CARBOHYDRATE POLYMERS
·
2020
·
IF 7.182
Yuan Zou,Xiaoai Wu,Haotian Li,Lu Yang,Chaoqun Zhang,Haoxing Wu,Yiwen Li,Li Xiao
Solar-driven water steam generation is a promising strategy for seawater desalination and wastewater purification. However, oil contaminants commonly exist in real water resources, which drives us to design and fabricate photothermal materials with high efficient water steam generation and outstanding anti-oil-fouling ability. Herein, we developed a metal-phenolic network-coated cellulose foam (Fe 3+ /TA@CF), which exhibits not only superb hydrophilicity and underwater lipophobicity, but also achieves high water evaporation rate of ∼1.3 kg m −2 h -1 even in oil-polluted seawater under one sun illumination. In addition, Fe 3+ /TA@CF is demonstrated to be both anti-oil-fouling and anti-salt-fouling, which benefits to long-term evaporation in practical utilizations. Metal ions and oil contaminants in the condensed water vapor are almost eliminated after purification. We believe that this low-cost, biodegradable Fe 3+ /TA@CF paves a way for rationally designing and fabricating high-performance evaporator for oil contaminated water purification.
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Wentao Gan,Yaoxing Wang,Shaoliang Xiao,Runan Gao,Ying Shang,Yanjun Xie,Jiuqing Liu,Jian Li
The architecture of cellulose nanomaterials is definitized by random deposition and cannot change in response to shifting application requirements. Herein, we present a magnetic field-controlled cellulose film derived from wood that exhibits great magnetic properties and reliable tunability enabled by incorporated Fe3O4 nanoparticles and cellulose nanofibers (CNF) with a large length-diameter ratio. Fe3O4 nanoparticles are dispersed in suspensions of CNF so as to enhance the magnetic response. The plane magnetic CNF can be processed to form a three-dimensional (3D) flower-like structure along the magnetic induction line after applying an external magnet. Inspired by the fluidic transport in natural flowers, a bilayer structure was created using the 3D flower-like film as the solar energy receiver and natural wood as the water pathway in a solar-derived evaporation system. Compared with a planar cellulose film decorated with Fe3O4, the 3D structure design can greatly improve the evaporation rate from 1.19 to 1.39 kg m–2 h–1 and the efficiency from 76.9 to 90.6% under 1 sun. Finite element molding further reveals that the 3D structural top layer is beneficial for the formation of a gradient temperature profile and the improvement of the energy efficiency through the reduction of thermal radiation. The magnetically controlled fabrication represents a promising strategy for designing cellulose nanomaterials with a complicated structure and controllable topography, which has a wide spectrum of applications in energy storage devices and water treatment.
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DOI
高影响因子
BIORESOURCE TECHNOLOGY
·
2016
·
IF 4.917
Yan Shi,Jingdan Li,Jing Wang,Tiantian Zhao,Hongmin Yang,Jianchun Jiang,Xiaoxiang Jiang
The liquefaction process of cellulose in polyhydric alcohols (PEG 400 and glycerol) was studied by TG-FTIR. Three stages were observed during the solvolysis process and the main liquefaction stage could be further divided into two zones. The differences of liquefaction behavior of cellulose in the two solvents were compared, and the functional groups of volatiles produced by solvolysis were also evaluated. A step-wise procedure based on iso-conversional and Master-plots methods was used for the kinetic and mechanism analysis of the main liquefaction stage. The calculation results based on the kinetic model were in agreement with the experimental data of the conversion rate. The kinetic parameters and mechanism functions between cellulose liquefaction in PEG400 and in glycerol were quite different, which verified that solvolysis behavior and reaction process were seriously influenced by solvent species. Finally, the detailed types of volatiles and product distribution were measured by Py–GC–MS.
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DOI
高影响因子
RSC Advances
·
2013
·Vol. 4
·期 16
·7845-7850
·
IF 2.562
Quan Xu,Qingshan Kong,Zhihong Liu,Jianjun Zhang,Xuejiang Wang,Rongzhan Liu,Liping Yue,Guanglei Cui
Eco-friendly cellulose microfibers were modified by mussel-inspired polydopamine coating layer and a cellulose/polydopamine (CPD) membrane was fabricated by a facile and cost-effective papermaking process. It was demonstrated that CPD membrane possessed a compact porous structure, superior mechanical strength and excellent thermal dimensional stability. CPD membrane was explored as a lithium-ion battery separator with its superior mechanical strength, low-cost and favorable electrochemical properties. Lithium cobalt oxide/graphite cell using CPD separator displayed the best cycling stability and rate capability compared with those of commercialized polypropylene separator and pristine cellulose separator. Furthermore, alternating-current impedance of the cell with CPD separator presented minor variation of 9 Ω after the 100th cycle indicating an excellent interfacial stability of the cell. These excellent performances could endow CPD membrane as a very promising application as a high performance lithium-ion battery separator.
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DOI
高影响因子
JOURNAL OF POLYMER RESEARCH
·
2024
·Vol. 31
·期 2
·1-14
·
IF 2.6
Yan Xiaofei,Shao Yehua,Gao Zhaoyang,Wu Bei,Wang Chen,Zhu Chenyan,Tu Lexi
Poly(lactic acid) (PLA), a new renewable and environmentally friendly polymer material, has gained significant attention in recent years. However, its application is limited by challenges such as poor thermal stability, brittleness and limited impact resistance. At present, PLA is predominantly modified through blending, filling and copolymerization methods. Although the above modification methods can effectively improve the properties of PLA, there are still some deficiencies in some places. In this work, CNF/Ti 3 C 2 T x /PLA composites were prepared by impregnation with poly(lactic acid) (PLA) and cellulose nanofibers (CNF), a new two-dimensional material Ti 3 C 2 T x , and a complete CNF membrane as a support framework. The effects of CNF and Ti 3 C 2 T x incorporation on the thermal, mechanical and electromagnetic shielding properties of PLA were investigated using various characterization techniques including FT-IR, XRD, DSC, TGA, tensile testing and electromagnetic test characterization. The results showed that CNF can improve the thermal stability and crystallinity of PLA, where the crystallinity can reach 23.5%. CNF synergized with Ti 3 C 2 T x to improve the mechanical properties of PLA, and the tensile strength was increased by 64.29%. Furthermore, Ti 3 C 2 T x imparted electromagnetic shielding properties to PLA composites. The findings expand the application of PLA composites in the field of electromagnetic shielding.
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DOI
高影响因子
CELLULOSE
·
2023
·Vol. 30
·期 16
·10427-10436
·
IF 5.7
Wu Yuhang,Li Yuwen,Zheng Yanchun,Yao Juming,Gao Junkuo
Metal–organic frameworks (MOFs) have received widespread attention in recent years. However, the powder form of MOFs limits their large-scale applications. To facilitate the application of MOFs, mass production and shaped manufacturing of MOFs is significantly effective. Herein, a generic method based on a simple polymerization technique is proposed to prepare highly porous MOF–cellulose composite beads and the application of these composite beads in dye removal and recovery is displayed. Non-toxic solvent water and biodegradable sodium carboxymethylcellulose (CMC) were used as raw materials in the synthesis method. In addition to maintaining the crystallinity and porosity of the MOFs embedded in the cellulose matrix, the unique three-dimensional lamellar interconnected structure provides good mechanical properties for the composite beads. To demonstrate the practicality of these composite beads, a recycling processing system was built as a proof-of-concept device. MIL-100/CMC-HD can effectively degrade more than 95% of the dye and can be recycled multiple times. The superiority of the MOF–cellulose composite beads is highlighted by their ease of recycling and storage compared to MOF powder. Graphical abstract MOF/carboxymethylcellulose porous composite beads are synthesized in a simple one-step process. The lamellar interconnected structure not only facilitates the diffusion of contaminants in water but also provides good mechanical properties.
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DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2021
·
IF 9.381
Meiling Zhang,Shuai Jiang,Fuyi Han,Mengmeng Li,Ni Wang,Lifang Liu
Attributed to low cost, renewable, and high availability, cellulose-based aerogels are desirable materials for various applications. However, mechanical robustness and functionalization remain huge challenges. Herein, we synthesized a recoverable, anisotropic cellulose nanofiber (CNF) / chitosan (CS) aerogel via directional freeze casting and chemical cross-link process. The chitosan was performed as strength polymers to prohibits the shrinkage and retains the structural stability of 3D cellulose nanofiber skeleton, endowing the composite aerogel with satisfactory deformation recovery ability (without loss under 60 % stress cycled 100 times). The CNF/CS composite aerogel has ultralow density (∼8.4 mg/cm 3 ), high temperature-invariant (above 300 °C) and high porosity (98 %). The CNF/CS aerogel demonstrates anisotropic thermal insulation properties with low thermal conductivity (28 mWm −1 K −1 in rational direction and 36 mW m −1 K −1 in the axial direction). Moreover, the composite aerogel (water contact angle ∼148°) exhibited outstanding oil/water selectivity and high absorption capacity (82–253 g/g) for various oils and organic solvents. Therefore, the multifunctional CNF/CS composite aerogels are potential materials for thermal management and oil absorption applications.
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DOI
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
·
2018
·
IF 3.849
Haonan Qu,Yanmei Zhou,Yiming Ma,Peng Zhao,Bin Gao,Meixia Guo,Caixia Feng
Natural amino acids were chosen as excellent precursors for the synthesis amino acid protic ionic liquids (AAPILs) and they can be easily converted to cations and properties of functionalities incorporate into ionic liquid. Herein, we reported the study to catalyze hydrolysis of cellulose in 1-butyl-3-methylimidazolium chloride solvent by using different structure of AAPILs, which were synthesized via a one-step acid-base neutralization reaction. In addition, amino, hydroxyl and carboxyl functional groups on the AAPILs serving as catalytic domain and binding domain can promote cellulose hydrolysis. Moreover, a remarkable total reducing sugar yield of 67.1% was achieved by lysine derived ionic liquid within 1.5 h at 130 °C while the cellulose conversion was nearly 100%, which was attributed to its more catalytic sites. On the whole, AAPILs are promising catalysts for the differential conversion of inedible cellulose owing to its low cost, sustainable renewable and potential biodegradable.
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DOI
高影响因子
WATER AIR AND SOIL POLLUTION
·
2024
·Vol. 235
·期 1
·1-13
·
IF 3.8
Wang Degui,Xiao Qiuying,Xiao Yepeng,Cheng Lihua,Chen Hong,Chen Bing,Wang Suhua
Since lead is a non-biodegradable and neurotoxic heavy metal, efficient removal of Pb(II) from water is of great significance. Herein, a new type of functional cellulose with enriched thiourea groups (Thiourea-PC) was synthesized using the leaves of plumeria frangipani, a common agricultural solid waste, as the starting materials and applied for the efficient removal of lead ions from water. The properties of the cellulose-based adsorbent have been carefully analyzed and evaluated using FT-IR, SEM, XPS, and elemental analysis techniques. The results showed that the maximum adsorption capacity of Thiourea-PC was 173.92 mg/g under the optimal conditions. The adsorption mechanism was attributed to the complex reaction between Pb(II) and mercaptan/nitrogen-containing groups, and the adsorption process conformed to Langmuir isothermal adsorption model and Pseudo-second-order kinetic model. It is worth noting that after five cycles of adsorption–desorption, the removal rate of Pb(II) by Thiourea-pc was still high, reaching more than 97%, and it had been successfully applied to the simulated adsorption of actual water samples with excellent selectivity. Adsorbent precursors come from a wide range of sources, are economical and effective, and the resource utilization of biomass waste can be realized through sustainable synthesis.
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DOI
高影响因子
ACS Omega
·
2025
·
IF 4.3
Brian Zhao,Chenghao Wang,Jia Huang,Junyao Zhang
Developing covert, convenient, rapid, and cost-effective detection methods for trace amounts of addictive drugs poses a challenging task. Herein, wood-derived ionic conductive cellulose (WICC) is presented as a sensitive material, where active metal cations serve as charge carriers and effective adsorption/binding sites for a typical analog of the addictive drug N-methylphenethylamine (MPEA). The addition of Cu2+ ions improves the sensing performance of WICC, and the simple drop-coating process will facilitate the fabrication of the device array and the integration with flexible substrates. Taking advantage of WICC with excellent ion conductivity, high transparency, and mechanical flexibility, transparent and flexible sensors based on WICC are demonstrated, enabling real-time detection of MPEA. Notably, the high transparency makes WICC particularly suitable for covert detection. More significantly, the WICC sensors exhibit outstanding selectivity, facilitating an ultralow theoretical detection limit (∼12 nL). This work provides a promising pathway toward the next-stage construction of invisible chemical sensors for addictive drug detection.
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产品关联
DOI
PubMed
高影响因子
CELLULOSE
·
2025
·
IF 4.8
Bai Xiaoyu,Wan Mengyu,Fan Wuhou,Kang Jianping,Xia Zhaoxia,Li Jiangtao,Lan Jingying,Xiao Lan,Zuo Song,Jiang Yuanzhang,Tan Lin,Zhang Yong
Electrostatic spinning technology can prepare nanofiber materials with high specific surface area and unique microstructure. Cellulose acetate (CA) has excellent membrane formation and processability, while chitosan (CS) is positively charged due to the abundance of amino groups and has certain biological activities. In this paper, CA/CS nanofiber membranes with different CS contents were prepared by solution blending and electrostatic spinning techniques and used in hemoperfusion (HP) for targeted removal of endotoxins. The CA/CS nanofibrous membranes were systematically characterized using infrared spectroscopy, scanning electron microscopy, etc., and the clearance ability of CA/CS nanofibrous membranes for endotoxin was tested under static and dynamic simulated HP conditions. The results showed that the addition of CS changed the structure of CA nanofibers, significantly increased the specific surface area of CA/CS nanofiber membrane, and provided more adsorption sites for the membrane material. The positive charge of CS interacted with the negatively charged endotoxin in the blood through electrostatic attraction, which enabled the CA/CS nanofiber membranes to adsorb endotoxin efficiently and exhibit higher endotoxin clearance ability. In the static adsorption experiment, when the CS content was 3.75%, the endotoxin adsorption and clearance rate could reach 580.0 ± 32.2 EU/g and 65.1 ± 3.6%, respectively. In the dynamic adsorption experiment, when the CS content was 2.50%, the CA/CS nanofiber membrane had a good effect on the adsorption of endotoxin. Meanwhile, CA/CS nanofiber membrane also has good blood compatibility. Therefore, the CA/CS nanofiber membrane is potentially valuable in blood purification.
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yan Jiang,Mengmeng Yang,Liyun Cheng,Lu Xiao,Xinyi Wang,Ruixuan Liu,Yiyan Wu,Shuangfei Wang,Xiuyu Liu
The integration of lignocellulosic nanomaterials into energy management applications possesses enormous technical appeals catering to high-tech and low-carbon era. Nature has designed hierarchical and heterogeneous lignocellulose microstructure, which can be harnessed for desirable dielectric behaviors towards specific applications. Here, we make the first attempt to boost the tribopositivity of 2D self-assembly (i.e., nanopaper) of cellulose nanofibrils by leveraging the inherent functionality of their hemicellulose phase. In comparison to conventional nanopapers assembled from TEMPO-oxidized/enzymatic cellulose nanofibrils with significantly lower hemicellulose content (4.6/12.2 vs. 20.3 wt%), the as-prepared hemicellulose-rich nanopaper exhibits ~2-fold higher electron-donating capability, which in turn generates ~1.5-fold higher triboelectric nanogenerator (TENG) output when paired with given tribonegative materials. We provide multiscale insights into the boosted tribopositivity of nanopaper by hemicellulose phase arising from its unique molecular structure and micro-distribution pattern. Furthermore, amorphous hemicellulose phase can be readily molecularly designed, e.g., aminosilanization, which further enhances the tribopositivity of nanopaper towards self-powered applications requiring high energy density. Besides, the hemicellulose-rich nanopaper is highly writable, mechanically strong, and optically transparent, serving as a desired structural material with favorable programmability for various TENG-based sensing, encryption and wearable devices.
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DOI
高影响因子
危险品化学品经营许可证（带存储）