CARBOHYDRATE POLYMERS
·
2020
·
IF 7.182
Xuanang Gong,Zenghui Cheng,Shishuai Gao,Daihui Zhang,Yufeng Ma,Jifu Wang,Chunpeng Wang,Fuxiang Chu
In this work, reversible addition-fragmentation chain transfer (RAFT) polymerization and Schiff base chemistry was combined to fabricate self-healing adhesives. An esterification reaction was first performed to prepare ethyl cellulose based macroinitiators. Then, a “grafting from” RAFT of vanillin methacrylate and lauryl methacrylate was used to obtain graft copolymers. DSC result showed that the glass transition temperature was manipulated via changing the ratio of vanillin and fatty acids moieties. NMR spectrum analysis demonstrated the presence of aldehyde groups, which were available for the dynamic crosslinking to generate a network as self-healing adhesives. The adhesive test showed that the shear strength could reach 0.81 MPa with a self-healing efficiency of 98.7 %. The bottlebrush structures of copolymers and reversibility of Schiff base chemistry might collaboratively contribute to the high self-healing efficiency. This study provides a facile way to fabricate high-performance self-healing adhesives from ethyl cellulose and renewable resources.
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高影响因子
Polymers
·
2025
·Vol. 17
·期 9
·1203
·
IF 4.9
Jinghao Cui,Hongliang Meng,Wei Li
Cellulose-based separators with good electrolyte wettability and thermal stability have attracted extensive attention in the area of lithium metal battery (LMB) applications. However, their low mechanical strength in an electrolyte has seriously hindered their cycling performance of assembled LMB. Herein, a silane-crosslinked propionylated cellulose-based separator (PBF-GPTMS) was prepared. The resulting separator exhibited high wet strength (18.7 MPa) and electrolyte uptake (312 wt%). Molecular simulation revealed that Young’s modulus of the silanized propionylated cellulose model was 14.64 GPa under EC/DMC/DEC conditions, which was higher than that of the propionylated cellulose model (6.89 GPa). In particular, the XPS spectra of the Li foil in the PBF-GPTMS-assembled battery after cycling suggested a lower amount of HF formed during cycling. Accordingly, the assembled Li/Separator/LiFePO4cell showed excellent cycle performance with capacity retention of 94.5% after 300 cycles at 0.5 C and 93.6% after 160 cycles at 1 C, respectively. This idea would provide novel insights into the design of bio-based separators for long-life LMBs.
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ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Long Wang,Tao Li,Junying Wu,Gang Song,Guiting Chen,Zhicai He,Yong Cao
Regulating aggregation and molecular packing of small-molecule cathode interlayer (CIL) materials is a significant but imperceptible issue in the development of high-performance organic solar cells (OSCs). For the celebrity PDINN small molecule, the strong aggregation tendency of the perylene diimide molecular backbone leads to excessive crystallinity when films form, ultimately affecting the morphology and charge transport ability of the films. Herein, we address this issue by developing a hydroxyl-induced anti-aggregation strategy by introducing a suitable amount of hydroxypropyl cellulose (HPC) into the solution of PDINN, and a careful balance is achieved between the film-forming quality and the aggregation of the material. Taking two commercially available active layer systems, PM6/Y6 and D18/L8-BO, as examples, the introduction of HPC significantly increases the JSC and FF values of the devices. Therefore, power conversion efficiency risen from 17.38% to 18.25% for the PM6/Y6 system and from 18.45% to 19.73% for the D18/L8-BO system, and it was proved that the thickness tolerance of the HPC hybrid interface was improved significantly. This hydroxyl-induced anti-aggregation strategy has demonstrated efficiency in other active layer systems. This work provides a simple and effective method to solve the aggregation problem of small molecule CIL materials, which is conducive to the commercial development of OSCs.
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INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Lijia Jia,Liying Zhang,Zhenghan Cai,Feng Zhu,Biao Huang,Qilin Lu
Integrating superior flexibility, conductivity, energy harvesting and broad working temperatures into cellulose hydrogel for deformable energy storage and self-powered sensors has become urgent. Herein, an ultra-flexible anti-freezing conductive versatile hydrogel is developed via synchronously regulating polyvinyl alcohol (PVA) with cellulose nanocrystals (CNCs) and covalent organic frameworks (COFs) to form a multiple hydrogen-bonded ordered network under phytic acid (PA) crosslinking synergy. Introducing COFs into hydrogel network provides continuous protons transport channel while PA generates protons and permanently secures the hierarchical structure of hydrogel, and thus endowing the hydrogel with exceptional proton conductivity (2.46 S/m), ultra-flexibility (tensile strain of 725 %), and outstanding antifreeze conductivity (withstand −40 °C). With these attributes, the hydrogel assembled supercapacitor exhibits stable energy storage capacity (84.7 mF/cm²) and bending resilience (endure bending angles of 180°), whereas the hydrogel-based triboelectric nanogenerator (TENG) presents excellent electrical output performance. Moreover, the designed hydrogel strain sensor demonstrates high sensing sensitivity, enabling stable monitoring of various joint movements and subtle facial expressions. Overall, this study presents a promising approach for designing biomass-based versatile hydrogels with outstanding mechanical performance and energy harvesting and storage functionality for emerging applications in self-powered flexible sensors.
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ACS Applied Energy Materials
·
2025
·
IF 5.5
Ziyang Gong,Renjie Zhou,Shi Li,Weile Li,Xuefeng Gui,Jiwen Hu,Yafang Han,Shudong Lin,Yuanyuan Tu
As the widespread application of lithium-ion batteries and growing environmental protection requirements, it is of great research significance and commercial value to develop high-performance separator materials with both sustainability and economy. The aqueous polyacrylate dispersion (APD) is synthesized and applied to a cellulose-based membrane (CM) as an improved lithium-ion battery separator in this work. It is confirmed by structural characterization and morphological observation that APD is successfully coated onto the surface of CM to form a functional protective layer. The optimized CM-APD separator provides greater dimensional, thermal, and chemical stability, which is evidenced by lower dimensional shrinkage and less mass loss at high temperatures as well as a superior electrochemical stability window (5.29 V), in addition to excellent electrolyte uptake (154%) and ionic conductivity (2.31 mS·cm–1). Besides, owing to enhanced electrochemical stability and interfacial compatibility by the functional groups in the APD, batteries with the CM-APD separator show significantly better operational stability and specific capacity compared to original CM and commercial polypropylene (PP) separators. Therefore, the improved cellulose separator CM-APD provides valuable insights for the development of high-performance lithium-ion batteries that satisfy both environmental friendliness and economic requirements.
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Coatings
·
2025
·Vol. 15
·期 5
·557
·
IF 2.8
Yuhang Shu,Guangyu Zhang,Zhipeng Liao,Yao Liang,Qidong Wang,Yu Ren,Zhaohang Yang
Heavy metal ion contamination in aquatic systems presents substantial environmental and public health challenges, demanding innovative remediation solutions. This study reports the synthesis of phosphorylated cellulose (PC) monoliths via thermally induced phase separation (TIPS) as a sustainable solution for heavy metal removal. Through systematic optimization of phosphorylation degree (ranging from 16.3% to 49.5%) and pore architecture, we developed materials with exceptional adsorption capacity and flow characteristics. Comprehensive characterization (SEM, FTIR, and elemental analysis) confirmed the successful incorporation of the phosphate group while revealing tunable three-dimensional porous structures controlled by cellulose acetate concentration (80–120 mg mL−1) and phosphorylation parameters. Optimal Cu2+adsorption occurs at 43.9% phosphorylation, coupled with stable permeability, under continuous flow conditions. The monolith effectively removes heavy metal ions (e.g., Cu2+, Ni2+, Cd2+) across a wide pH range, driven by electrostatic and hard-soft acid-base interactions. Additionally, the material maintains an absorption capacity of over 90% after multiple regeneration cycles. These findings highlight the potential of PC monoliths as cost-effective, scalable, and environmentally friendly adsorbents for heavy metal ion removal in water treatment applications.
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SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2025
·
IF 6.3
Cheng Xue,Cong Qi,Wenzhu Li,Jia Lian
In order to boost the photothermal conversion and solar evaporation efficiency of membrane, mixed cellulose ester (MCE) filter membranes was modified by reduced graphene oxide (rGO) and Fe 3 O 4 nanoparticles, and a novel rGO-Fe 3 O 4 -MCE membrane was developed. Firstly, the solvothermal synthesis process of hybrid material rGO-Fe 3 O 4 was presented, and then the preparation process of rGO-Fe 3 O 4 /MCE membrane was introduced. Effects of different rGO mass fractions, rGO-Fe 3 O 4 loadings and light intensity on the photothermal evaporation of the thin membrane were experimentally researched. Results indicated that rGO-Fe 3 O 4 /MCE membrane shows excellent sunlight absorption and photothermal conversion efficient owing to its fast water transport capability, the evaporation rate is 1.501 kg m −2 h −1 , and the solar vapor conversion efficiency is 89.69 %, which exceeds the conversion efficiency of most previous solar evaporators. The membrane desalination performance and durability study were also conducted. Cycling tests confirmed that the system is able to maintain stable performance for 20 cycles under the same lighting conditions. The novel rGO-Fe 3 O 4 /MCE membrane of this paper has great potential application value owing to its great photothermal conversion efficiency, stable mechanical properties, cost-effectiveness, simple preparation process, and strong reusability.
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CARBOHYDRATE POLYMERS
·
2025
·
IF 12.5
Jinlong Zhang,Shiyu Fu,Hao Liu,Juanli Shen,Xi Yuan,Xuepei Zhou
Bioplastics based on lignin-containing cellulose nanofibrils (LCNF) have emerged as attractive alternatives to petrochemical plastics. However, the preparation of LCNF-based bioplastics with excellent wet-mechanical properties and water stability remains challenging. This study reports a sustainable route for the preparation of LCNF-based bioplastics with excellent wet mechanical properties and water stability. First, a deep eutectic solvent was employed to pretreat the bamboo powder to partially remove lignin. Then, the pretreated bamboo powder was esterified by one-step maleic anhydride (MAH) esterification to produce maleic anhydride-esterified LCNF (MLCNF). MLCNF exhibits a high aspect ratio (337), fine diameter (4.6 nm), and high surface charge (1.67 mmol/g). These properties endow MLCNF bioplastics with excellent wet elongation at break (41 %, significantly higher than other cellulose-based bioplastics), wet tensile strength (43.5 MPa), wet toughness (9.8 MJ m −3 ), dry tensile strength (164 MPa), dry toughness (15.7 MJ m −3 ), thermal stability, hydroplastic properties, and water stability (water contact angle: 91°). This research provides a straightforward, eco-friendly, and efficient approach for developing bioplastics with excellent wet mechanical properties and water stability using renewable lignocellulosic resources, with the potential to replace petrochemical plastics.
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Boyu Cui,Jiayan Ding,Hao Xie,Tong Ji,Chunmao Yang,Yutong Cui,Xin Shu,Wei Dai,Weihong Wang,Shuang Li
The excessive reliance on traditional petroleum resources poses significant environmental challenges. Fortunately, agricultural straw, which is often regarded as a waste product, has considerable potential for various applications. However, these materials are frequently crushed into particles, thereby neglecting their inherent structural advantages. In this study, wheat straw is utilized in its complete form and converted to a strong and flexible fiber bundle. We employ a top-down approach on whole wheat straw that involves an alkali pretreatment combined with delignification and freeze-drying to obtain highly directional cellulose aggregates. Subsequent twist densification results in the formation of a strong, flexible wheat straw-derived fiber bundle (WFB). WFB exhibits an excellent strength of 203.9 MPa, representing a 3.4 improvement rate in relation to that of the initial straw. This indicates that agricultural waste can be transformed to a high-performance material, embodying the concept of “Waste to Wealth.” In addition, WFB can be further functionalized (e.g., via hydrophobic treatment, dyeing treatment, or incorporation with a conductive material) on the basis of the abundant hydroxyl groups present on its surface. This strategy provides insights into the innovative utilization of straw and promotes its application in wearable textile and smart fiber development.
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INDUSTRIAL CROPS AND PRODUCTS
·
2022
·
IF 6.449
Sudong Yang,Lin Chen,Shanshan Wang,Shuai Liu
Superhydrophilic textiles with underwater superoleophobicity have shown excellent separation performance for emulsified oil in wastewater, but their hierarchical structure and hydrophilic chemical design are complicated. Herein, a hydrophilic hierarchical layer of cellulose is constructed on commercial cotton fabrics surface through in-situ self dissolving and regenerating strategy. During the process, zinc chloride solution is used as solvent to dissolve cellulose, and sodium sulfate is used as pore forming agent to obtain open porous structure. The cellulose provides both hydrophilic surface and hierarchical structural foundation for the remodeled cotton fabrics (RCFs) without any further chemical modification. Based on the robust mechanical stability, superhydrophilicity, underwater superoleophobicity (θ oil > 150º), and anti-oil fouling property, the RCFs achieved a remarkable separation performance for oil-in-water emulsions with high separation efficiency (> 99.0%) and recyclable antifouling performance. The developed RCFs assembly strategy provides an excellent membrane for oil-in-water emulsion separation, and a new prospect for the convenient and universal construct of other superwetting cellulose-based materials.
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高影响因子
Journal of Materials Research and Technology-JMR&T
·
2022
·
IF 6.267
Zhi-Wen Zhang,Cui-Ying Lu,Guang-Hui Liu,Yuan-Jia Cao,Zhen Wang,Ting-ting Yang,Yu-Hong Kang,Xian-Yong Wei,Hong-Cun Bai
A green and effective nitrogen and nickel in-situ doping strategy was designed to prepare cellulose-based N/Ni co-doped porous carbon (PC). The co-hydrothermal pretreatment induced by hydrazine hydrate and nickel acetate effectively modifies the physico-chemical structure of PC and further improves its electrochemical performance. The efficient N-supply and unique heteroatom regulation performance of hydrazine hydrate is related to its strong reducibility. The specific surface area and total pore volume of the synthesized N 4 NiPC 220-3 are 1383.66 m 2 g −1 and 0.59 cm 3 g −1 , while the N and O contents are 1.35 and 10.41%, respectively. At current densities of 0.5 and 20 A g −1 , N 4 NiPC 220-3 exhibits a high specific capacitance of 415 F g −1 and a good capacitance retention of 72.22%, respectively. After 10,000 charge/discharge cycles, the retention rate is as high as 96.06%, confirming its excellent cycling stability. The two-electrode system test results further show that the energy density of N 4 NiPC 220-3 is as high as 35.6 W h kg −1 at a power density of 500.1 W kg −1 , while a high retention rate of 87.87% is still obtained after 10,000 cycles. This green and efficient synthesis method based on in-situ co-doping of hydrazine hydrate and nickel acetate is a promising alternative strategy for producing carbon-based supercapacitors.
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高影响因子
Journal of Biobased Materials and Bioenergy
·
2023
·Vol. 17
·期 2
·225-231
·
IF 0.5
Wang Lei,Miao Lei,Chen Dong-Chu,Zhang Min
The recycling use of wood sawdust to process composite boards has received much attention in recent years. To avoid the use of chemical adhesives, natural cellulose-based materials were often used as adhesives to combine wood sawdust. Rather than utilizing nanocellulose, the report
herein describes a method to prepare a robust composite board that is based on microfibrous cellulose, which is a low-cost commercial product. To effectively cross-link wood sawdust and microfibrous cellulose, phosphoric acid-activated glutaraldehyde was used as catalyst. Compared to its uncross-linked
counterpart, the modulus of elasticity and modulus of rupture of the composite board that had been cross-linked by glutaraldehyde and phosphoric acid were significantly strengthened to 3.45±0.06 GPa and 36.5±3.5 MPa, respectively. Moreover, the moisture resistance of the cross-linked
composite board was also enhanced. After soaking in water for 24 h, the mass swelling ratio and thickness swelling ratio of cross-linked composite board had only changed 49% and 21%, respectively. These performances even exceeded that of composite board prepared from nanocellulose. The method
described in this work may have applications in commercial processing and the recycling of wood sawdust.
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