FUEL
·
2025
·
IF 7.5
Renjie Yang,Genmao Guo,Pengfei Chen,Yang Yang,Fangming Jin
Cellulosic biomass, as the most abundant renewable resource on Earth, holds great potential for achieving carbon neutrality through efficient valorization, where its hydrolysis to glucose represents a critical initial step. Conventional methods relying on homogeneous acids face limitations such as poor catalyst recycling and significant environmental issues. Carbon-based solid acids (CSAs) for cellulose hydrolysis have emerged as promising alternative, yet, their synthesis often requires high-temperature calcination to construct stable aromatic frameworks, leading to complex and energy-intensive processes. In this study, we propose a novel approach of utilizing the inherent aromatic structure of lignite for synthesizing lignite-derived solid acids (LSAs). We found that lignite was successfully sulfonated directly at low temperature without prior calcination. The synthesized LSAs which possess abundant sulfonic and weak acid sites, proved rapid and efficient hydrolysis of cellulose, resulting in high glucose yield of 57.4 % in just 45 min at 190 °C. In situ Fourier-transform infrared (FTIR) analysis further revealed the weakening of hydrogen bonds and cleavage of glycosidic bonds in cellulose facilitated by LSAs. This work provides a sustainable and low-carbon way for the integrated valorization of lignite and cellulosic biomass.
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ACS Omega
·
2026
·Vol. 11
·期 29
·43397-43411
·
IF 5.2
Chen Chihao,Fu Chenyong,Liu Yifan,Chao Yidan,Cui Li,Li Yanyan,Zheng Haolong,Xue Jingdong,Li Zhe
Inspired by the natural synchronization of organic matrix
biosynthesis
and inorganic mineral deposition in coral reefs, this study introduces
a novel synchronous in situ biomineralization method. This strategy
aims to overcome the challenges of weak interfacial bonding and complex
processing in the fabrication of bacterial cellulose/calcium–phosphorus
composites (BC/Ca–P). Calcium gluconate was used as a dual-functional
precursor by substituting d -glucose in culture medium to
simultaneously supply a carbon source for BC biosynthesis and calcium
ions (Ca 2+ ) for mineralization at different substitution
ratios (10% for BC-CaG 10 and 100% for BC-CaG 100 ). We achieved concurrent biosynthesis of the BC matrix and deposition
of Ca–P phases, leading to a unique inorganic–organic
architecture in which Ca–P nanoparticles were uniformly anchored
within the BC nanofibrous network and strongly integrated by interfacial
interactions. Consequently, the moderate mineralization in BC-CaG 10 significantly enhanced the mechanical strength through a
synergistic reinforcement mechanism, reaching 12.03 MPa, representing
a 115% increase compared to that of pure BC. Conversely, the high
mineral content of BC-CaG 100 facilitated the formation
of a bioactive hydroxyapatite (HAP) phase, providing abundant active
sites. In preliminary biomedical evaluations, the fabricated composites
exhibited favorable biocompatibility. Notably, BC-CaG 100 exhibited efficient hemostatic performance in a rat tail amputation
model, reducing hemostasis time by 71% (to 142 s) and blood loss by
97% (to 15 mg). This study presents a facile, scalable, and green
approach for preparing novel biomimetic materials with promising potential
for biomedical applications, including tissue engineering and wound
management.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2026
·Vol. 37
·期 7
·e70670
·
IF 3.8
Shuqi Chen,Xue Yang,Tong Weng,Heyu Wang,Mengyao Qin,Rahman M. D. Mahbubur
Flexible piezoresistive sensors have broad application prospects in fields such as health monitoring and human-machine interaction. To address the challenges of traditional aerogel sensors, including weak mechanical properties, low sensitivity, and poor fatigue resistance, this study constructed a hierarchical biomass-based carbon aerogel (CNF/rGO/CS-B). The material was fabricated using cellulose nanofibers (CNF) as the matrix, graphene oxide (GO) as the precursor for the conductive component, and chitosan (CS) as a reinforcing component through bidirectional freezing, chemical cross-linking, and high-temperature carbonization. The effects of CS addition and freezing modes on the mechanical and sensing properties of the aerogels were systematically investigated. The results indicate that, owing to the synergistic effects of the ordered lamellar structure formed by bidirectional freezing and the stable cross-linked network constructed with the participation of CS, the aerogel exhibits excellent mechanical properties, including a compressive strength of 198.8 kPa at 60% strain and outstanding fatigue resistance, with 90% stress retention after 500 cycles at 40% strain. When used as a pressure sensor, it demonstrates high sensitivity (3.06 kPa −1 ) and excellent durability, with signal attenuation of less than 5% over 1500 compression cycles. The sensor can accurately monitor various human motions, such as finger bending and swallowing, providing a promising strategy for the development of high-performance wearable electronic devices.
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JOURNAL OF MOLECULAR STRUCTURE
·
2026
·
IF 4.9
Lei Xu,Wei Bi,Guorong Zhao,Yanfei Lin,Chuanli Ren,Lianpeng Zhang,Li Liu,Guanben Du
A new cellulose-based fluorescent probe for highly sensitive detection and adsorption of Cu 2+ was designed. • Fluorescence quenching occurred after binding to Cu 2+ through N Cu coordination with detection limit of 1.142 μM. • Combined with smartphone RGB imaging technology, the visual quantitative analysis of Cu 2+ in water was realized. • Fluorescent aerogel exhibits a maximum adsorption capacity of 83.264 mg/g for Cu 2+ . Developing new fluorescent probes for highly sensitive detection and adsorption of Cu 2+ has important research value and broad application prospects. In this work, based on microcrystalline cellulose (MCC), a cellulose-based naphthalimide fluorescent probe MNFP and a fluorescent aerogel MN-TCP were successfully constructed by amination modification and grafting of fluorescent molecules, which were used for the specific detection and efficient removal of Cu 2+ in water. MNFP showed yellow-green fluorescence in water, and fluorescence quenching occurred after binding to Cu 2+ through N Cu coordination. The detection limit was 1.142 μM, the response time was about 140 s, and the stability was good in the range of pH 5–10. Combined with smartphone RGB imaging technology, the visual quantitative analysis of Cu 2+ in water was realized. On this basis, a fluorescent aerogel MN-TCP with both detection and adsorption functions was constructed, which realized the specific recognition and efficient removal of Cu 2+ in water, and could be visually detected by color change and fluorescence dual signals. The material integrates high selective detection, high removal rate and visualization functions, and provides a green and efficient new solution for simultaneous monitoring and treatment of Cu 2+ in water. Download: Download high-res image (281KB) Download: Download full-size image
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INORGANIC CHEMISTRY COMMUNICATIONS
·
2026
·
IF 5.9
Muneerah Alomar,Lamia Abu El Maati,Muhammad Sultan Irshad,Naila Arshad,Afraa Alotaibi,Van-Duong Dao
The fabrication of sustainable solar-powered interfacial evaporators is essential for addressing global water scarcity challenges. Herein, we propose a new photothermal evaporator by applying a zirconium carbide-polypyrrole (ZrC-PPy) composite coating to a cellulose filter (CF) possessing enhanced photothermal conversion. The 3D photothermal evaporator is constructed by integrating a ZrC-PPy@CF evaporator onto triangular polyurethane (PU) foam. With a poor thermal conductivity of 0.078 W m −2 K −1 , the synthesized evaporator allowed effective heat localization under light. The evaporator produced an evaporation rate of 1.92 kg m −2 h −1 with a corresponding photothermal conversion efficiency of 89%. Additionally, the evaporator achieved over 99.9% rejection of common metal ions (Na + , K + , Ca 2+ , Mg 2+ ) from saline water, yielding high-quality freshwater. These findings highlight the ZrC-PPy@CF evaporator as a scalable and versatile platform for efficient wastewater treatment and desalination.
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CELLULOSE
·
2026
·
IF 4.6
Chen Jinghuan,Liu Junjun,Yang Kaiji,Peng Xuanhua,Deng Wangfang,Tarasov Dmitry,Gustafsson Jan,Hu Liqiu,Xu Jiayun,Zhang Hao,Sun Shaofei,Tian Chao,Sun Bo,Xu Chunlin
Microfibrillated cellulose (MFC) has attracted increasing attention as a sustainable reinforcement for polymer composites. However, when incorporated into hydrophobic thermoplastics such as acrylonitrile–butadiene–styrene (ABS), MFC often improves tensile strength but significantly reduces elongation at break. To address this challenge, we designed a surface modification strategy for MFC. Leaf bleached kraft pulp (LBKP) was first carboxyethylated and mechanically fibrillated to produce carboxyethylated MFC (C-MFC), which was subsequently amidated with octadecylamine (ODA) to obtain hydrophobized octadecylamine-modified carboxyethyl MFC (OC-MFC). Composite films of OC-MFC/ABS were fabricated by solution casting followed by hot pressing. The structures and properties of MFC, C-MFC, OC-MFC, and OC-MFC/ABS composites were systematically characterized using laser particle size analysis, FTIR, dynamic water contact angle, tensile testing, thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). The results demonstrated that ODA modification effectively increased the hydrophobicity of MFC, leading to improved dispersion and interfacial compatibility with the ABS matrix. Mechanical testing revealed that the incorporation of 0.5–1 wt% OC-MFC into ABS composite films preserved the tensile strength, while significantly enhancing. Morphological observations further supported the toughening effect of OC-MFC. These findings highlight a practical strategy for toughening ABS through the incorporation of surface-modified MFC, providing insights into the design of high-performance bio-based thermoplastic composites. Graphical
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CHEMISTRY OF MATERIALS
·
2026
·
IF 7.1
Qiushi Tian,Jiawei Nie,Kaiwen Chen,Tianyi Zhan,Yin Liu,Yidi Li,Jingjiang Wei,Jinyong Zhang,Fan Zhang,Hao Xie,Weimin Wang,Hao Wang,Hang Ping,Zhengyi Fu
Natural wood is a sustainable material, but its engineering applications are often limited by flammability, biodegradation, and anisotropic mechanical behavior. Inspired from biomineralization─an inorganic/organic hybrid strategy found in nature, we develop an in situ mineralization approach to fabricate high-performance strontium carbonate (SrCO3) mineralized wood. SrCO3 precursors initially nucleate on the cellulose matrix and subsequently expand to fully mineralize the cell wall, a process during which the cellulose matrix induces a preferred orientation of the nanocrystals. Specifically, these nanocrystals become embedded within the cellulose matrix of the cell walls while preserving the intact lumen architecture, thereby achieving a high mineral content of 70 wt %. Furthermore, megapascal-level contractile stress is generated along the c-axis of cellulose crystallites during mineralization, resulting in a distinct expansion of the cellulose (200) plane spacing. This prestressed mineralized wood exhibits a tensile strength of 23.1 MPa, significantly higher than its annealed counterpart (11.3 MPa); concurrently, the mineralized wood composite achieves a flexural strength of 140.4 MPa, surpassing that of natural wood by 18-fold. Moreover, the mineralized wood demonstrates superior flame retardancy and resistance to fungal decay. This study elucidates the strengthening mechanism conferred by mineralization-induced contractile stress and presents a scalable pathway for fabricating robust artificial composites.
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Journal of Energy Storage
·
2026
·
IF 10.7
Zewen Ding,Yunqi Ma,Menglong Guo,Xiaozhong Wu,Pengfei Zhou,Fangyong Yu,Jin Zhou
This study presents a Fenton treatment strategy for cellulose to prepare porous carbon by regulating the physicochemical properties of the carbon source, thereby enhancing the activation efficiency of potassium acetate (CH 3 COOK). Fenton treatment cleaves ether bonds in cellulose, yielding smaller particles with increased interfacial exposure and surface hydroxyl groups, which promote subsequent etching and pore formation during CH 3 COOK activation. This process results in a more graphite-like microcrystalline structure with improved electrical conductivity. Consequently, the specific surface area of the resulting PC-Fenton increases from 1115 to 1478 m 2 g −1 , accompanied by a notable rise in larger micropores, which facilitate electrolyte ion transport. The specific capacitance increases from 254 to 288 F g −1 in KOH and from 280 to 313.5 F g −1 in H 2 SO 4 . Furthermore, the electrode retains 95.8% of its initial capacitance after 20,000 cycles, far exceeding the 61.2% retention of directly carbonized carbon. This work offers a promising route for advanced carbon-based materials in energy storage applications.
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BIORESOURCE TECHNOLOGY
·
2026
·
IF 8.2
Mingjia Feng,Yunhai Ma,Yuqi Zhuansun
A smart biodegradable mulch film with UV shielding and soil pH sensing was built. • The mulch film has excellent UV barrier properties with a transmittance below 1 %. • The biodegradable mulch film enhances soil moisture and temperature regulation. • The film showed clear color changes across pH 2–13 and in soils of varying pH. • The mulch film biodegraded in soil, losing 56.6 % mass in 50 days. • The film promoted pak choi growth, outperforming LDPE mulch in pots. Current biodegradable mulching films often have insufficient mechanical strength, weak UV protection, and no capacity for soil pH monitoring. We developed a degradable and recyclable multifunctional agricultural film (PSC/An) from polyvinyl alcohol (PVA), sodium lignosulfonate (SL), corn husk-derived cellulose nanocrystals (CNCs), and blueberry anthocyanins (An). The film was fabricated by simple solution casting and integrates mechanical reinforcement, UV shielding, and visual soil-pH sensing. PSC/An showed a tensile strength of 53.6 MPa and UV transmittance below 1 %, indicating effective UV blocking. It also displayed clear color changes over pH 2–13 and in soils with different pH values, enabling direct visual identification of soil acidity/alkalinity. After three dissolution–regeneration cycles, the film retained its mechanical properties, pH responsiveness, and UV-shielding ability. It reached 56.6 % degradation after 50 days of soil burial. In pak choi pots, film mulching increased seed germination to 96.7 % and produced greater plant height, root length, and biomass than the unmulched control and commercial LDPE mulch. This multifunctional film offers a practical design strategy for environmentally friendly, intelligent mulching materials for sustainable agriculture. Download: Download high-res image (116KB) Download: Download full-size image
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2026
·Vol. 14
·期 30
·13503-13516
·
IF 7.6
Xu Jingjing,Yu Jia,Wang Hong,Zhang Zhikun,Wang Yuxing,Lai Chenhuan,Xu Ben Bin,Xie Yitong,Zhang Daihui,Chu Fuxiang
Lignin-containing cellulose nanofibers (LCNFs) offer a sustainable alternative to fully delignified nanocellulose by preserving native lignin while reducing chemical and energy consumption. Herein, bamboo-derived LCNFs were prepared through a one-step maleic anhydride esterification without toxic solvents or catalysts. The resulting LCNFs exhibit high lignin content (27.14%), abundant surface carboxyl groups (1.85 mmol g −1 ), ultrafine diameters (∼2.67 nm), and high aspect ratios (>1 μm), enabling excellent dispersion and strong interfacial interactions with polymer networks. When incorporated into poly(acrylamide-co-lauryl methacrylate) hydrogels, the LCNFs function as dual-functional crosslinkers by simultaneously providing covalent anchoring sites and physical entanglement points. The synergistic interactions significantly enhance the mechanical robustness and electrical performance of the hydrogels, yielding a tensile strength of 1.12 MPa, elongation at break of 1545%, toughness of 7.33 MJ·m −3 , and electrical conductivity of 1.15 S/m. Multiscale analyses reveal that the reinforcement originates from cooperative hydrogen bonding, covalent coupling, and nanoscale network interpenetration induced by LCNFs. This work demonstrates a green and efficient strategy for converting bamboo biomass into functional LCNFs and highlights their potential as sustainable reinforcing and crosslinking components in high-performance conductive hydrogels for flexible sensing and wearable applications.
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Biotechnology for Biofuels and Bioproducts
·
2026
·
IF 4.6
Xinran Yu,Su Ma,Xiuyun Wu,Lushan Wang
Background: Efficient degradation of cellulose is a key bottleneck in the industrialization of biofuels. While fungi achieve substrate conversion through precise regulation of cellulase systems, the systematic mechanisms underlying efficient degradation (encompassing gene transcription, extracellular protein cooperation, and product metabolism) remain unclear in specific fungi, especially thermophilic fungi critical for industrial production. Results: (1) C. thermophilum did not induce cellulases under cellobiose, while microcrystalline cellulose (MCC) strongly activated degradation. CtClr-2 acts as a core transcription factor, directly driving the co-expression of key genes including LPMOs, CDH, and CBH; its deletion reduces MCC degradation efficiency by 30%. (2) Enzyme secretion may follow a three-stage cascade pattern (CBH1-A → LPMOs/CDH-1 → CBH1/2-B), where the selective secretion and temporal synergy of oxidases and hydrolase increase the reducing sugar yield by 60.6%. (3) The sugar acid metabolic network may enable efficient utilization of degradation products and potentially help maintain extracellular pH. Conclusions: This study reveals the efficient "transcriptional regulation-enzyme secretion adaptation" synergistic mechanism in C. thermophilum. CtClr-2 coordinates key genes, and staged enzyme secretion optimizes synergy, while sugar acid metabolism ensures homeostasis. These insights advance thermophilic cellulolysis understanding and provide targets for engineering industrial strains through synthetic biology (for example, enhancing enzyme yield and optimizing degradation efficiency), aiding cost reduction in biofuel production.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Danzhong Sun,Jiang Liu,Weixiao Feng,Nitong Bu,Yunhui Wen,Shuyi Sun,Yang Yang,Chen Zhang,Zhen Zhang,Shaowei Shi
Phase-change materials (PCMs) possess great potential for latent heat storage and thermal regulation, yet their practical application is often hindered by leakage during phase transitions. Here, we report an efficient strategy for PCM encapsulation based on the co-assembly of cellulose nanocrystals and oil-soluble dimethyl distearylammonium chloride, which stabilizes the water-paraffin wax (PW) interface. Cellulose nanocrystal surfactants (CNCSs) are formed in situ at the interface, where their high interfacial activity and jammed multilayer structure enable the preparation of stable PW-in-water emulsions. Freeze-drying of these emulsions yield PCM microcapsules with robust CNCS shells that can effectively prevent leakage during heating. Polymerization of the emulsion continuous phase produces phase change hydrogels with uniformly distributed PCM microcapsules, exhibiting excellent thermal insulation, heat-regulation, and thermal-protective properties.
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