LANGMUIR
·
2025
·
IF 3.9
Jinghan Ding,Jiakang Yu,Jinmeng Zhu,Liuyang Han,Hong Guo,Rui Feng,Wenqiang Dong,Xichen Zhao,Shan Wang,Li Li,Xuanhua Li
Palm leaf manuscripts, crafted from specially treated palm leaves, are invaluable historical documents. However, they degrade and tend to become brittle over time. To date, plant essential oils and glycerin are the used materials to improve the flexibility of palm leaf manuscripts, but the effective duration of these materials is short due to their volatility. This work introduces ionic liquids, a nonvolatile and stable material, to achieve durable toughening of the palm leaf manuscripts. We select 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIm][BF4]), one of the most used ionic liquids, as the subject of research. We find that [BMIm][BF4] does not alter the palm leaf manuscripts’ appearance and significantly improves their tensile strength and fracture toughness by 39.9 and 101.0%, respectively, while reducing the bending modulus by 25.7% and increasing the bending fracture deflection by 2.6 times. Notably, [BMIm][BF4]’s toughening effect for palm leaf manuscripts is sustainable for over 2 months, outperforming traditional methods that last only about 1 week. Even under harsh conditions, such as low humidity, high temperatures, alkalinity, and UV exposure, [BMIm][BF4] still maintains its effectiveness. Through the analysis of its composition, structure, and theoretical simulation, we reveal that [BMIm][BF4] penetrates the manuscripts, filling the pores between the inner structure of them and adsorbing strongly with cellulose. This enhances load transfer and reduces the stress concentration, resulting in increased toughness. This research provides innovative materials for palm leaf manuscript conservation and deepens our understanding of their mechanical properties.
研究领域:
文物保护
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材料科学
·
植物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NORDIC PULP & PAPER RESEARCH JOURNAL
·
2024
·
IF 0.9
Tao Tang,Rui Chen,Lirong Lei,Songqing Hu,Yi Hou
Aerogels are essential and effective materials for oily pollution adsorption and recovery. This work described a hydrophobic modified cellulose aerogel using waste palm leaf and its oil adsorption mechanism. By chemical vapor deposition, Methyltrimethoxysilane (MTMS) was employed as a hydrophobic modifier for aerogel of waste palm leaf cellulose at 80 °C for 5 h, and the modified aerogel demonstrated exceptional and stable hydrophobicity with a water contact angle of 132.4° that can still be maintained above 120° after two months of air exposure. After 10 adsorption and extrusion cycles, kerosene adsorption capacity can still reach over 18 times its weight with good regeneration and reuse performance. The kinetic analysis found that the pseudo-second order model was more appropriate for the aerogel’s oil absorption process, including mainly physical adsorption at the beginning and the following chemical adsorption. Owing to its low cost, hydrophobicity, high absorption capacity, and favorable reusability, this aerogel is expected to be used in oils, organic solvent spill cleanup, and oil/water separation fields.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2022
·
IF 9.794
Wei Nie,Hongwei Cheng,Xiaolin Liu,Qiangchao Sun,Feng Tian,Wenli Yao,Shuquan Liang,Xionggang Lu,Jiang Zhou
To achieve widespread application of sodium-ion batteries (SIBs) in the future new energy market, developing electrode materials with low-cost sustainability and excellent electrochemical properties is imperative. Herein, a mesoporous N-doping palm leaf-based hard carbon (PLHC-N) anode with a high-rate and long lifespan is synthesized via an in-situ polymerization method by using palm leaf as the carbon precursor and polyaniline as the nitrogen source. Benefiting from the natural holey structure, the PLHC-N exhibits excellent Na + storage capability with numerous ion transfer channels and a good volume buffer . Meanwhile, the N-doping materials improve ion and electron transferability and create more active sites for Na storage. Impressively, the PLHC-N sample shows an adsorption-intercalation-hole filling storage mechanism and affords an ultrahigh reversible capacity of 373 mAh g −1 at 25 mA g −1 , and long-term cycle stability at 200 mA g −1 (∼95.0% retention upon 1000 cycles). Moreover, a full cell with a Na 3 V 2 (PO 4 ) 2 F 3 as cathode shows a favorable cyclability (112 mA h g −1 after 100 cycles at 0.5C (1C = 128 mA g −1 ) and a decent capacity retention of 90.1%). Given the cost effectiveness and material sustainability, our work provides novel strategy to design the hard carbon anode materials for advanced SIBs.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
RSC Advances
·
2022
·Vol. 12
·期 14
·8592-8599
·
IF 4.036
Yan Zhang,Ziqi Wei,Xing Liu,Fan Liu,Zhihong Yan,Shangyong Zhou,Jun Wang,Shuguang Deng
Biomass-derived porous carbons are regarded as the most preferential adsorbents for CO2 capture due to their well-developed textural properties, tunable porosity and low cost. Herein, novel porous carbons were facilely prepared by activation of palm sheath for the highly selective separation of CO2 from gas mixtures. The textural features of carbon materials were characterized by the analysis of surface morphology and N2 isotherms for textural characterization. The as-prepared carbon adsorbents possess an excellent CO2 adsorption capacity of 3.48 mmol g−1 (298 K) and 5.28 mmol g−1 (273 K) at 1 bar, and outstanding IAST selectivities of CO2/N2, CO2/CH4, and CH4/N2 up to 32.7, 7.1 and 4.6 at 298 K and 1 bar, respectively. Also, the adsorption evaluation criteria of the vacuum swing adsorption (VSA) process, the breakthrough experiments, and the cyclic experiments have comprehensively demonstrated the palm sheath derived porous carbons as efficient adsorbents for practical applications.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）