JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
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2021
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IF 3.995
Jianhua Zhou,Hong Li,Yannan Li,Xiang Li
Cellulose nanocrystals (CNCs) were modified using an amphiphilic triblock copolymer [poly(2-(dimethylamino) ethyl methacrylate)- b -poly(glycidyl methacrylate)- b -poly(2,2,3,4,4,4-hexafluorobutyl acrylate) (PDMAEMA- b -PGMA- b -PHFBA)] bearing epoxy functionalities located in middle segment of PGMA, which were used to react with the hydroxyl groups on the surface of the CNCs. The triblock copolymer was synthesized via a reversible addition fragmentation chain transfer (RAFT) polymerization reaction between 2-(dimethylamino) ethyl methacrylate, glycidyl methacrylate and 2,2,3,4,4,4-hexafluorobutyl acrylate, and characterized using 1 H-NMR spectroscopy and size exclusion chromatography (SEC). The successful modification of the CNCs was demonstrated by means of FT-IR, TGA , TEM , XRD and XPS . In addition, the surface properties of the modified CNCs were studied using water contact angle and surface tension studies. When compared with the pristine CNCs, the modified CNCs exhibited a higher contact angle and lower surface tension. Good dispersion of the modified CNCs was observed in different polar solvents, such as water, THF, DMF , CHCl 3 and toluene. The modified CNCs exhibited pH responsive properties, which were measured using dynamic light scattering (DLS). In addition, the stability of Pickering emulsions stabilized by PDMAEMA- g -CNC- g -PHFBA decreased with time or increasing pH. The droplet size increased gradually upon increasing the pH. This work provides a method to design sophisticated CNC-based materials, which benefit from both the intrinsic properties of the CNCs and the new characteristics conferred by the multifunctional grafted chains.
研究领域:
高分子化学
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纳米材料科学
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胶体与界面化学
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生物基功能材料
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智能响应材料
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高影响因子
ACS Sustainable Chemistry & Engineering
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2018
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IF 6.14
Sheng Chen,Yijia Song,Feng Xu
Wood-derived sustainable materials like cellulose fibers have received increased attention for replacing nonrenewable substrates in emerging high-tech applications. Herein, for the first time, we fabricated a superhydrophobic (static contact angle = 159.6°, sliding angle = 5.8°), highly transparent (90.2%) and hazy (46.5%) nanopaper made of TEMPO-oxidized cellulose nanofibrils (TOCNF) and polysiloxanes. The original TOCNF nanopaper endowed excellent optical and mechanical properties; the constructed pearl-necklace-like polysiloxanes fibers on the nanopaper surface by further silanization significantly improved water-repellency (70.7% for static contact angle) and toughness (118.7%) of the TOCNF nanopaper. Our proposed novel nanopaper that simultaneously achieved light-management and self-cleaning capabilities not only led to an enhancement (10.43%) in the overall energy conversion efficiency of the solar cell by simply coating but also recovered most of the photovoltaic performance losses due to dust accumulation by a self-cleaning process, indicating its potential application in solar cells. This study on cellulose-based multifunctional substrates provided new insights into the future development of sustainable functional devices.
研究领域:
材料科学
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纳米技术
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可再生能源
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表面化学
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可持续工程
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ACS Applied Materials & Interfaces
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2026
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IF 8.2
Bin Yang,Longfei Jiang,Songteng Luo,Yuan Yao,Yuanyuan Cao,Yongsheng Li
Excellent mechanical properties and force–electric coupling are essential for flexible conductive hydrogels, enabling their applications in soft robotics, wearable sensors, and human–machine interfaces. However, such hydrogels often face a fundamental trade-off between mechanical strength and electrical sensitivity. Inspired by the “soft–hard” architecture strategy in biological mechanical tissues and mussel-inspired multimode interacting mechanisms, we report the fabrication of a composite conductive hydrogel with enhanced mechanical strength, fatigue resistance, universal surface adhesion, and highly sensitive mechano-sensing capabilities by incorporating tannic acid-modified cellulose nanocrystals (CNC@TA) into an interpenetrating polyacrylamide/poly(vinyl alcohol)/poly(acrylic acid)/Al3+ multinetwork hydrogel matrix. The TA functionalization provides the CNCs with abundant cross-linking and interaction sites, enabling strong bonding with the surrounding matrix through physical entanglements, hydrogen bonding, π–π stacking, and coordination interactions. The hydrogel exhibits universal adhesion to various substrates and achieves well-performed mechanical property with elongation up to 765%, tensile strength around 83 kPa, and toughness around 276 kJ/m3. Simultaneously, the coordinated Al3+ ions provide the hydrogel with excellent ionic conductivity and a high strain sensitivity (gauge factor of up to 2.7). With superior mechanical properties and force–electric coupling performance, this hydrogel holds broad application potential in flexible electronics, human–machine interaction devices, and biomimetic materials.
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DOI
PubMed
高影响因子
CELLULOSE
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2026
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IF 4.6
Chang Minmin,Peng Ke,Shen Peng,Jia Zhixin,Zhang Xuejin
Cellulose-based foams have received increasing attention in sustainable materials due to their biodegradability and environmental friendliness. However, the poor compressive resilience and insufficient structural stability caused by the dynamic hydrogen bond between cellulose molecular chains severely restrict their applications in flexible sensing. In this study, a synergistic strategy combining Fe 3 ⁺ cross-linking and fines reinforcement is successfully developed. Specifically, carboxymethyl cellulose (CMC) serves as the matrix, which is combined with fines to reinforce the network structure. Fines are fragmented microscale pulp fractions separated from beaten bleached softwood pulp after screening with a 200-mesh sieve. And carbon black (CB) is introduced to enhance the conductivity, while Fe 3 ⁺ is introduced for cross-linking to further strengthen the stability of materials, thus yielding the multifunctional CMC/fines/CB/Fe 3 ⁺ composite foams. The resulting foams possess excellent compressive resilience, with a height retention rate of 89.25% after 1000 cycles under 40% strain. Meanwhile, the foams also exhibit ultra-low density (0.0590 g/cm 3 ), high porosity (90.3%) and low thermal conductivity (0.049 W/(m·K)). Crucially, the CMC/fines/CB/Fe 3 ⁺ foams exhibit ultrahigh sensitivity (8.55 kPa⁻ 1 ), which can work stably in both air and underwater environments, and maintain sensing stability after water immersion-drying cycles. This study provides an effective strategy for the preparation of high-performance cellulose-based foams and lays a foundation for the development of waterproof wearable electronic devices.
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ACS Applied Materials & Interfaces
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2026
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IF 7.8
Chengjie Sun,Yixin Luo,Mo Qiu,Qingxin Guan,Ruitong Ma,Zilu Zhang,Feng Shen,Shizhou Shen,Jirui Yang,Wei Li
Insufficient synergy between hydrolysis and hydrogenation seriously hinders the efficient conversion of insoluble cellulose in biomass utilization. Herein, using tobacco straw-derived lignin to prepare ordered mesoporous carbon (OMC), we report a complex-mediated strategy for constructing a Ni–P–O@NixP/OMC catalyst with tailored P–C–O doped sites and Niδ+–P–Oδ− frustrated Lewis pairs (FLPs). Characterizations and DFT results indicate that the P–C–O sites in a P/O-doped OMC support promote H2O adsorption and polarization, accelerating H3O+ generation for enhanced cellulose hydrolysis. Simultaneously, the Niδ+–P–Oδ− FLPs on the NixP surface promote H2 heterolysis and H2O dissociation, generating highly active Hδ+/Hδ– and H3O+ species that synergistically enhance hydrolysis and hydrogenation. Benefiting from the spatial coupling of hydrolysis and hydrogenation at the atomic scale, the prepared catalyst achieves an 80% sorbitol yield from cellulose in water at a low Ni loading of 4.5 wt %, along with satisfactory cycling stability. Increasing the Ni content to 8.0 wt % further raises the sorbitol yield to 89.5%, outperforming most reported noble-metal-based catalysts. Finally, a sorbitol yield in excess of 90% is obtained by using the residue after lignin extraction as the substrate. This work establishes a design paradigm for efficient cascade biomass conversion by creating atomic-scale P–C–O sites and Niδ+–P–Oδ− FLPs that enable spatially coupled hydrolysis and hydrogenation through tailored electronic structures.
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CARBOHYDRATE POLYMERS
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2026
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IF 13.2
Guancheng Liu,Zhe Zhang,Xin Long,Kai Zhang,Bai Yang
Hemoperfusion is an effective technique for removing low-density lipoprotein (LDL) from the bloodstream, with the performance of the adsorbent critical to its efficacy. This study innovatively introduces carbonized polymer dots (CPDs), which exhibit excellent biocompatibility and structural versatility, as a new functional ligand in hemoperfusion. A novel hemoperfusion adsorbent was prepared using cellulose microspheres as the support material. Here, we synthesized highly negatively charged CPDs using a hydrothermal method facilitated by nitric acid in the presence of citric acid and p-aminosalicylic acid. This process resulted in a stable zeta potential of −61.0 mV at physiological pH. Incorporating CPDs onto cellulose microspheres enhanced their negative charge from −1.22 mV to −31.0 mV, significantly improving LDL adsorption capacity to 80.3 ± 1.2 mg/g, with a removal rate of 80.3 ± 1.2%, which is 5.7 times greater than high-density lipoprotein (HDL). Furthermore, the introduction of CPDs improved the hemocompatibility of cellulose microspheres, resulting in a low hemolysis rate of 0.81% and minimal cytotoxic effects. FTIR and XPS characterization confirmed that the CPDs contain carboxyl and nitro groups, enhancing their negative charge properties. This research presents a new class of functional ligands for hemoperfusion adsorbents, indicating potential advancements in blood purification technologies.
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高影响因子
ACS Applied Polymer Materials
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2026
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IF 5.2
Zheyi Zhu,Li Wang,Haojie Yu,Yuan Meng,Yalong Wang,Ying Zhang,Chenguang Ouyang,Yuguang Lu,Lei Zhang,Yan Sheng
Water shortages in distant and dry areas require sustainable measures. An alternative composite hydrogel, which is extremely effective in solar-powered atmospheric water harvesting, is proposed in this research. Its synthesis was performed using radial polymerization. Based on polyacrylamide (PAM), hydroxypropyl cellulose (HPC) was incorporated to increase hydrophilicity. Lithium chloride (LiCl) was used as a humectant, and carboxylated carbon nanotubes (CNT-COOH) were used as photothermal nanofillers. The formulation of the optimized hydrogel (PAM-HPC0.3-CNT3.5-LiCl25) shows a high capacity of water absorption of 2.52 g g–1 at 90% RH and 25 °C and has the ability to achieve 90% saturation in 2 h at 40% RH. The hydrogel surface temperature under exposure to simulated sunlight (1.0 kW m–2) is 48.4 °C and allows desorbing approximately 96% of water in 10 h. It is also shown that the material has good cyclic stability after 10 adsorption–desorption cycles. Experimental testing outdoors proves its technical feasibility to collect atmospheric water on natural light. This paper offers a promising and energy-saving approach to materials to harvest water in areas with plentiful sunlight.
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JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2026
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IF 16.8
Jiasheng Wei,Long Jiang,Ping He,Hao Jia,Yifang Zhao,Gustavo Henrique Denzin Tonoli,R Gnanamoorthy,Xin Tong,Lei Dai
A cellulose‑based Salisbury‑screen composite achieves 90.8 dB EMI shielding at 1.3 mm. • The screen provides strong reflection and destructive interference for high shielding. • It combines low emissivity and thermal insulation for excellent infrared stealth. The development of materials that seamlessly integrate electromagnetic interference (EMI) shielding and infrared stealth is of vital importance in addressing the challenges of complex electromagnetic environments and advanced multi-spectral detection. However, conventional metallic spectral defense materials suffer from high thermal conductivity and high density, making it difficult to meet the requirements for lightweight, high-performance materials. Herein, we incorporated the classic Salisbury screen structure into cellulose-based composites to overcome this problem. The composite featured a “conductor-insulator-conductor” architecture consisting of a cellulose nanofiber (CNF)/metal carbides/nitrides (MXene) film as the conductive layer and a CNF/gelatin aerogel as the insulating layer. This design exploited high interfacial reflection and phase-delay‑induced destructive interference, achieving an EMI shielding effectiveness of up to 90.8 dB at a thickness of only 1.3 mm. Simultaneously, the Salisbury screen configuration inherited the low infrared emissivity of MXene and the thermal insulation capability of the aerogel, substantially reducing the radiation temperature of the hot target surface and exhibiting outstanding infrared stealth performance. By modulating a sustainable cellulose platform with a classic wave‑interference architecture, this work establishes a new paradigm for next‑generation spectrally compatible defense materials that combine high‑performance EMI shielding and infrared stealth in a lightweight, eco‑friendly composite. Download: Download high-res image (498KB) Download: Download full-size image
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CARBOHYDRATE POLYMERS
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2026
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IF 13.2
Mengdie Lei,Guilin Wu,Bo Zhou,Jiaman Hu,Pengcheng Yang,Zhong Zhao,Shiyang Shao,Jin Feng,Jize Liu,Guangming Cai
Sustainable wearable protective textiles integrating mechanical protection, monitoring, and visual feedback are desirable for healthcare and personal protection. However, multifunctional integration remains challenging because rigid inorganic fibers are difficult to integrate with conductive polypyrrole (PPy) and cellulose-based layers. Inspired by climbing plants, a biofermentation-induced cellulose integration strategy was developed to construct a basalt textile. Polypyrrole-coated basalt fabric was biofermented with bacterial cellulose (BC) to form a basalt/PPy/BC composite (BPB), the primary platform for mechanical protection and piezoresistive sensing. A self-assembled cellulose nanocrystal (CNC) layer was deposited on BPB to obtain basalt/PPy/BC/CNC (BPBC), adding structural-color feedback while retaining electrical responses. BPB exhibits an air permeability of 472.3 mm·s −1 , high mechanical robustness (maximum tensile force of 1390.6 N, 438.2 N bursting force, 24.4 N puncture force), good impact resistance (71.64% attenuation after 50 consecutive impacts), and piezoresistive sensing (−0.0448 and −0.0222 kPa −1 ). With the assistance of a one-dimensional convolutional neural network (1D-CNN), the platform enabled real-time hazard warning (98.3% within-dataset accuracy). This work provides a cellulose-mediated strategy for multifunctional cellulose-based smart protective textiles. Download: Download high-res image (227KB) Download: Download full-size image
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Lili Li,Liu Feng,Zhengmao Ye,Jiezhi Huang,Hui Peng,Xuejin Zhang,Jia Kong,Ping Lan,Guofu Zhou,Zhen Zhang
A liquid metal–wood hybrid was constructed via Pickering emulsion engineering. • CNC-stabilized liquid metal droplets enabled uniform infiltration into wood. • In situ droplet coalescence generated a continuous conductive pathway. • Multiple functionalities were achieved in a single bio-based material platform. • The strategy offers a new route for sustainable structural electronic materials. Wood, as a renewable and mechanically robust bio-based material, holds great promise for advanced functional applications; however, its intrinsic electrical insulation severely restricts its applications in advanced electronic and energy systems. Here, we report a facile approach to fabricate multifunctional conductive wood by infiltrating liquid metal (LM) via cellulose nanocrystal (CNC)-stabilized LM Pickering emulsion (PE). A hierarchically porous cellulosic wood scaffold (CBW) with enlarged lumen structures, reduced cell wall thickness, and improved pore accessibility is constructed through the selective removal of hemicellulose and lignin, enabling efficient infiltration of LM nanoparticles. The CNC-stabilized LM PE droplets are employed as LM nanoparticles and are introduced into CBW via vacuum-assisted impregnation. Subsequent hot pressing is proposed to facilitate the formation of an interconnected conductive network through the pressure-induced coalescence of discrete LM droplets. The resulting conductive wood (DCBW@LM) exhibits a high electrical conductivity of 310.2 S m −1 , good Joule heating performance, efficient near-infrared photothermal conversion, and stable EMI shielding effectiveness of 25–30 dB in the X-band. Moreover, DCBW@LM demonstrates significantly enhanced mechanical strength and flame resistance properties. This work establishes a facile strategy to construct highly conductive, photothermal, EMI shielding, robust, and improved short-term flame resistance wood and integrate LM with porous materials for sustainable, high value-added, and multifunctional applications. Download: Download high-res image (167KB) Download: Download full-size image
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
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IF 8.7
Haoran Shi,Jie Chen,Dongyang Han,Changhui Wang,Wenjun Huang,Jiandong Zhuang,Yan Yu,Xuexia Zhang
Metal-organic framework (MOF)-loaded cellulose aerogels show considerable promise for remediating water polluted by heavy metal ions. However, their practical application has been limited by energy-intensive drying methods and suboptimal performance. Herein, a low-cost, scalable preparation strategy to fabricate a MOF-loaded cellulose aerogel (denoted as b-CAT-Z) via ambient drying, employing bidirectional freezing combined with solvent exchange, without the need for toxic crosslinking agents. Specifically, tannic acid (TA)-modified cellulose nanofibers (CNF) and aramid nanofibers (ANF) form a robust skeleton, while MOFs (ZIF-8) anchored via hydrogen bonding and coordination interactions serve as nanofillers to enhance Pb(II) adsorption. The optimized b-CAT-Z aerogel exhibited an ultra-low density (20.3 mg/cm 3 ) and excellent mechanical properties, with a specific strength of 10.93 kN·m/kg. More importantly, benefiting from the construction of long-range ordered water transport channels, the b-CAT-Z aerogel prepared via bidirectional freezing demonstrates outstanding performance in adsorbing Pb(II), exhibiting a superior adsorption capacity (584.4 mg/g), removal efficiency (97.4%), and adsorption kinetics (reaching equilibrium within 180 min). These properties confer significant advantages over its counterparts prepared by random freezing (441.0 mg/g, 300 min) and unidirectional freezing (514.9 mg/g, 300 min). Remarkably, the b-CAT-Z aerogel still maintains a Pb(II) removal efficiency as high as 80.3% even after six adsorption-desorption cycles. Density Functional Theory (DFT) calculations revealed that the oxygen-containing and imidazole groups in b-CAT-Z strongly bind Pb(II), acting as efficient adsorption sites. The b-CAT-Z aerogel demonstrated favorable recyclability. This work presents an ambient-dried strategy for fabricating high-performance cellulose aerogels, providing valuable insights for designing next-generation heavy metal adsorbents.
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Polymers
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2026
·Vol. 18
·期 10
·1187
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IF 5.8
Xiaodong Bai,Zeyu Xue,Moubo Wang,Molin Song,Mengqian Yang,Jianpeng You,Yumei Luo
The temperature-sensitive plugging agent (HAAN) was synthesized via free-radical graft polymerization using hydroxypropyl methyl cellulose (HPMC), acrylamide (AM), 4-acryloylmorpholine (ACMO) and N-vinyl-2-pyrrolidone (NVP) as the main monomers. HAAN demonstrates potential for addressing the frequent lost circulation problems encountered during the drilling of complex formations. The target product was characterized by FTIR and1H NMR. Its phase transition behavior was verified via temperature-dependent UV-visible transmittance measurements and high-temperature rheological tests. The experimental results show that the plugging agent possesses good temperature and salt tolerance, and its rheological properties can be enhanced by incorporation into drilling fluid. It demonstrates effective plugging performance both at room temperature and under high-temperature conditions, thereby contributing to improved wellbore stability. It provides a new idea for green multifunctional application of cellulose in water-based drilling fluid.
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PubMed
高影响因子
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