ACS Applied Nano Materials
·
2026
·Vol. 9
·期 27
·13085-13097
·
IF 5.8
Xu Haotian,Sun Shichen,Xia Yuchao,Wang Chengyu,Liu Yanbo,Huan Siqi
Electrospun photocatalytic membranes have attracted significant
attention for wastewater treatment due to their high specific surface
area and structural tunability. However, the insufficient interfacial
stability between catalysts and substrates often leads to nanoparticle
detachment and performance deterioration during repeated use. In this
work, a sustainable Titanium dioxide (TiO 2 )/Kraft lignin
(KL)/polyacrylonitrile (PAN) composite nanofibrous membrane was fabricated
via an electrospinning-assisted in situ hydrothermal strategy. KL
serving as a green functional template, provides abundant anchoring
and nucleation sites, enabling the uniform growth of TiO 2 nanoparticles. The synergistic integration of KL and TiO 2 not only enhances the interfacial stability and mechanical strength
of the membrane but also broadens the light absorption range. The
optimized TiO 2 /KL/ P 4 ¯ membrane exhibited
a Rhodamine B removal efficiency of 90.5% within 2 h and a reaction
rate constant 2.8× higher than of TiO 2 /PAN. In addition,
the membrane maintained a removal efficiency above 81.8% after five
consecutive cycles, demonstrating excellent reusability and structural
stability. This work provides a sustainable strategy for the valorization
of lignin toward the design of high-performance and durable photocatalytic
materials for environmental remediation.
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BIOMASS & BIOENERGY
·
2026
·
IF 7
Wenjun Ying,Xudong Li,Sisi Wang,Junhua Zhang,Qiang Yong
Low-dose thiourea enhanced p -TsOH delignification of bamboo by 24.6%. • Thiourea increased total β- O -4 retention from 35.6% to 79.3%. • Thiourea improved the glucose yield from 71.4% to 87.5%. • Enzymatic hydrolysis residue was upgraded into S-doped HC and S/N-doped CQDs. Acid pretreatment improves cellulose accessibility and promotes lignin removal, but reactive benzylic intermediates often induce lignin condensation and redeposition, limiting enzymatic hydrolysis and lignin valorization. In this work, low-dosage thiourea was introduced into a p -toluenesulfonic acid ( p -TsOH) system to nucleophilically stabilize dissolved and residual lignin intermediates while introducing S/N functionalities. The addition of thiourea increased the lignin removal from 62.1% for PTB to 77.4% for PTSN1%B and the glucose yield from 71.4% to 87.5%, while increasing total β-O-4 retention of recovered lignin from 35.6% to 79.3%. After enzymatic hydrolysis, the lignin-rich residue was converted by one-pot hydrothermal treatment into hydrochar and carbon quantum dots. The introduction of S functionalities into hydrochar increased the maximum methylene blue adsorption capacity from 87.6 mg/g for HC-C to 115.1 mg/g for HC-SN while the incorporation of S/N functionalities into carbon quantum dots enhanced blue-green fluorescence intensity from 100000 to 400000 a. u. This work provides an integrated route for suppressing lignin condensation, improving carbohydrate conversion, and upgrading enzymatic hydrolysis residue into functional carbon materials in a bamboo biorefinery. Download: Download high-res image (411KB) Download: Download full-size image
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GREEN CHEMISTRY
·
2025
·
IF 9.2
Yichen Zhang,Daihong Gao,Denghao Ouyang,Binhang Yan,Xuebing Zhao
Lignin is a promising feedstock for the production of aromatic compounds and green energy. Here, using cobalt-based bifunctional electrocatalysts, we have developed a new coupled system for efficient transformation of lignin into electricity, aromatic aldehydes and H2. A facile approach for preparing nanoflower-like catalysts has been developed by using high current density electrodeposition of Co on Ni foam. The obtained electrode showed excellent performance in converting lignin to electricity in a direct lignin fuel cell (DLFC) and in the electro-oxidation of lignin to obtain aromatic aldehydes, as well as the hydrogen evolution reaction in an electrolytic cell. The peak power density of the DLFC reached 196.1 mW cm−2. By using the DLFC as a power supply for lignin depolymerization and the HER, the endogenous electrons of lignin could be well transferred to water, resulting in the formation of aromatic aldehydes and H2 without the input of external electricity. The total aromatic aldehyde yields at the anodes of the DLFC and the electrolytic cell were 2.90% and 3.34%, respectively, and the H2 production at the cathode of the electrolytic cell was 12.7 mL cm−2. This work can thus provide a novel system for lignin valorization and sustainable production of hydrogen.
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BIOMACROMOLECULES
·
2025
·
IF 5.4
Yilin Wang,Yufeng Yuan,Wei Liao,Zaikai Zhuang,Xueying An,Bo Jiang,Chaofeng Zhang,Sehrish Manan,Peng Wang,Yongcan Jin
Lignin, a complex biopolymer, has promising biomedical applications due to its unique structure and chemical modifiability. This study shows that lignin modified with hydroxyl and carboxyl groups enhances GSH adsorption, thereby improving cytotoxicity and selectivity against osteosarcoma. The modified lignin induces mitochondrial dysfunction via mPTP activation, resulting in membrane depolarization, cytochrome c release, and ATP depletion, ultimately triggering the pro-apoptotic protein BAX and downregulation of the antiapoptotic protein BCL2. Moreover, lignin treatment significantly increased reactive oxygen species (ROS) levels while depleting intracellular GSH, further promoting oxidative stress-induced apoptosis. In vivo studies confirmed that lignin samples were effective in inhibiting tumor growth with a favorable biosafety profile. Among them, CML showed the strongest anticancer effect. These findings highlight the potential of modified lignin as a safe and effective therapeutic agent for OS treatment, offering a novel strategy to enhance oxidative-stress-mediated tumor cell apoptosis while sparing normal cells.
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Bin Yu,Haonan Zhang,Zerui Li,Qiuyu Xiong,Donlai Zhang,Jingli Cheng,Jinhao Zhao
Lignin-based materials show great potential for sustainable pesticide delivery, yet improving foliar retention through electrostatic tuning remains challenging. Here, aminated alkali lignin (AAL) was synthesized via the Mannich reaction to prepare positively charged nanoparticles, which served as stabilizers for Pickering emulsions (PE) to encapsulate pesticide difenoconazole (Dif), achieving over 90 % encapsulation efficiency. Compared to unmodified lignin, the AAL-stabilized PE exhibited enhanced stability, prolonged release performance and improved anti-photolysis effects. Moreover, the introduction of positive charges through amination enabled the tuning the electrostatic interactions between the emulsion droplets and the negatively charged leaf surface. This precise control over electrostatic properties led to enhanced foliar adhesion and reduced pesticide loss. Among them, Pickering emulsions stabilized by triethylenetetramine-modified alkali lignin particles (AL-TETA PE) achieved the highest retention on strawberry leaves, approximately twice that of AL PE. Additionally, Dif@AL-TETA PE exhibited a threefold increase in in vitro fungicidal activity against Colletotrichum gloeosporioides compared to the Dif emulsifiable concentrate (Dif EC), along with improved control efficacy. This study, by tuning electrostatic interactions in amine-functionalized lignin-stabilized Pickering emulsions, provides a promising strategy to enhance foliar retention and improve plant protection, contributing to the development of eco-friendly and efficient pesticide delivery systems for sustainable agriculture.
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GREEN CHEMISTRY
·
2025
·
IF 9.2
Shi Liu,Conghui Mi,Yuxuan Qiu,Zhihan Tong,Jiajun Liu,Jinsong Sun,Xiaoxue Song,Qinqin Xia,Haipeng Yu
Sustainable optical filters with visibly opaque but near-infrared transparent (VONIRT) capabilities show great promise in optical detection and information security. However, optical filter production often relies on fossil-based materials and involves complex, environmentally harmful processes. Here, we present a simple, highly atom-efficient, in-situ polymerization strategy that confines industrial lignin into an esterification-polymerizable solvent to produce a fully bio-based VONIRT optical filter. In this process, lignin is mixed with a polymeric deep eutectic solvent (PDES) consisting of citric acid and 1.6-hexanediol. PDES performs a dual function: depolymerizing lignin by cleaving its ether bonds and simultaneously forming a crosslinked network of biopolyester through esterification. Lignin can form J-type structures due to its inherent π-π stacking while interacting with PDES through hydrogen bonding. Therefore, the biopolyester optical filter with a dense structure exhibits extreme ultraviolet-visible shielding (transmittance of ~0% at 400 nm and 600 nm) and high NIR transmittance (~80% at 1400 nm). In addition, it possesses excellent mechanical properties, with a tensile strength of 10.12 MPa and a work of fracture of 6.29 MJ/m3. The optical filter has demonstrated promising applications in NIR photography and information security. This simple, catalyst-free, highly atom-efficient approach is promising for producing a sustainable, high-performance bio-based optical filter.
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JOURNAL OF CATALYSIS
·
2024
·
IF 6.5
Rong Shang,Yulong Li,Junjing Guo,Bang Gu,Feng Qiu,Qinghu Tang,Qiue Cao,Wenhao Fang
The defect chemistry of doped-ceria is vital but tangled for sustainable conversion of biomass resources. In this work, a group of Zr-doped CeO 2 solid solutions were prepared and the defect chemistry in CeZr x O y (0.02 ≤ x ≤ 5) catalyst was elucidated over the oxidative coupling of lignin-based aniline and benzyl alcohol. Varying the Zr molar fraction enabled to successfully adjust the defect sites of catalysts and further influence their catalytic performances. In addition, the optimal CeZr 1 O y catalyst exhibited a flexible temperature adaptability, wide substrate scope and superior reusability. Various characterizations, kinetic investigations, controlled experiments, DFT calculations and in situ DRIFT-IR technique were used to unravel the roles of Ce 3+ and oxygen defects and the reaction mechanism. It was disclosed that Zr-doped defects can obviously increase surface Ce 3+ cations, oxygen species (peroxide and superoxide anions) and oxygen vacancies. These coordinatively unsaturated sites were shown to play critical roles in absorbing and activating substrates hence can accelerate the formation rate of bio-based imines.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.5
Shuting Dong,Pu Hou,Ruohan Cao,Yuchen Gao,Shuo Dai,Zhen Song
Bio-based hydrogels are regarded as promising materials for wearable skins and sensing devices in bionic hand control systems, mainly due to their favorable characteristics like flexibility, adjustable mechanical properties, and biocompatibility. In this work, a lignin-based multifunctional bilayer hydrogel using lignin, polyvinyl alcohol and liquid gallium was prepared. The hydrogel exhibits high tensile strength (310 kPa), stretchability (490%), and high electrical conductivity (1.92 S m −1 ), as well as self-healing, adhesion and degradability and recyclability. Notably, Gallium-based liquid metal was utilized as the conductive filler, which not only imparts high electrical conductivity to the material but also remarkably ameliorates its mechanical performance. The results indicated that the incorporation of liquid gallium enables more uniform dispersion of lignin aggregates, thereby enhancing the mechanical properties of the hydrogel. However, the incorporation of liquid metal gallium leads to a significant decrease in the adhesiveness of the hydrogel, and a double-layer hydrogel strategy was used to maintain the adhesion of the hydrogel in this study. Additionally, owing to the reactive characteristic of liquid metal crosslinks, the composites can be easily degraded and dissolved in water solutions under 85 °C, which allows the composites with liquid metal microdroplets to achieve a high recycling efficiency of 77%. Besides, a motion recognition system based on the hydrogel sensor is designed with the assistance of deep learning techniques to accurately identify human motion behaviors. This bio-based conductive hydrogel holds promising application prospects in the field of artificial flexible electronics.
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高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2026
·
IF 3.5
Jiayi Zheng,Xianlong Wang,Wenye Xue,Lei Zhong,Xuliang Lin,Fangbao Fu,Liheng Chen,Yanlin Qin,Xueqing Qiu
Lignin-derived porous carbon materials are promising electrode materials for supercapacitors owing to its tunable structure and excellent electrochemical properties. In this study, lignin (L EG and L PG ) was extracted using deep eutectic solvent (DES) and prepared into hierarchical porous carbon electrodes (CL EG and CL PG ) for supercapacitors. A systematic comparison of the structures and properties of both the lignins and the derived carbons was conducted. The results indicate that L EG , which has higher hydroxyl content, more abundant conjugated structure and β-O-4 linkage, was successfully converted into CL EG with an extremely high specific surface area (3096 m 2 ·g -1 ) and rich hierarchical porous structure under the synergistic effect of magnesium oxide as template agent and potassium acetate as chemical activator. Consequently, CL EG exhibits a high specific capacitance of 386.0 F·g -1 at 1 A·g -1 with excellent rate performance. The assembled symmetrical supercapacitor device achieved an energy density of 14.6 Wh·kg -1 at a power density of 250 W·kg -1 in 6 M KOH electrolyte solution, and maintained 88.3% capacitance after 12,000 cycles. This research provides a new strategy for designing high-performance carbon electrode materials from lignin.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·123692
·
IF 7.5
Yingying Fang,Yongkang Qiu,Yuyang Xi,Liang Si,Wei Wang,Weijun Peng,Yijun Cao
Lead (Pb) contamination in wastewater poses a persistent environmental challenge. Developing effective, sustainable adsorbents from renewable resources is a key goal of cleaner production. Herein, a bio‑based organic–inorganic composite hydrogel (I‑Hydrogel) was constructed using amino‑functionalized montmorillonite nanosheets (AMMT) combined with lignin (a renewable aromatic polymer), poly(vinyl alcohol) (PVA), and polyethyleneimine (PEI). In this design, AMMT provided inorganic adsorption-active sites, while the PVA/PEI network served as a three-dimensional scaffold to immobilize lignin and AMMT, generating a hierarchically porous framework enriched with nitrogen- and oxygen-containing functionalities. The optimized hydrogel exhibited a maximum Pb(II) adsorption capacity of 190.22 mg/g. The adsorption process was better described by the pseudo-second-order kinetic and Langmuir isotherm models and was thermodynamically favorable and endothermic within the investigated temperature range. Spectroscopic analyses indicated that Pb(II) uptake originated from a synergistic mechanism involving cation exchange at clay-associated sites and coordination interactions with amino, imine, hydroxyl, and other oxygen-containing groups in the hybrid network. This work demonstrates an effective strategy for integrating functional clay nanosheets with renewable bio‑based components into recoverable adsorbent platforms, offering a sustainable materials design approach that aligns with cleaner production principles for heavy‑metal removal from aqueous systems.
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Polymers
·
2026
·Vol. 18
·期 17
·2048
·
IF 5.8
Liping An,Zhigang Liu,Xinran Li
In this work, a formaldehyde-free bio-based wood adhesive was successfully fabricated using epoxidized soybean oil (ESO) cross-linked with maleic anhydride (MA) and carboxylated lignin sulfonate (CLS). The effect of CLS substitution dosage on the bonding performance was systematically investigated. The results indicated that the dry shear strength and wet shear strength of the adhesive exhibited a typical non-monotonic variation with increasing CLS content, reaching the maximum values of 1.79 MPa and 1.38 MPa, respectively, at a CLS substitution ratio of 40 mol% relative to MA. These mechanical properties fully meet and exceed the requirements of the Chinese national standard for wood adhesives. Orthogonal experiments were further conducted to optimize the hot-pressing process parameters and the optimal conditions were determined as follows: hot-pressing temperature of 130 °C, pressing time of 10 min, glue spread of 280 g/m2, and pre-mixing time of 70 min. FTIR, DSC, and TGA characterizations confirmed the complete curing reaction of the adhesive system. The introduced CLS served as both a reactive curing agent and an efficient catalytic component, which effectively reduced the curing temperature, while the incorporation of MA significantly improved the thermal stability of the cured adhesive. This study provides a feasible strategy for the preparation of high-performance, low-cost, and environmentally friendly bio-based wood adhesives.
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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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