleneck by demonstrating the first successful large-scale manufacturing of bio-based, room temperature phosphorescent (RTP) fibers. By integrating lignin, an abundant biopolymer, directly into a commercial viscose fiber production line, we have developed a cost-effective process to produce high-performance phosphorescent viscose (PV) fibers at an industrial scale. The process employed key industrial parameters, including a coagulation bath temperature of 49°C, and a lignin incorporation rate of 1% (w/w) relative to cellulose, with continuous filament collection. These monolithic fibers exhibit a robust and long-lived green afterglow (lifetime of 217.5 ms) and exceptional mechanical strength (629.2 MPa), properties imparted by the unique Cellulose II matrix formed during the industrial co-regeneration process. Moreover, the wavelength of PV-fiber is tunable, ranging from 500 to 520 nm, by changing the excitation wavelength and using an energy transfer strategy. To prove their immediate viability, the PV-fibers are seamlessly processed into yarns and textiles using standard machinery, creating advanced multi-level anti-counterfeiting embroidery and luminescent surgical sutures. This breakthrough provides a direct and tangible pathway from renewable biomass to the mass production of advanced luminescent fabrics, paving the way for their integration into consumer and biomedical products.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Ying Yuan,Zhiqiang Tang,Zhihao Yang,Xiluan Wang
Functional hydrogel sensors have shown explosive growth in the health and medical fields. However, the uniform adhesion and the complicated polymerization process of hydrogels seriously hinder their further development. Herein, inspired by the layered structure of human skin, we prepare a Janus gel using in-situ polymerization. Based on the lignin-Fe 3+ dual catalytic system, the rapid polymerization of the gel was achieved at room temperature. By tailoring the mass ratio of lignin and Fe 3+ in the precursor, the adhesion of the upper and bottom layers can be easily adjusted. In addition, hydrophobic association is introduced into the upper layer to improve the gel's mechanical properties. The obtained asymmetric bilayer gel has a significant difference in adhesion (7 times), and exhibits excellent mechanical properties in the elongation at break (1437 %) and the breaking strength (463.2 kPa). Moreover, the bilayer gel also has good freezing and UV resistance. We use the bilayer gel as a wearable strain sensor, which shows a wide strain detection range of 0–800 % (maximum gauge factor = 5.3). The proposed simple strategy avoids UV irradiation and heating processes, which provides a new idea for the rapid polymerization of multifunctional Janus hydrogels with adjustable performances.
✓ 已验证
DOI
高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-17
·
IF 14.7
Zhao Yiquan,Xue Le,Huang Zhiyi,Lei Zixian,Xie Shiyu,Cai Zhenzhen,Rao Xinran,Zheng Ze,Xiao Ning,Zhang Xiaoyu,Ma Fuying,Yu Hongbo,Xie Shangxian
Exploring microorganisms with downstream synthetic advantages in lignin valorization is an effective strategy to increase target product diversity and yield. This study ingeniously engineers the non-lignin-degrading bacterium Ralstonia eutropha H16 (also known as Cupriavidus necator H16) to convert lignin, a typically underutilized by-product of biorefinery, into valuable bioplastic polyhydroxybutyrate (PHB). The aromatic metabolism capacities of R. eutropha H16 for different lignin-derived aromatics (LDAs) are systematically characterized and complemented by integrating robust functional modules including O- demethylation, aromatic aldehyde metabolism and the mitigation of by-product inhibition. A pivotal discovery is the regulatory element PcaQ, which is highly responsive to the aromatic hub metabolite protocatechuic acid during lignin degradation. Based on the computer-aided design of PcaQ, we develop a hub metabolite-based autoregulation (HMA) system. This system can control the functional genes expression in response to heterologous LDAs and enhance metabolism efficiency. Multi-module genome integration and directed evolution further fortify the strain’s stability and lignin conversion capacities, leading to PHB production titer of 2.38 g/L using heterologous LDAs as sole carbon source. This work not only marks a leap in bioplastic production from lignin components but also provides a strategy to redesign the non-LDAs-degrading microbes for efficient lignin valorization.
✓ 已验证
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2022
·
IF 8.025
Kai Chen,Shengrong Yuan,Jinze Li,Yan Zhang,Fengfeng Chen,Dongming Qi
The bacterial infection and its transmission pose a great threat to life and health, which leads to the urgent development of efficient and broad-spectrum antibacterial agents. Herein, Ag/lignin layered nanoflower (Ag/EHL-CM-0.05) was synthesized by using biomass lignin as reducing and capping agents and silver nitrate as precursor. The study showed that the size distribution of Ag NPs was uniform distribution and about 20–40 nm. The crystal surface of Ag NPs was Ag (111) surface. The minimum inhibitory concentration of Ag/EHL-CM-0.05 against E. coli and S. aureus was all 7.8 μg/mL, which was the lowest of other Ag/lignin antibacterial materials and reached a level nearly as polycationic antibacterial agents. The antibacterial mechanism suggested that Ag/EHL-CM-0.05 could release OH and Ag + , which could cause bacterial death. Finally, Ag/EHL-CM-0.05 was sprayed onto the viscose fabrics by liquid-phase spray deposition method. It was found that the inhibition zone diameter of modified viscose fabrics against E. coli and S. aureus only dropped about 0.16 cm on average after friction treatment and 0.32 cm on average after washing treatment. This work provides a new idea for the design and synthesize of efficient, broad-spectrum, and bio-compatible antibacterial agents, which has important social, economic, and environmental significance.
✓ 已验证
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Jinrong Liang,Kejia Wu,Fukun Li,Jinxing Long,Qiang Zeng,Xuehui Li
Catalytic hydrogenolysis of the renewable aromatic polymer of lignin to value-added fine chemicals without external molecular hydrogen is of great significance. In this work, catalytic conversion of lignin with in situ H 2 produced from the aqueous phase reforming (APR) of methanol is studied in the presence of ZnO-modified Pd/AC (Pd-Zn/AC). 259.8 mg g -1 yield of monophenols is obtained when the lignin depolymerization is catalyzed by Pd-Zn/AC-10 in a methanol aqueous solution ( V C H 3 OH / V H 2 O =9/1) at 250 °C for 4 h. Extensive analysis showed that this effective process should be attributed to the synergistic effect between Pd-Zn alloy and the metallic Pd, which promote the H 2 production from the APR of methanol and the hydrogenolysis of lignin, respectively. Moreover, a plausible pathway for selective hydrogenolysis of lignin is proposed based on the comparative characterization of the raw lignin, residual lignin, and the transformation behavior of lignin model compounds.
✓ 已验证
DOI
高影响因子
APPLIED ENERGY
·
2015
·
IF 5.613
Jinxing Long,Riyang Shu,Zhengqiu Yuan,Tiejun Wang,Ying Xu,Xinghua Zhang,Qi Zhang,Longlong Ma
Efficient conversion of lignin depolymerization products to more stable chemicals has attracted increasing attention during last few years. Here, we reported a novel and efficient method for lignin depolymerization products valorization on the simple and economic catalyst Ni x Mg 1 − x O. In which, the unsaturated ingredients were converted to thermal and chemical stable products, resulting in the obvious decreasing of the unsaturated degree of the products and the repolymerization of the phenolic oligomer. The results showed that more than 98% of phenol, a model chemical of lignin depolymerization products, could be converted to cyclohexanol with 100% selectivity. Further investigation demonstrated that it was also efficient for the real lignin depolymerization products, where a significant decrease on the oxygen content and the average molecular weight were shown. Moreover, the Ni x Mg 1 − x O catalyst was recyclable, and no significant loss of the catalytic activity was exhibited even after 5 runs.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）