Journal of Bioresources and Bioproducts
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2026
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IF 13
Fengzhi Tan,Feifan Lu,Jiali Wei,Xing Wang,Jinghui Zhou,Jingyu Xu
The widespread deployment of renewable energy sources worldwide, such as wind power and photovoltaics, has created an urgent need for efficient energy storage systems. Biomass-derived carbon aerogels, due to their environmentally friendly and sustainable properties, have emerged as ideal precursor materials for advanced energy storage applications, particularly in supercapacitors. This study developed a method to prepare phytate-induced phosphorus/sulfur (P/S) co-doped magnesium lignosulfonate-based carbon aerogels (LCAs). Phytate induction facilitated the formation of regular spherical structures while simultaneously optimizing surface morphology and enabling efficient and uniform doping of P and S heteroatoms. The optimized sample, LCA-2-700, the lignin-based carbon aerogel that was prepared with the magnesium lignosulfonate (LS)꞉sodium alginate (SA)꞉phytic acid (PA) mass ratio of 5꞉5꞉2 and carbonized at 700 °C, exhibited a specific capacitance of 362 F/g at the current density of 0.5 A/g, with the assembled device achieving an energy density of 40.1 W·h/kg at a power density of 700 W/kg. After 20 000 cycles, the capacitance retention rate remained at 82.5%, demonstrating excellent electrochemical durability. The high performance was attributed to the synergistic effects of its spherical structure, high specific surface area, and P/S dual-heteroatom doping. This study provides an effective approach for synergistic structure-doping regulation of lignin-based carbon aerogels and provides a potential pathway for practical applications in high-performance supercapacitors.
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高影响因子
GREEN CHEMISTRY
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2026
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IF 10.6
Ruyin Ma,Yunfei Zhang,Jinghang Zhu,Daliang Guo,Jianbin Chen,Linxin Zhong,Chengliang Duan,Yinchao Xu,Jing Li,Huifang Zhao,Lizheng Sha
The commercial feasibility of proton exchange membrane fuel cells (PEMFC) is often hindered by the insufficient durability and high cost of carbon fiber paper (CP). Here, we report a sustainable strategy for modifying phenolic resin (PR) matrices using lignin-containing nanocellulose fibers (LCNF). High performance CP was prepared by taking advantage of the cross-linking reactivity of lignin through a simple impregnation carbonization process. The tensile strength of the optimized CP-LCNF30 has increased by 104.58%, the flexural strength has increased by 121%, and the corrosion resistance has been significantly improved. Crucially, the stratified pore structure guided by LCNF effectively balances material transport and water management. Under the anodic humidification condition of 85℃, the peak power density of PEMFC assembled with CP-LCNF30 was 0.55 W·cm-2. After 4000 thermal cycles, the attenuation of current density and power density was significantly lower than that of the unmodified sample (CP-LCNF0). This work offers a novel, biomass-derived approach to fabricating durable and cost-effective gas diffusion layers, advancing the practical deployment of PEMFC.
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Journal of the Taiwan Institute of Chemical Engineers
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2026
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IF 6.9
Wenjian Liu,Xiao Cheng,Yuchen Jiang,Mengjiao Fan,Shu Zhang,Shuang Wang,Xun Hu
Background The performance of activated carbon (AC) is dependent on its pore structure. However, activation processes involving agents like K 2 C 2 O 4 can lead to significant carbon loss and reduced yield due to vigorous cracking reactions. To address this, the present study employed impregnation of the biomass feedstock with a formic acid lignin solution prior to activation. This approach aims to leverage the protective function of lignin to suppress cracking, enhance product yield, and investigate its regulatory mechanism on the structure of the resulting AC. Methods The method involves impregnating the cellulose and peach wood feedstocks with a formic acid-lignin solution. Subsequently, the impregnated materials undergo chemical activation using either ZnCl 2 or K 2 C 2 O 4 as the activating agent. Significant findings The results showed that lignin impregnation prior to activation enhanced the mass yield of AC compared to direct activation without lignin (76.9% versus 71.4%), because lignin serves as a precursor for stabilizing carbon structure formation. AC from ZnCl 2 activation generally exhibited higher specific surface areas (1655 m 2 g –1 versus 1226 m 2 g –1 via K 2 C 2 O 4 activation), while K 2 C 2 O 4 promoted severe carbon cracking but favored the formation of heavy organics in bio-oil. However, lignin impregnation reduced the specific surface area, possibly due to the formation of a protective layer that hindered activating agent penetration and interaction with the feedstock components (1655 m 2 g –1 versus 1308 m 2 g –1 via ZnCl 2 activation of lignin-impregnated precursor). AC obtained through ZnCl 2 activation exhibited a favorable adsorption ability for tetracycline, and all prepared ACs demonstrated exceptional removal efficiency for basic fuchsin due to its well-developed porosity. In addition, impregnation with lignin introduced more oxygen-containing functional groups, such as -OH and C O, onto the AC, significantly enhancing its surface hydrophilicity. Overall, this study provides a practical strategy for tailoring the yield, pore structure, and surface properties of biomass-derived AC for targeted environmental remediation.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2026
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IF 3.9
Fang-Jing Liu,Meng-Jie Wang,Shan-Shan Gao,Lei Xia,Yao Lu,Mei Zhong,Xiao Zhou,Xian-Yong Wei,Yun-Peng Zhao
A promising strategy for lignin valorization is catalytic hydrogenolysis (CH) of C–O or C–C bridging bonds over supported metal catalysts to produce aromatics. Herein, a bimetallic RuNi/CeO2 catalyst was developed via impregnation and evaluated for CH of alkali lignin and its model compounds. Comprehensive catalyst characterizations confirmed the strong synergistic Ru–Ni nanoparticles, abundant oxygen vacancies (Ov), and moderate-to-strong acid sites on RuNi/CeO2. It achieved 100% conversion of benzyl phenyl ether (BPE) under mild conditions (100 °C and 1.5 MPa H2) with toluene and phenol as the main products, markedly outperforming monometallic counterparts. It also exhibited excellent performance for other α-O-4 and β-O-4 model compounds under moderate conditions of 180 °C and 0.5 MPa H2, affording aromatic monomers as the dominant products. Mechanistic studies indicated that RuNi/CeO2 cooperatively activates H2 and isopropanol to generate hydrogen radicals (H•) and protons (H+), facilitating selective cleavage of C–O bonds. Applied to alkali lignin, CH over the catalyst produced a 41.1 wt % lignin oil, with phenols constituting over 70% of the liquid products, underscoring its efficacy in real lignin conversion. This work provides an efficient and selective catalytic strategy for lignin valorization, contributing to the sustainable production of valuable aromatics in the biorefining industry.
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高影响因子
LANGMUIR
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2026
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IF 4.4
Zhihong Zhou,Yujie Cao,Zhiwei He
The fabrication of superhydrophobic sponges with multifunctionality is of great importance in various practical fields. Herein, a fluorine-free, durable, and photothermal superhydrophobic polyurethane (PU) sponge is obtained using a dual-layer design, consisting of acetylene black (AB) via the adhesion of epoxy resin and lignin microparticles (LMPs) via the adhesion of polydimethylsiloxane (PDMS). The introduction of AB and LMPs not only creates hierarchical surface roughness on the skeletons of the PU sponge but also acts as photothermal absorbers. The as-prepared superhydrophobic PU sponge possesses excellent chemical resistance, hydrothermal and photothermal stabilities, and mechanical durability. Due to surface superhydrophobicity and superoleophilicity, it exhibits high adsorption capacities up to 56.3 g/g for various oils and organic solvents, and shows high separation efficiencies up to 99.9%. Benefiting from an enhanced photothermal property caused by introducing AB and LMPs, the superhydrophobic PU sponge displays a maximum surface temperature of 75.8 °C under 1 sun irradiation. Consequently, it can rapidly adsorb a droplet of viscous crude oil (1 mL) within 70 s (1 sun), and achieve an ice-free property at −18.5 °C (0.5 sun). Furthermore, the superhydrophobic PU sponge can effectively separate water-in-oil (or oil-in-water) emulsions and adsorb five types of microplastics (PE, PP, PET, PS, and PVC) due to the rich functional surface groups. This work provides a dual-layer design for fabricating fluorine-free, durable, and photothermal superhydrophobic PU sponge, and opens a new avenue for preparing superhydrophobic sponges with multifunctionality for diverse practical applications.
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PubMed
高影响因子
JOURNAL OF CATALYSIS
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2026
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IF 6
Meng Liu,Jianhao Qiu,Guanglu Xia,Lu Zhang,Chen Chen,Qian Liu,Jianfeng Yao
Efficient and selective cleavage of C–C bonds in lignin remains a critical hurdle for its sustainable valorization into aromatic chemicals. Herein, we rationally construct a Z-scheme heterojunction photocatalyst by integrating phosphorus-doped graphitic carbon nitride (P-CN) with rod-like Bi 2 O 3 derived from a bismuth metal–organic framework (Bi-MOF). Phosphorus doping effectively modulates the band structure of g-C 3 N 4 , broadening visible-light absorption and enhancing its reduction capacity. Notably, Bi-MOF serves a dual function: it acts as the precursor for rod-like Bi 2 O 3 while simultaneously functioning as a pore-generating agent. Its decomposition during thermal treatment imparts substantial mesoporosity to the overlying g-C 3 N 4 nanosheets, dramatically increasing the specific surface area of the heterojunction. This mesoporous architecture and high surface area facilitate lignin diffusion and oxygen capture, thereby promoting the generation of carbon-centered radical intermediates and singlet oxygen—the key reactive species driving lignin C α –C β bond cleavage. Consequently, the optimized P-CN/Bi 2 O 3 catalyst achieves 97.5% conversion of the lignin model compound, 2-phenoxy-1-phenylethanol, and 94.3% benzaldehyde yield under 405 nm light irradiation, drastically outperforming pristine Bi 2 O 3 (31.4% conversion, 30.5% yield) and P-CN (55.8% conversion, 50.9% yield). This work highlights the untapped potential of MOF-derived materials in morphological engineering, offering new design principles for high-performance photocatalytic systems toward sustainable lignin valorization.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 19.7
Yicheng Cao,Xihong Zu,Zhangyuan Chen,Zixin Xie,Fantao Kong,Junkai Fang,Xueqing Qiu
High-entropy lattice distortion triggers strong charge redistribution. • Unusual Mo-C coordination creates highly electrophilic Mo 5.5+ centers. • This configuration enables ultrafast β-O-4 bond cleavage at low temperature. • Mediator-free lignin flow fuel cells deliver 545.48 mW cm −2 peak power. • Lignin oxidation efficiently replaces sluggish OER for green electricity. Low-temperature lignin flow fuel cells (LFFCs) offer sustainable green electricity generation but are hindered by the difficult degradation of lignin and sluggish electrode kinetics. Herein, a novel binder-free high-entropy metal-organic framework (HE-MOF) electrocatalyst containing five transition metals (Co, Ni, Cu, Mn, Mo) is grown on graphite felt (GF) via one-step solvothermal method to be efficient anodic catalyst for LFFC. The transition metal ions are uniformly and randomly distributed on the lattice sites of the HE-MOF, indicating the formation of single-phase solid solution without phase separation. Synchrotron XAFS spectroscopy reveals that high-entropy effect triggers severe local lattice distortions and profound electronic modulation, generating highly electrophilic Mo 5.5 + centers and intermediate Ni 1.8+ valence states alongside abundant oxygen vacancies. Thus, the HE-MOF electrocatalyst greatly enhances lignin adsorption and deep oxidation, and accelerates interfacial electron transfer. Consequently, the designed LFFC with only 1 cm² active membrane achieves a record-high maximum power density of 545.48 mW cm⁻² at 90 °C, and generates 506.5 mW h of electricity with 1.0 g lignin, simultaneously powering a 1.5 V LED pattern and two windmill devices with only 1 cm² active membrane. This study provides atomic-level design strategy for high-entropy electrocatalysts to promote the application of advanced LFFC and industrial lignin. Download: Download high-res image (168KB) Download: Download full-size image
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高影响因子
BIOMACROMOLECULES
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2025
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IF 5.4
Deqing Zhao,Jingpeng He,Yaling Zhao,Kaibin Ma,Yang Xu,Qinqin Xia,Xinglin Xiong,Xuan Tang,Qingyi Zhao,Rongge Wang
Maximizing the extraction and valorization of highly reactive lignin from lignocellulosic biomass is crucial for lignin-first biorefining. However, achieving high yield, superior purity, and structural preservation simultaneously is challenging. Herein, we developed a Lewis acid-catalyzed deep eutectic solvent (DES) system employing ferric chloride (FeCl3) coordinated with polyethylene glycol (PEG) to selectively extract structurally intact lignin. The engineered DES system exhibited outstanding performance, achieving a lignin yield of 32.9% with a purity of 96.2%. Structural analysis indicated that the extracted lignin retained 53.21 β-O-4 linkages per 100 aromatic units, closely approximating the native structure of cellulolytic enzyme lignin (CEL: 58.53 β-O-4/100 Ar). The identification of characteristic β′-O-4 linkages verified that PEG grafting at the Cα position effectively inhibited lignin condensation. Theoretical calculations further confirmed that FeCl3 enhanced the hydrogen-bonding capacity of the ternary DES with lignin, thereby aiding lignin dissociation and improving separation efficiency. This work provides valuable insights into upgrading lignin fractionation for lignin valorization.
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PubMed
高影响因子
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
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2025
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IF 2.5
Rong-Rong Zheng,Xiang Wu,Wen-Jia Huo,Bo-Yang Liang,Yao-Yao Bai
The conversion of lignin into high-value-added materials not only helps alleviate the energy crisis but also provides an efficient waste management solution. In this study, we present a simple extraction method of organosolv lignin from rice husks and demonstrate its application as a precursor for synthesising nitrogen and sulphur co-doped carbon quantum dots (N,S-LCQDs). The prepared N,S-LCQDs exhibited strong blue fluorescence with excellent photostability and were successfully employed as a selective fluorescent sensor for Fe3+ ions in aqueous solutions. Spectroscopic analysis revealed that the N,S-LCQDs displayed excitation-dependent emission behaviour with a quantum yield of approximately 9.7%. The fluorescence intensity of N,S-LCQDs decreased progressively with increasing Fe3+ concentration, exhibiting a good linear relationship over the range of 0–100 μM and a detection limit of 0.91 μM. The sensing mechanism was thoroughly investigated using Stern-Volmer analysis at different temperatures and fluorescence lifetime measurements. This work not only provides a sustainable approach for valorising rice husk biomass but also develops a cost-effective, sensitive, and selective fluorescent probe for Fe3+ detection in environmental and biological samples.
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高影响因子
JOURNAL OF CATALYSIS
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2025
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IF 6.5
Zhen Zhang,Quanxiao Dong,Yingqi Cui,Dan Wu,Armin Rezayan,Tianliang Lu,Renfeng Nie,Xiaoqin Si,Jianshe Wang,Chunbao Xu,Yongsheng Zhang
Catalytic oxidative depolymerization of lignin is an important strategy for producing valuable oxygen-functionalized monoaromatic compounds. However, this process is less efficient over heterogeneous catalysts due to the slow rate-determining step of selective oxidation of secondary alcohol (C α -OH to C α =O) in β-O-4 lignin linkages. Herein, a facile and efficient Ru(OH) x /C catalyst was developed for the oxidative depolymerization of lignin model compounds and real lignin in aqueous phase using molecular oxygen as oxidant. Extensive characterizations revealed that molecular oxygen abstracts electrons from the conductive carbon matrix to generate superoxide radicals (•O 2 – ), which are subsequently converted to hydroperoxide radicals (HOO•) in the presence of water. The C α -OH in the β-O-4 linkages first reacts with Ru-OH to form a Ru-O-C(H)- metal alkoxide intermediate, which then undergoes β-H elimination with the help of HOO• to generate H 2 O 2 and surface Ru-O-C•- species. Hydrolysis of Ru-O-C•- leads to the generation of C α =O products and the regeneration of Ru-OH sites. Different from the traditional Ru(OH) x -catalyzed alcohol dehydration mechanism in which Ru abstracts β-H to form Ru-H, in this case, the β-H in the Ru-alkoxide intermediate is eliminated by the hydroperoxide radicals rather than Ru, avoiding the formation of inert Ru-H species, thereby accelerating the dehydrogenation of C α -OH to C α =O. Electrochemical measurements further confirmed the charge transfer from Ru(OH) x to carbon during alcohol oxidation, demonstrating that electron donation by alcohol occurs on Ru(OH) x , while electron abstraction by O 2 occurs on the carbon. The free-radical-involved β-H elimination reaction pathway endows Ru(OH) x /C with superior catalytic oxidation activity in the aqueous phase compared with traditional metal oxides supported Ru(OH) x (e.g. SiO 2 , Al 2 O 3 , TiO 2 ), and provides a fundamental basis for the rational design of aqueous phase oxidation catalysts.
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高影响因子
GREEN CHEMISTRY
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2026
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IF 10.6
Danni Liu,Kaige Zhang,Wenli Zhao,Xiaopo Niu,Xiangwen Zhang,Qingfa Wang
To address the challenges of complex separation and high energy consumption in producing high-density biofuels from biomass, developing high-efficiency bifunctional catalyst to integrate carbon-carbon coupling and hydrodeoxygenation processes is highly desired. Herein, a bifunctional catalyst with RuOx anchored on the edge of NbOPO4 nanosheets was successfully fabricated through an impregnation-calcination method, enabling one-pot solvent-free conversion of lignin-derived phenol and benzyl alcohol into polycycloalkane perhydrofluorene. The NbOPO4 nanosheet edges were enriched in oxygen vacancies and were prone to anchoring RuOx species preferentially. The optimized 3%RuOx/NbOPO4 exhibited abundant Ru-O-Nb interfacial species, which synergized with Brønsted acid sites (BASs) to enhance the alkylation performance. The in-situ generated Ru0 species from the Ru-O-Nb interfacial species exhibited superior hydrogen dissociation capability, then the synergistic interaction with BASs through hydrogen spillover significantly boosted the hydrodeoxygenation efficiency. 3%RuOx/NbOPO4 with more Ru-O-Nb interfacial species exhibited high conversion of benzyl alcohol (98%) and yield towards perhydrofluorene (72%) under mild conditions (160 °C, 3 h) with a low environmental E-factor (≤2.8). Mechanistic studies identified the cyclization hydrogenation of oxygenated intermediates as the rate-determining step, and the product dicyclohexylmethane was mainly formed from the selective ring opening of perhydrofluorene over the synergy metal-acid sites of 3%RuOx/NbOPO4. This study provides a deep insight into designing efficient bifunctional catalysts for sustainable aviation fuel production through process integration.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2023
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IF 5.2
Lan Zhou,Maoliang Xie,Hang Su,RunLin Chen,Yuxia Pang,Hongming Lou,Dongjie Yang,Xueqing Qiu
Papermaking wastewater has large output and high chemical oxygen demand (COD), which seriously affects the water environment. As a by-product of papermaking industry, lignin is the main contaminant that causes excessive COD value. Bismuth oxide is a potential catalyst for photocatalytic degradation of lignin-contained wastewater because of its high charge conduction performance and light corrosion resistance . However, the high electron-hole recombination rate and poor surface chemical state of pure Bi 2 O 3 seriously hinder the degradation efficiency. Herein, we designed an O V -Bi 2 O 3 /BiOCOOH heterojunction with oxygen vacancies and heterojunction coexisting for photocatalytic degradation of lignin. Temperature induced the oxidation of ethylene glycol into formic acid , resulting in the epitaxial growth of Bi 2 O 3 and forming a Bi 2 O 3 /BiOCOOH heterojunction. The heterojunction presents a tight interface by sharing the Bi-O tetrahedron, and provides a highway for the charge transfer. Meanwhile, the oxidation of ethylene glycol induces oxygen vacancies (O V s) on Bi 2 O 3 /BiOCOOH surface, forming charge trapping centers to promote electron transport and surface reactions. The degradation efficiency of O V -Bi 2 O 3 /BiOCOOH is approximately 3 and 16 times that of Bi 2 O 3 and BiOCOOH, respectively. The improvement of photocatalytic performance can be attributed to the synergy of heterojunction and oxygen vacancy, and the stability is attributed to covalent bonds tightly connected.
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危险品化学品经营许可证（带存储）