JOURNAL OF APPLIED POLYMER SCIENCE
·
2021
·Vol. 139
·期 18
·52051
·
IF 3.125
Xinhui Gu,Juying Hou,Shiyun Ai
In recent years, the development of environment-friendly biodegradable and high-performing polymer composite for production has attracted much attention, motivated by the need to reduce the amount of microplastics accumulating in the environment. In this study, the poly (butylene adipate-co-terephthalate) (PBAT) and sodium lignosulphonate (SL) composite films with different loading of SL are synthesized. The PBAT/SL composite films show great UV-blocking capability and photostability. When the addition of SL reaches 10 wt%, the UV-B blocking of the composite films (P/L10) can reach about 100%. However, the tensile strength of P/L10 is about 32% less than that of neat PBAT. The silane modified nano-SiO 2 (m-SiO 2 ) , as a nano-filler, is well distributed into PBAT/SL composites, leading to improved tensile properties and the compatibility of PBAT with SL. The tensile strength of the P/L10/S2 (S2 denotes 2 wt% m-SiO 2 ) is about 55% more than that of P/L10 and 5% more than that of neat PABT. It can be observed from SEM that a suitable content of m-SiO 2 can improve the interfacial compatibility between PBAT and SL. This work provides innovative strategy for biodegradable PBAT/SL composites with remarkable UV-blocking ability and tensile strength.
✓ 已验证
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2026
·
IF 13.2
Wei Tan,Jieyun Zhao,Lei Tan,Yin Tian,Guixiang Song,Ying Chang,Lu Bai,Ping Li,Yuanlin Ren,Xiaohui Liu
The inherent flammability and insufficient ultraviolet (UV) protection of regenerated cellulose fibers limit their functional applications. Inspired by the natural polyphenol–polysaccharide synergy in plants, a lignin-derived boron-containing phenolic network (Lig-BPF) was incorporated into a cellulose spinning system and then coordinated with Zn 2+ to fabricate Cellulose/Lig-BPF@Zn fibers. Compared with pristine cellulose fibers, Cellulose/Lig-BPF@Zn increased the char residue at 800 °C from 13.72% to 30.35% under N 2 atmosphere, and reduced the peak heat release rate by 43.03%. The limiting oxygen index increased from 17.2% to 31.5%, and still remained 29.1% after 20 laundering cycles. TG-FTIR analysis showed an 88.56% reduction in total volatile release intensity, while Raman analysis confirmed an increased degree of graphitization, as evidenced by a decreased I D /I G value from 3.59 to 2.55. Furthermore, the UV protection factor increased from 11.42 to 128.82, and remained 109.74 after durability testing. Mechanistic analyses demonstrate that lignin-derived aromatic domains, boron-containing structures and Zn-coordinated species regulate cellulose pyrolysis and promote the char formation. This work develops a sustainable strategy for converting natural lignin into a bio-based flame retardant that simultaneously improves the flame retardancy and UV protection performance of regenerated cellulose fibers, providing a phosphorus-free and eco-friendly approach for preparing multifunctional carbohydrate-based fibers.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2026
·
IF 6.4
Yiming Liu,Yuping Zhu,Qiang Zhang,Lili Dong,Tingzhou Lei,Xiuqiang Zhang,Suxia Ren
L -CNF-reinforced hydrogel electrolyte achieves 336 mS cm −1 conductivity and 320% stretchability. • Flexible Zn-air battery delivers 50.5 mW cm −2 power density and 33 h cycling stability. • Integrated system enables on-demand drug release and wearable sensing, expanding biomass applications. Conductive hydrogels with high ionic conductivity, excellent mechanical properties and excellent water retention are still widely concerned in the field of flexible electronics. In this study, a low-cost, green and simple modification strategy was used to prepare a double-crosslinked alkaline hydrogel electrolyte composed of lignin-containing cellulose nanofibrils ( L -CNF), polyvinyl alcohol (PVA) and polyacrylamide (PAM) to improve the performance of flexible zinc-air batteries (FZABs). The mechanical properties of the hydrogel, ionic conductivity, and water retention capacity were optimized through varying the additive amounts of L -CNF. The findings indicate that the composite hydrogel electrolyte exhibits optimal performance at an L -CNF content of 0.15 g，exhibiting an ionic conductivity as high as 336.42 mS cm −1 , water retention of 52% after 10 days, and tensile strain of 320% under 70 kPa stress. The FZABs based on this hydrogel electrolyte achieved a peak power density of 50.5 mW cm −2 , demonstrated stable discharge for 689 min at 2.0 mA cm −2 , and displayed cycling stability over 33 h. The hydrogel electrolyte has excellent flexible sensing performance with a gauge factor of 3.10. In this work, green and low-cost biomass L -CNF is used as a functional modification filler, which provides a new design idea for the multifunctional integration of biomass resources in flexible energy devices.
✓ 已验证
产品关联
DOI
高影响因子
ChemSusChem
·
2026
·Vol. 19
·期 13
·e70866
·
IF 5.9
Guyu Xiao,Yile Li,Jiayue Lu,Wenli Zhang,Fangbao Fu,Qiyu Liu,Xueqing Qiu,Yuhe Liao
Lignin, the most abundant aromatic biopolymer in nature, holds great promise for carbon-neutral materials development yet is limited by its inherent dark color and poor solvent stability. Transforming it into uniform lignin colloidal spheres (LCSs) with ordered arrays enables specific visible light reflection and thus presents tunable colors. However, industrial lignin-derived LCSs via self-assembly typically exhibit broad size distribution and poor solvent resistance. To address these challenges, we proposed a novel strategy combining solvent fractionation and surface covalent polymerization. Acetone/water fractionation effectively reduced lignin heterogeneity, narrowing LCSs size distribution. Bisphenol A diglycidyl ether (BADGE) was used as cross-linker to covalently polymerize hydroxyl groups, inhibiting LCSs dissolution. Two hybrid LCSs were fabricated: hy-LCSs via co-self-assembly of lignin and BADGE and hy@LCSs through subsequent surface cross-linking. Hy-LCSs20 (20 wt% BADGE) shows stability in pH 12 alkali and acetone/water, while hy@LCSs70 exhibited unprecedented alkaline resistance up to pH 14, far exceeding the highest reported value of pH 12 for lignin colloidal spheres to date. Critically, BADGE incorporation preserved monodispersity of both hy-LCSs20 and hy@LCSs70, enabling precise size control without compromising uniformity. After centrifugation to form ordered structures, both hy-LCSs20 and hy@LCSs70 reflect specific wavelengths with tunable colors, overcoming key barriers in lignin valorization. Graphical This study developed a method to produce lignin-epoxy hybrid colloidal spheres via a co-self-assembly process between fractionated enzymatic hydrolysis lignin and BADGE. The formed hybrid lignin colloidal spheres performed narrow size distribution which can be used as photonic materials, together with an exceptional alkaline resistance (up to pH 14), overcoming key barriers in lignin valorization for sustainable materials.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2026
·Vol. 74
·期 30
·23451-23460
·
IF 6.7
Huang Yuetong,Zhang Xinyan,Liu Qiyu,Ma Qiaozhi,Qiu Xueqing
Efficient
fractionation of lignocellulosic components
is a prerequisite
for full-component utilization. Conventional methods rely on harsh
conditions, causing severe degradation of cellulose and hemicellulose
and lignin condensation, while milder conditions compromise fractionation
efficiency. To balance native structure preservation and fractionation
efficiency, a biphasic system composed of lithium bromide molten salt
hydrate (MSH) and n -butanol was developed. At 110
° C for 1 h, cellulose and hemicellulose were selectively hydrolyzed
into oligosaccharides in the MSH phase with yields of 81.4% and 88.1%,
respectively. The isolated lignin retained 96.1% of β-O-4 ether
bonds (38.5/100 C9 units), and its catalytic hydrogenolysis delivered
a monophenol yield of 82.1% to the theoretical value. The light-colored
lignin (Δ E = 31.28) achieved SPF 28.2 as a
sole sunscreen active ingredient, demonstrating commercial potential.
This biphasic system enables highly selective fractionation of lignocellulosic
components with limited condensation, yielding key feedstocks for
bioenergy and biorefinery, including oligosaccharides and native structure-preserved
lignin.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124557
·
IF 7.5
Qihang Ye,Zhaoping Zhong,Wei Wang,Yuxuan Yang,Renzhi Qi,You Jia,Huanqi Chen,Xiang Zheng
A “lignin-first” strategy was proposed employing an acidic DES for the preliminary separation of lignin. The DES, formulated with ZnCl₂, levulinic acid, and ethanol used as an additive (molar ratio of 1:1:2), was used to investigate the effects of pretreatment conditions on the efficiency of lignin separation from pine wood. The results demonstrated that both temperature and pretreatment time were critical factors determining lignin recovery efficiency, with 120 °C and 6 h identified as the optimal reaction conditions. The lignin recovery yield initially increased with higher proportion of DES, followed by a decrease upon further addition of DES. Excessive DES addition resulted in excessive fragmentation of lignin, thereby reducing recovery efficiency. A maximum lignin recovery ratio of 94.12% was achieved under the conditions of 120 °C, 6 h, and a solid-to-liquid ratio of 1:15. Characterization analysis revealed that the extracted lignin exhibited structural features similar to those of milled wood lignin (MWL), along with a relatively low molecular weight (1500–2500 g/mol) and a narrow dispersion coefficient (PDI < 2.0). Hydrolysis of the solid residue confirmed that DES pretreatment effectively enhanced cellulose conversion (increasing from 41.11% to 93.26%) and yielded 36.74% furfural. This study provides valuable insights for future biomass refining processes.
✓ 已验证
产品关联
DOI
高影响因子
Materials Science and Engineering B-Advanced Functional Solid-State Materials
·
2026
·
IF 5.7
Yining Wang,Bin Liu,Wansheng Zhang,Tong Qi,Lupeng Zhang,Yun Fa
A novel DETA/Formaldehyde-modified lignin adsorbent was developed, showing enhanced affinity for U(VI). • The adsorbent achieved a maximum U(VI) adsorption capacity of 315.58 mg·g −1 under optimized preparation conditions. • Aminated lignin has better uranium adsorption performance than pristine lignin, showing great potential for uranium recovery. This study investigated the uranium adsorption performance of a polyamine/aldehyde-modified alkali lignin system. Five polyamines with different structural characteristics, including 1,3-propanediamine, 1,4-butanediamine, diethylenetriamine (DETA), triethylenetetramine (TETA), and tetraethylenepentamine (TEPA), were employed as amination agents for lignin modification to evaluate the effects of polyamine incorporation on uranium adsorption capacity, adsorption rate, and selectivity. Experimental results showed that DETA/formaldehyde-modified lignin achieved a maximum U(VI) adsorption capacity of 315.58 mg·g −1 at pH 4.0 and 298.15 K, with an initial U(VI) concentration of 30 mg·L −1 and an adsorbent dosage of 33 mg·L −1 . Adsorption kinetic and thermodynamic analyses indicated that the adsorption process was a spontaneous, endothermic, and mon o layer chemisorption process. SEM, FTIR, and XPS characterizations demonstrated that the introduced amino groups significantly enhanced the affinity of the adsorbent toward U(VI). Compared with unmodified alkaline lignin, DETA/Formaldehyde-modified lignin exhibited a significantly enhanced uranium adsorption capacity.
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Yumeng Gao,Jingzhi Zhu,Jun Zhu,Guifeng Liu,Jian Chen,Wentao Bi,Chaoqun You,Can Jin
Demethylation elevates phenolic hydroxyl active sites by 188.6%. • Dual antioxidant pathways: radical scavenging and glutathione regeneration • The composite film shows an 86.04% reduction in O 2 permeability. • The composite film extends shelf life by 7 days and improves nutrient preservation. Effective food preservation is essential for reducing post-harvest losses and maintaining the quality of agricultural produce. To address shortcomings such as limited antibacterial activity, singular antioxidant mechanism, and insufficient oxygen barrier performance, this study presents a multifunctional composite preservation system (MSDE) based on demethylated lignin and porous silica. Demethylation increased phenolic hydroxyl active sites by 188.6%, exhibiting excellent antibacterial activity. MSDE exhibits inertness toward scavenging O 2 − , while demonstrating remarkable scavenging efficiency for H 2 O 2 and •OH. Notably, porous silica's electron-rich oxygen vacancies transfer electrons to demethylated lignin via covalent Si–O–C heterointerfaces, synergistically driving GSSG reduction to regenerate glutathione, indicating potential applicability in plant stress resistance. Through interfacial densification and gas adsorption, MSDE induced a localized “gas maze” effect, reducing oxygen permeability by 86.04%. The composite films loaded with MSDE effectively extended the preservation period of blueberries for 7 days while preserving key nutrients like vitamin C and anthocyanins, providing an innovative strategy for the design of multifunctional food preservation materials.
✓ 已验证
产品关联
DOI
高影响因子
RARE METALS
·
2026
·Vol. 45
·期 8
·e70513
·
IF 12.1
Xucai Wang,Yuxiang Fei,Zhenbo Yuan,Qiuyang Wang,Haojun Chen,Peng Wang,Weijun Wang,Wenbo Chen,Caoxing Huang
en This link goes to a English section zh This link goes to a Chinese section Infected bone defects represent a dual therapeutic challenge demanding concurrent infection inhibition and osteogenesis promotion. Systemic antibiotic administration is taken as a classical treatment protocol but often yields inadequate local antibiotic concentrations and delayed bone repair. Herein, we introduce a pioneering biomimetic composite hydrogel platform that exploits the bioactivity and structural versatility of lignin to deliver simultaneous enhanced antimicrobial and osteogenic capacity. This platform features self-assembled monodisperse vancomycin-loaded lignin nanoparticle (VCM@KLNPs), engineered via a solvent temporal self-assembly strategy. Integration of VCM@KLNPs into injectable polyvinyl alcohol/acrylamide interpenetrating hydrogel based on multiple strategies, via UV photo-crosslinking, CaCl 2 ionically-crosslinking, and NaOH/Freezing physical crosslinking, enabling promoted cellular adhesion and proliferation. The resulting composite gel exhibits 97.8% reduction of Staphylococcus aureus , while a 4.36-fold elevation in alkaline phosphatase activity, 4.89-fold mineralized nodule formation, and upregulated expression of osteogenesis-related markers ( p < 0.01). The dual in vivo therapeutic efficacy was further validated using infected skin wounds and critical-sized calvarial defect models. Histological analyses confirmed the emergence of robust trabecular bone with a marked reduction in bacterial burden. Our work develops a promising lignin-based micro-platform to overcome the barriers in managing infected bone defects, with great potential for clinical translation. 摘要 en This link goes to a English section zh This link goes to a Chinese section 感染性骨缺损具有抗感染与促成骨双重治疗诉求,是临床上的一大挑战。传统的系统性抗生素给药方案往往导致局部药物浓度不足且骨修复延迟。在此,我们构建了一种创新的仿生复合水凝胶平台,该平台利用木质素的生物活性和结构多样性,实现了抗菌与成骨能力的同步增强。该平台的核心特征在于通过反溶剂沉淀自组装策略制备均一分散的载万古霉素木质素纳米颗粒。通过紫外光交联、氯化钙离子交联以及氢氧化钠/冷冻物理交联等多重网络交联策略,并将VCM@KLNPs整合至可注射的聚乙烯醇/海藻酸钠/丙烯酰胺互穿网络水凝胶中,从而有效促进了细胞的粘附与增殖。实验结果表明,该复合凝胶使金黄色葡萄球菌减少了97.8%; 同时,碱性磷酸酶活性提升了4.36倍,矿化结节形成量增加了4.89倍,且成骨相关标记物的表达显著上调。通过大鼠皮肤感染模型和颅骨缺损模型,进一步验证了其体内双重治疗功效。组织学分析证实,在细菌负荷显著降低的同时,形成了结构致密的松质骨。本研究开发了一种极具前景的木质素基微平台,用以克服临床治疗感染性骨缺损的屏障,具有巨大的临床转化潜力。
✓ 已验证
产品关联
DOI
高影响因子
ENERGY
·
2026
·
IF 10.1
Yao Tong,Tianhua Yang,Jian Wang,Yingmei Zhai,Shuang Cui,Bingshuo Li,Xingping Kai,Rundong Li
Decoding the decisive role of CO 2 -mediated pyrolysis mechanism is essential for achieving directional biomass conversion and precise product regulation. This study strategically employs CO 2 as a dynamic reaction medium to drive fast pyrolysis of lignin, simultaneously producing phenol-enriched bio-oil and functionalized biochar. CO 2 's multifunctional mechanism during lignin pyrolysis was investigated through multimodal characterization combined with response surface methodology (RSM), principal component analysis (PCA) and t-distributed Stochastic Neighbor Embedding (t-SNE). Results demonstrate that CO 2 participates in radical reactions, catalyses the key demethoxylation step, and triggers the Boudouard reaction, simultaneously achieving enrichment of phenolic compounds in bio-oil (reaching 62.07% phenolic content under optimal conditions) and significant development of biochar pore structure (with specific surface area increasing up to 3.6-fold). Under conditions of 537 °C, 97 s, and 40% CO 2 , bio-oil yield reached 12.8 wt%, oxygen content decreased by 38%, and the yield of the high-value-added product 4-vinylphenol exceeded 18%. This study quantitatively revealed for the first time through PCA the non-linear regulatory effect of CO 2 concentration on pyrolysis reaction pathways, constructing a reaction network involving CO 2 . This provides theoretical basis and process references for directed pyrolysis of lignin and high-value utilisation of CO 2 . Furthermore, self-derived biochar was engineered into a bifunctional catalyst, further expanding the valorization strategy.
✓ 已验证
产品关联
DOI
高影响因子
ACS Catalysis
·
2026
·
IF 13.1
Jie Li,Pengpeng Shao,Peng Lei,Di Zhang,Chengpeng Liu,Shilu Chen,Yingnan Chi,Changwen Hu
Proton shuttles play a vital role in diverse chemical transformations; however, most known examples, such as water and small organic molecules, operate in homogeneous systems with colocated proton donor and acceptor sites. In contrast, recyclable proton shuttle catalysts with spatially separated donor and acceptor sites are highly desirable due to their enhanced flexibility in proton transfer but remain largely unexplored. Herein, we identify the polyoxoniobate K7HNb6O19·13H2O (KNb6) as a special type of recyclable proton shuttle catalyst that enables rapid cleavage of lignin β-O-4 ketone into value-added phenol (yield: 93%) and benzonitrile (yield: 73%) within 10 min, using NH2OH·H2O as the N-source. Combined computational and experimental studies reveal that the unique surface of KNb6, featuring a proton-donating hydroxyl group (−OH) surrounded by multiple proton-accepting oxo ligands (O2–), facilitates a proton-shuttling mechanism that drives both Cβ–O and Cα–Cβ bond cleavage of a ketoxime intermediate formed in situ. Moreover, KNb6 maintains a stable catalytic performance over multiple cycles and efficiently promotes the depolymerization of oxidized natural lignin. This work not only provides a robust and recyclable catalyst for biomass valorization but also offers insights into the design of recyclable proton transfer systems.
✓ 已验证
产品关联
DOI
高影响因子
RENEWABLE ENERGY
·
2026
·
IF 9.1
Quanxiong Lu,Xianliang Song
Direct lignin fuel cells (DLFC) have recently attracted much attention. However, there are few reports on preparing anodic catalytic layer for DLFC. Thereby, we loaded a small amount of platinum carbon (Pt/C) catalyst on the surface of nickel (Ni) foam by a simple roller pressing method, thus realizing the preparation of Pt-Ni/C bimetallic catalysts. The results proved the successful loading of the Pt/C catalyst onto nickel foam, and the catalyst particle size has an average size of 2.76 nm. The Pt-Ni/C catalysts not only have good oxygen evolution reaction (OER) activity (154 mV overpotential@10 mA/cm 2 and tafel-slope of 44 mV/dec) but also have good lignin oxidation reaction (LOR) activity with a low overpotential of 247 mV at 10 mA/cm 2 . Pt-Ni/C catalysts were applied to DLFC at room temperature, showing an open-circuit voltage (OCV) of 0.84 V and a maximum power density of 0.62 mW/cm 2 . The optimum Pt/C loading was found to be 0.5 mg/cm 2 . The modified DLFC is comparable to glucose fuel cells' power generation performance and shows better application prospects.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）