ACS Applied Nano Materials
·
2026
·
IF 5.8
Cui Li,Wei Zhang,Yamin Wu,Lin Chen,Changliu He,Jiayu Xin,Siyu Wang,Xu Zhang
Electromagnetic wave absorption (EMA) materials have attracted considerable attention owing to their potential applications in electromagnetic stealth. Herein, lignin-derived N-doped carbon nanotube-based materials (Co–N–C/CNT–X) containing cobalt single atoms and nanoparticles were constructed to form a multiscale heterostructure with enhanced electromagnetic attenuation capability. The porous architecture and abundant defect sites in Co–N–C/CNT–E1 promote multiple reflection and dipole polarization, while cobalt species provide magnetic loss, thereby enhancing electromagnetic wave attenuation. As a result, Co–N–C/CNT–E1 exhibits a minimum reflection loss (RLmin) of −60.91 dB at a matching thickness of 2.80 mm and an effective absorption bandwidth (EAB) of 5.62 GHz at 2.30 mm. Radar cross-section (RCS) simulations further demonstrate the excellent electromagnetic stealth capability of Co–N–C/CNT–X.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Qiaozhang She,Zhendong Hu,Qixi Zheng,Fanghui Lei,Yuxin Wu
The limited compatibility between lignin and hydrophilic polysaccharide–polymer matrices restricts the development of high-performance bio-based packaging films. Here, we propose a green strategy that incorporates solvent-fractionated alkaline lignin (F-AL) into konjac glucomannan (KGM)/polyvinyl alcohol (PVA) films through citric acid (CA)-mediated ester crosslinking. Fractionation using acetone/water enriched phenolic hydroxyl groups and reduced molecular weight, thereby enhancing lignin reactivity toward CA and improving its dispersion in the PVA/KGM matrix. FTIR and SEM analyses confirmed the formation of a denser crosslinked network and markedly improved interfacial compatibility. As a result, the optimized PKFAL6 film exhibited high tensile strength (40.27 MPa), a 54.8% reduction in water vapor permeability, and a low swelling ratio (112.47%). The enriched phenolic structure of F-AL imparted strong antioxidant activity (up to 85.6% DPPH scavenging) and excellent UV-blocking ability (91.4% UVB; 58.9% UVA). Soil-burial tests revealed a two-stage degradation behavior, with slower early-stage mass loss due to antimicrobial effects and accelerated degradation after network cleavage. These results demonstrate that lignin fractionation is an effective strategy for creating sustainable films with enhanced soil degradation performance and improved functional properties for active packaging.
✓ 已验证
产品关联
DOI
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2026
·
IF 5.4
Changqi Chen,Gaojin Lyu,Guihua Yang,Zhen Wang,Yu Liu
Lignin exhibits inherent flame-retardant potential due to its high char yield and unique aromatic structure. However, its application has been limited by factors such as molecular weight heterogeneity and low chemical reactivity. In this research, phenolic modification of alkali lignin yielded highly uniform and reactive lignin nanoparticles, which were subsequently employed to fabricate flame-retardant gels. The phenolized nano-lignin was first reacted with polyethyleneimine (PEI) and ammonium polyphosphate (APP) to synthesize the APPL polymer. Subsequently, a dual-network structure (APPL-MHA) was formed via hydrogen bonding with multinuclear hydroxy aluminum (MHA). Finally, this composite was integrated with sodium alginate (SA) to fabricate an APPL-MHA@SA aerogel, which exhibits excellent flame-retardant properties. A stable hydrogen bond interaction is formed between the rigid network structure of multinuclear hydroxy aluminum and the uniformly dispersed lignin particles of nano-lignin. The incorporation of APPL-MHA significantly enhanced the mechanical strength and compressive modulus of the APPL-MHA@SA aerogels. Moreover, the synergistic effects of phosphorus and aluminum promoted carbonization during combustion, improving thermal stability, fire resistance, and smoke suppression. The limiting oxygen index (LOI) of the APPL-MHA@SA aerogels reached 35.5%, while conical calorimetry demonstrated a 50.8 kW·m −2 reduction in peak heat release rate, a 7.4 MJ·m −2 decrease in total heat release, and a total smoke production of 0.3 m 2 , significantly lower than the 1.0 m 2 observed for pristine SA aerogels. This study presents a novel approach for the high-value utilization of lignin, expanding the potential applications of aerogels in flame-retardant and smoke-suppression technologies.
✓ 已验证
DOI
高影响因子
LANGMUIR
·
2026
·
IF 4.4
Yuhao Wang,Junhao Dai,Banglong Shen,Hanfang Zhang,Lian Xu,Shengtao Gao
Zinc ion capacitors (ZICs) based on a carbon cathode represent new generation energy storage system, owing to outstanding safety, economic viability, and ecological sustainability. However, carbon-based cathodes suffer from limited charge storage. Thus, it is urgent to develop advanced carbon materials with a large available specific surface area and abundant active sites to boost the storage capacity of zinc ions. Herein, the lignin-assisted K2CO3 activation strategy is reported for constructing N/S co-doped hierarchical porous carbon frameworks (PCSs) using coal tar pitch as the primary carbon precursor. The pore-forming effect of K2CO3 coupled with the skeletal support of lignin promotes pyrolytic cross-linking of the precursor to form a porous nanosheet morphology. Meanwhile, N/S co-doping effectively modulates the electronic structure and produces additional active sites on the surface of PCSs. Besides, the reversible chemisorption/desorption of Zn2+ with O-containing groups occurring on PCSs has been monitored via in situ infrared spectroscopy, which provides additional pseudocapacitance. Consequently, the constructed ZICs with the PCS4 cathode can achieve a capacity of 125.31 mAh g-1 at 0.1 A g-1 and an energy density up to 96.43 Wh kg-1.
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 6
·125480
·
IF 7.5
Yaxin Wang,Xiaosong Zhang,Yue Huang,Chunping Li,Jiajia An,Daquan Zhang
Hierarchical porous carbon is derived from in situ Al-MOF growth on lignin nanofibers. • Integrated nanofiber networks and Al-containing interfaces promote fluoride electrosorption. • High capacity of 27.48 mg·g −1 and separation factor of 90.7% at 1.2 V. • Superior durability with 93.46% capacitance retention after 5000 cycles and 68.1% adsorption capacity after 20 regeneration cycles. Fluoride contamination has become an increasing environmental concern because of its adverse effects on aquatic ecosystems and human health. Capacitive deionization (CDI) offers an effective approach for fluoride removal; however, the development of electrode materials with efficient ion transport, stable interfacial structures, and high fluoride affinity remains challenging. Herein, a bio-derived Al-containing porous carbon electrode (AMCNF) is fabricated by in situ growth of Al-MOF on lignin nanofibers, followed by carbonization. The optimized AMCNF-4 electrode features an interconnected porous framework with uniformly distributed Al-containing sites, facilitating ion transport and providing abundant fluoride adsorption sites. AMCNF-4 achieves a fluoride electrosorption capacity of 27.48 mg·g −1 with 90.7% removal efficiency, reducing fluoride concentration from 10 to 0.97 mg·L −1 . Moreover, it retains 68.1% of its initial electrosorption capacity after 20 regeneration cycles, demonstrating acceptable cycling stability. The improved electrosorption performance is attributed to the synergistic effect of the lignin-derived porous carbon framework and exposed Al sites, which facilitate ion transport and fluoride adsorption through electrostatic attraction and coordination interactions. This work provides a sustainable strategy for designing MOF-derived bio-carbon hybrid electrodes with tailored interfacial chemistry for efficient capacitive defluorination. Download: Download high-res image (305KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
·
2026
·
IF 6.7
Longzhi Li,Tianyun Zhang,Yongqi Ren,Xin Qian,Xunchen Liu,Chunjian Su,Leyan Chu
A relay catalysis strategy driven by ultrasound-microwave excitation was proposed. • Pt/BT/ZnO ferroelectric heterojunction is applied to lignin depolymerization. • Hydrocarbon selectivity of 57.62% achieved via combined ultrasound-microwave excitation. • Cβ–O bond cleavage and deep hydrodeoxygenation pathway were elucidated. • Catalyst retained >50% hydrocarbon selectivity after five cycles. Lignin, as an abundant aromatic polymer, represents a promising renewable feedstock for producing high-quality liquid fuels. However, efficient cleavage of C–O bonds and subsequent hydrodeoxygenation (HDO) of phenolic intermediates into hydrocarbons remain significant challenges. Herein, a Pt-loaded ferroelectric heterojunction catalyst, Pt/BT/ZnO, was constructed and applied to lignin depolymerization. For the first time, a relay catalysis pathway driven by combined ultrasound-microwave excitation was developed. It was found that microwave-driven depolymerization alone suffered from insufficient exposure of active sites, resulting in inefficient conversion of phenolic intermediates. In contrast, the relay catalysis driven by ultrasound-microwave excitation promoted the deep HDO of phenols to hydrocarbons, with the hydrocarbon selectivity reaching 57.62%. Using 2-phenoxy-1-phenylethanol as a model compound, the selectivities of methylcyclohexane and cyclohexane after relay catalysis were enhanced to 36.48% and 18.45%, respectively. Combined with product analysis and DFT calculations, the mechanistic pathway was elucidated, revealing that the major route involves cleavage of the C β –O bond to form phenoxy radicals, followed by deep HDO to produce cycloalkanes. The synergistic effect of spontaneous polarization in Pt/BT/ZnO, ultrasonic cavitation, and microwave dielectric heating endowed the catalyst with excellent cycling stability, with hydrocarbon selectivity remaining above 50% after five runs. This work provides new insights into the application of ferroelectric heterojunction catalysts for lignin valorization and offers a novel route for producing aviation fuel components from renewable biomass. Download: Download high-res image (237KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Junjie He,Mingfei Chu,Jianqiang Pan,Lijuan Deng,Yiyao Wang,Wenjun Huang,Kehao Jiang,Fangli Sun,Yan Zhang
As an important thermosetting resin, epoxy resin can be impregnated into wood porous structures and cured upon heating to produce high-performance or functional wood composites. To obviate potential environmental hazards associated with volatile organic compound (VOC) emissions during processing, a waterborne epoxy resin (WEP) system containing lignin-based curing agent was designed in this work. The aminated lignin (AL) obtained via the Mannich reaction was well dispersed in the WEP matrix, forming stable waterborne epoxy emulsions. Following the curing reaction between WEP and AL, the resulting films exhibited good chemical stability, indicative of the formation of AL-WEP crosslinked network structures. Dimensionally stable and UV-resistant wood composites were achieved via the impregnation and in-situ curing reaction of AL-WEP emulsion. The anti-swelling efficiency of the wood composites reached 37.9%, and the flexural strength and modulus increased by 59.6% and 49%, respectively, relative to the unmodified wood sample. Furthermore, the wood composites demonstrated favorable UV blocking and resistance performance, attributable to the incorporation of lignin chains containing aromatic skeletons and phenolic hydroxyl groups into the epoxy network and wood structures. This work effectively integrated the respective merits of lignin and WEP into wood, thereby providing a new strategy for the preparation of wood composites with the ability to resist deformation and UV radiation.
✓ 已验证
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Zhaoxiang Liu,Guihua Yang,Haiying Wei,Shoujuan Wang,Zhongming Liu,Chenglong Fu,Shihao Su,Fangong Kong
Acid precipitation is a widely adopted method for lignin recovery from pulping black liquor, where the precipitation parameters determine the structural and physicochemical characteristics of the isolated lignin. Given the structural complexity and heterogeneity of lignin, the impact of acid type on its molecular structure and surface chemistry remains unclear. This study investigates how differences in protonation kinetics among various acids influence lignin particle morphology and their interfacial behavior in cellulose composite films. The results indicate that lignin precipitated using HCl forms spherical particles with size (190 ± 51.1 nm), good monodispersity (PDI = 0.072) and long-term aqueous stability. This is attributed to the strong acidity of HCl, which enables rapid H⁺ release and complete protonation of lignin molecules. Conversely, the weaker acidity of ethanoic acid (HAc) leads to a more gradual protonation, resulting in hierarchically structured particle aggregates with a broader size distribution (240 ± 111.6 nm, with many nanoparticles <50 nm). In addition, HCl-lignin and HAc-lignin composite films showed 38.4% and 39.3% increases in elongation at break over pure cellulose films, along with substantial UV-blocking efficiency enhancements of 540% and 745%.
✓ 已验证
产品关联
DOI
高影响因子
GREEN CHEMISTRY
·
2026
·
IF 10.6
Ruojin Shen,Chao Wang,Keqin Zhang,Changyi Zhu,Lupeng Shao,Kai Zhang,Xianhai Zeng,Feng Xu,Guihua Yang,Jiachuan Chen
The complete valorization of lignocellulosic biomass is pivotal to realizing the economic viability and environmental sustainability of next-generation biorefineries. Herein, we developed a sustainable and highly selective fractionation strategy for bamboo using a glyoxylic acid-mediated deep eutectic solvent (DES) composed of tetrabutylammonium bromide and glyoxylic acid monohydrate (TBAB-GA). Treatment with the DES at 130 °C efficiently removed 79.62% of lignin, yielding carboxyl-enriched lignin while retaining 84.33% of cellulose in the solid residue. Notably, the incorporation of 30 wt% water allowed the process to be conducted at a reduced temperature (110 °C) while further enhancing the delignification efficiency from 60.76% to 85.94%. Critically, the extracted lignin exhibited an exceptionally high content of β-O-4 linkages (34.51/100Ar; 77.46% retention), indicating minimal structural condensation. This well-preserved β-O-4 content directly enabled efficient catalytic hydrogenolysis, affording aromatic monomers in a high yield of 25.45%. Leveraging the intact biopolymers, we further fabricated uniform cellulose nanofibers (CNFs) and lignin nanoparticles (LNPs), which were subsequently incorporated into alginate-based composite gel beads. These beads demonstrated an excellent protein adsorption capacity (1283 mg g−1) and pronounced selectivity toward positively charged proteins, highlighting their potential for sustainable bioseparation technologies. This work establishes a mild, efficient, and fully integrated DES-based platform that enables the concurrent production of high-purity cellulose and structurally intact lignin from raw biomass, thereby advancing the paradigm of holistic lignocellulose valorization in alignment with green chemistry principles.
✓ 已验证
产品关联
DOI
高影响因子
ACS Catalysis
·
2026
·
IF 13.6
Lixia Li,Feiyue Li,Manman Cui,Lijie Liu,Xiang Zhen,Jiayuan Wei,Jiabao Cui,Jianxun Dong,Jinxing Long,Mingdong Dong,Xiaobing Wang
Reforming 3d-metal-based visible light catalytic platforms is desirable yet challenging for the selective cleavage of the C–C bond in lignin to value-added biochemicals. Herein, we provide a cost-effective iron-catalyzed photochemical strategy for the selective conversion of lignin to benzaldehyde under simulated natural conditions. Furthermore, the product distribution can be rationally regulated by changing the counteranion of Fe3+. With Fe(NO3)3·9H2O, a 100% conversion of diphenyl ethanol (lignin model) was achieved, affording a 186.0 mol % yield and 93.0% selectivity for benzaldehyde via the Cα–Cβ bond cleavage. By contrast, FeCl3·6H2O predominantly favored the Cα–OH oxidation to form diphenylethanone (72.4% selectivity). The results of the mechanistic study and density functional theory (DFT) calculation unveil that benzaldehyde formation proceeds via β-scission of an FeIII alkoxide intermediate through photodriven ligand-to-metal charge transfer (LMCT), wherein the nitrate counteranion serves as an internal oxidant in the iron nitrate catalytic system. Conversely, FeCl3 generates chlorine radicals via homolytic cleavage, resulting in the hydrogen atom abstraction at Cα–OH which consequently inhibits the breakage of the Cα–Cβ bond. Notably, the Fe(NO3)3 catalytic system also enables efficient C–C bond cleavage in realistic lignin (121.3 mg g–1 yield of monophenols), as evidenced by 2D HSQC NMR and FT-IR. Therefore, the findings in this work advance solar-driven lignin valorization and, more importantly, offer deep insights into the recently reemerging photochemistry of FeIII salts.
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Zhiqiang Zhao,Lanfeng Hui,Mingyue Zhao,Tingting Zhang,Dayong Ding
Lignin nanoparticles (LNPs) have attracted increasing attention as sustainable Pickering stabilizers owing to their amphiphilic structure, biocompatibility, and intrinsic antioxidant activity. In this study, LNPs with antioxidant and UV-shielding properties were prepared from bamboo lignin via a p -toluenesulfonic acid/hydrogen peroxide (TPHP) pretreatment and subsequently applied to stabilize oil-in-water (O/W) Pickering emulsions. To regulate particle interactions, NaCl was introduced to adjust the ionic strength. At low salt concentrations, partial screening of electrostatic repulsion promoted reversible association among LNPs, leading to the formation of a weak electrostatic network that enhanced interfacial anchoring and interfacial layer compactness. Under the conditions of 1.0 wt% LNPs and 100 mM NaCl, the emulsion displayed small and uniform droplet sizes, pronounced viscoelastic behavior, and excellent storage stability exceeding 60 days. Using curcumin as a model bioactive compound, the LNPs/NaCl-stabilized system demonstrated high curcumin retention together with improved thermal stability (85.09% retention at 60 °C) and strong UV resistance (88.96% after 72 h). These results highlight the role of the LNPs-mediated electrostatic network in enhancing emulsion stability and protecting sensitive bioactive compounds. This work provides new insights into the design of sustainable lignin-based Pickering emulsions for stabilizing and protecting functional ingredients. Download: Download high-res image (202KB) Download: Download full-size image
✓ 已验证
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Yaopeng Pu,Yuyu Wang,Fei Pan,Yulong Ma,Feng Lin,Wenxin Ji,Yuanyuan Li,Yonggang Sun
The escalating severity of global water scarcity and pollution necessitates the development of efficient and sustainable treatment technologies. Solar-driven interfacial evaporation presents an environmentally friendly, low-energy solution for both seawater desalination and wastewater treatment. In this study, we introduce a multifunctional integrated spherical evaporator composed of lignin-wrapped ZnFe 2 O 4 /chitosan‑carbon aerogel spheres (ZFO/CLCA), employing renewable chitosan as a three-dimensional flexible framework. By integrating ZnFe 2 O 4 , a visible-light-active semiconductor, with sodium lignosulfonate, known for its excellent photothermal conversion capabilities, we constructed a three-component organic hybrid featuring an in-situ formed hierarchical porous structure through a one-step carbonization process. The resulting ZFO/CLCA material demonstrates a high density of interconnected multiscale pores, a substantial specific surface area, and broad-spectrum absorption (93.48% across 250–2500 nm). Under simulated solar irradiation (1 kW m −2 ), this material exhibits an evaporation rate of 2.33 kg m −2 h −1 and a solar-to-steam conversion efficiency of 94.54%. The distinctive through-hole structure effectively prevents surface salt accumulation in high-salinity environments (3.5–20 wt% NaCl) via concentration-gradient-driven ion reverse diffusion, maintaining excellent long-term stability over 12 h of continuous operation. Importantly, during photothermal evaporation, the material concurrently catalyzes the degradation of organic pollutants, achieving an 87.10% degradation rate of tetracycline (100 mg L −1 ). In the context of real industrial wastewater treatment containing high salt concentrations and antibiotics, the evaporator produces clean effluent that complies with discharge standards. This study highlights a multifunctional spherical carbon aerogel evaporator that integrates efficient photothermal evaporation, salt resistance, and catalytic degradation, thereby, establishing a promising material platform for integrated solar-driven water treatment systems with both scientific significance and practical application potential.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）