JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Zeyi Wang,Yuzhen Qian,Ping Qi,Aixin Song,Jingcheng Hao
Hypothesis G-quadruplex structures, assembled from guanosine (G) or its derivatives, are significant for their close association with biological processes and their capacity to serve as good templates for constructing functional materials, but the research and applications of G-quadruplex structures are mainly confined to aqueous solutions (in water). Experiments We report the experimental evidence of an ionolamellar liquid crystal of G-quadruplex assembled from underivatized guanosine, which are induced by metal ions (K + , Na + , Ca 2+ and Sr 2+ ) in a protic ionic liquid (ethylammonium nitrate). The stacking mode of G-quartets varies with borate ester content and the ratio of borate ester to guanosine ( R B/G ) for K + , while remaining unchanged for Na + . For Ca 2+ and Sr 2+ , the stacking mode also changes by excess divalent metal ions, leading to a chiral inversion with changing concentrations of guanosine, and exhibiting strong affinity with borate ester to stabilize G-quadruplex. Ionolamellar liquid crystal displays ionic conductivity, κ = 7.20 and 9.96 mS·cm −1 for mono-and di-valent ions, respectively. Findings These results advance our understanding of the structures of G-quadruplex and the role of dynamic borate esters in ILs, and may offer a new option to design the ionolamellar liquid crystal and electrolytes for biomedical devices.
研究领域:
生物物理学
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超分子化学
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材料科学
·
生物有机化学
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物理化学
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纳米技术
·
电化学
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PubMed
高影响因子
CHEMICAL PAPERS
·
2025
·
IF 2.5
Kong Weizhen,Mao Jiaming,Peng Qianqian,Qin Shucan,Shi Longmei,Wu Anshuang,Xu Shengyun,Shi Jianming,Liu Yanrong,Ma Yunqian
High-value-added sulfur products as well as hydrogen (H 2 ) can be obtained by electrolytic oxidation of hydrogen sulfide (H 2 S), which is a promising energy conversion technology that contributes to the resource utilization of the pollutants. In conventional sulfide oxidation reaction (SOR), the recovery of the anodic product typically requires additional acidification treatment, resulting in the unsustainable use of electrolyte. Here, a novel H 2 S direct electrolysis system with ionic liquid (IL)-based electrolyte, consisting of acetate-based ILs and NaOH aqueous solution, was investigated. Compared to single NaOH aqueous solution, [Hmim]Ac-based electrolyte showed high H₂S absorption capacity and best electrochemical performance for SOR. Significantly, the anodic sulfur product was proved to be α-sulfur, which could be self-precipitated from the electrolyte without extra acid. The [Hmim]Ac-based electrolyte has the highest equilibrium solubility of sulfur (30.8 g L −1 ), which was 2–3 times that of the conventional electrolyte of NaOH aqueous solution. It is mainly attributed to the synergistic coupling of ILs and NaOH for H 2 S absorption and the modulating effect of ILs. Under constant potential electrolysis at 1.2 V vs RHE in [Hmim]Ac-based electrolyte, the maximum current density reached 194.4 mA cm −2 , the maximum hydrogen production rate reached 3945 μmol h −1 , the Faraday efficiency reached 97.9%, and the sulfur recovery of 82.6%. The IL-based electrolyte can be reused for at least three cycles of absorption-electrolysis, holding promise for efficient and continuous electrolysis of H 2 S. Graphical abstract
研究领域:
能量转换
·
电化学
·
环境可持续性
·
化学工程
·
绿色技术
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Xingxing Li,Jianing Qi,Mingjing Shi,Yuan Yao,Yingying Cao,Xue Wang,Hui Wang
Artemisinin is primarily derived from Artemisia annua L. However, due to the complex composition of its leaf extract, the purification and separation of artemisinin remain a significant challenge. In this work, various poly(ionic liquid)s (PILs) containing polar ester groups and non-polar long-chain alkyl groups were synthesized through radical polymerization. Subsequently, these PILs were made into coatings with controllable pore sizes and adjustable hydrophobicity. The ethyl octadecanoate based PIL coating showed excellent capability to intensify this purification process. The product purity could reach 96.8% after one crystallization step under the optimal conditions, approximately 30.8% higher than the traditional method. And the product purity could reach 99.9% after three sequential separation processes. In addition, the adsorption kinetics of wax oil on the PIL coating were studied, and the results indicated that it followed a pseudo-first-order kinetic model with a maximum adsorption capacity of 226.33 mg/g. Mechanism analysis demonstrated that hydrogen bonding and van der Waals forces between the wax oil and PIL facilitated the adsorption of the wax oil, thereby increasing the purity of artemisinin.
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Lubrication Science
·
2019
·Vol. 32
·期 1
·1-9
·
IF 1.682
Mingjin Fan,Shuai Zhang,Lin Ma,Yu Lu,Jia Ai,Xin Du,Wenjing Sun,Desuo Yang,Feng Zhou,Weiming Liu
In this work, a series choline monocarboxylate ionic liquids ([Ch][MA] ILs) were synthesized. The physicochemical properties and lubricating efficiency of the ILs on copper and aluminum discs were systematically investigated. At the same time, their ecotoxicity was explored on aquatic organisms. In comparison with 1-butyl-3-methyl imidazolium tetrafluoroborate (L-B104), which is a kind of traditional IL, [Ch][MA] ILs exhibited excellent lubricating properties and low toxicities, thus can be considered as environmentally friendly lubricants in tribology.
研究领域:
材料科学
·
环境科学
·
生物学
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 8.2
Haoran Li,Tianqi Ma,Yanchao Wu,Huimin Qi,Ga Zhang,Huijing Li
Biofouling poses significant challenges to equipment, and liquid-infused surfaces (LIS), a current research hotspot, are faced with dual bottlenecks of self-healing and inefficient passive protection. This study reports an ionic liquid-infused self-healing polysiloxane (SH-L). By combining a weakly polar ionic liquid (IL) with a hydrogen-bonded polysiloxane matrix, an intelligent coating that integrates damage self-healing with active/passive synergistic antifouling has been constructed. The material exhibits self-healing capability at room temperature, with significantly enhanced healing rates after IL phase transition at 38 °C. Regarding antifouling performance, SH-L not only enables fouling release through its liquid-like surface but also achieves surface-environment dual-dimensional active protection through contact killing and photocatalytic antifouling activity. This research provides a new strategy for developing multifunctional integrated antifouling coatings.
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DOI
PubMed
高影响因子
Magnetic Resonance Letters
·
2024
·Vol. 4
·期 2
·100095
·
IF 0
Ligang Xu,Wenda Zhang,Chenjie Lou,Chenxu Geng,Yuxiu Sun,Jie Liu,Yongchao Shi,Huajie Luo,Jipeng Fu,Haiyan Zheng,Mingxue Tang
Solid-state batteries are rising rapidly in response to the fast-increasing energy demand. Metal-organic framework (MOF) loaded with ionic liquids has brought new opportunities for solid-state batteries owing to its good interfacial compatibility and high ionic conductivity. MOF-808 is selected to be filled with Li-contained ionic liquid for structure and ion dynamics investigation using nuclear magnetic resonance (NMR) and X-ray diffraction. This study finds that the introduced ionic liquid would partially soften the matrix of MOF-808 and thus yield amorphous phase. By selective isotope replacement under cycling symmetric 6 Li metal cell, Li + ion is observed to mainly go cross ionic liquid in the open channel of matrix under potential polarization.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2015
·
IF 2.729
Shuang Xia,Xiao-Min Zhang,Kuan Huang,Yong-Le Chen,You-Ting Wu
Physical and electrochemical characteristics of aluminium secondary battery systems based on aluminium anodes, sulfur–carbon cathodes and ionic liquid electrolytes were investigated. Aluminium chloride (AlCl 3 )/triethylamine hydrochloride (Et 3 NHCl) ionic liquids were used as the electrolytes. Toluene, benzene, dichloromethane (DCM), and 1,2-dichlorethane (DCE) were tested as the additives to modify the performance of ionic liquid electrolytes. DCM and DCE were found to be the better choices, with 0.2 as the optimized volume ratio of organic solvent to ionic liquid. The additives have functions of reducing the viscosities and elevating the conductivities of ionic liquid electrolytes, while having little influence on the thermal stability of battery system in normal working temperature range. To assess the electrochemical properties of the electrolytes, galvanostatic charge/discharge studies were performed at the cell voltage of 2.4 V to 0.6 V at a constant current discharge of 15 mA/g. The cell exhibits well-defined discharge voltage plateaus near 1.8 V. A discharging capacity of 113.64 mAh/g at the first cycle is obtained for the cell based on DCM-ionic liquid electrolyte, in comparison with 85.23 mAh/g for the cell based on pure IL. The discharging capacity has the highest value of 131.67 mAh/g, and remains 104.69 mAh/g after 40 cycles. This study indicates that the performance of aluminium secondary battery can be greatly improved by adding a small volume of organic additives to the ionic liquid electrolytes.
研究领域:
电化学
·
能源材料
·
电池技术
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物理化学
·
功能材料
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DOI
高影响因子
CATALYSIS LETTERS
·
2026
·Vol. 156
·期 7
·206
·
IF 2.5
Cen Fanglong,Wang Jiahong,Hu Bing
A magnetic polyoxometalate-based ionic liquid catalyst, [OMIM] 3 PMo 12 O 40 /γ-Fe 2 O 3 @SiO 2 @ZIF-8, was synthesized via a hierarchical core–shell approach and applied in the oxidative desulfurization (ODS) of model oil. Characterization by XRD, FT-IR, SEM-EDS, XPS, and VSM confirmed the immobilization of active species and superparamagnetic properties, facilitating magnetic recovery. Under optimized conditions (50 mg catalyst, 0.5 mL ACN, 50 °C, H 2 O 2 /sulfur molar ratio = 8), 95.48% sulfur removal from dibenzothiophene (DBT, 500 ppm) was achieved within 180 min, with good activity toward 4,6-dimethyldibenzothiophene (4,6-DMDBT). Radical quenching experiments indicated that hydroxyl radicals (•OH) were the dominant reactive species. The catalyst maintained good activity over five cycles with only a slight decline in performance. This work provides an effective strategy for designing multifunctional polyoxometalate ionic liquid catalysts with improved mass transfer, catalytic efficiency, and recyclability for deep oxidative desulfurization. Graphical
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高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2020
·
IF 5.065
Min Wang,Qi Wang,Yuqi Geng,Ning Wang,Yanzhao Yang
In this paper, a novel ionic liquid ([ACh][Tf 2 N]) was synthesized and applied for gold separation from secondary resources, which can be employed as both hydrophobic phase and extractant in the extraction process. By modulating various parameters, the extraction behavior of gold(III) under various conditions was investigated. The result shows that it is more suitable for gold(III) extraction with high salinity and lower acidity, whereas the extraction efficiency can reach 98.98% in 5 min. The anion exchange mechanism between [ACh][Tf 2 N] and gold(III) was proved by UV–vis, FT-IR, 13 C NMR and quantum chemical calculations . The gold(III) in organic phase was easily stripped by 1 mL 0.05 M CS(NH 2 ) 2 /0.1 M HCl. [ACh][Tf 2 N] also possesses excellent selectivity for gold(III) in the mixed metal solutions. Furthermore, its operating conditions combination: ionic liquid dosage, the concentration of HCl and NaCl were optimized to 0.55 g, 0.5 M and 2.5 M by response surface methodology (RSM), respectively. Hence, the [ACh][Tf 2 N] was regarded as a potential extractant for gold recovery from secondary resources.
研究领域:
化学
·
材料科学
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DOI
高影响因子
Inorganic Chemistry Frontiers
·
2022
·Vol. 9
·期 8
·1609-1621
·
IF 7.779
Weizheng Li,Qiang Gao,Ming Shen,Bingyu Li,Chuanli Ren,Jun Yang
N-Doped mesoporous hollow carbon spheres (MHCSs) with different inner structures have attracted increasing attention in energy storage devices due to their low density and high electrical conductivity. Herein, vesicles formed by the molecular self-assembly of the ionic liquid surfactant derived from its unique properties (e.g. lower charge density and π–π interaction between the polar heads) are employed as soft templates to synthesize two kinds of uniform MHCSs (e.g. mesoporous hollow carbon spheres and core–shell structured carbon nanospheres) with high nitrogen (N) doping and various inner layouts including hollow, yolk–shell and Momordica grosvenori-like structures. The elaborate tailoring in the architectures of full sized MHCSs (55 nm–2 μm) endows them with welcome features as electrode materials for symmetrical supercapacitors. In particular, the representative sample of as-prepared N-doped MHCSs exhibits excellent electric double-layer capacitor performance with an electrochemical specific capacitance (308 F g−1 at 0.2 A g−1), superb capacitance retentions (233 F g−1 at 20 A g−1 and 174 F g−1 at 100 A g−1), and high cycling stability (85% capacitance retention at 10 A g−1 after 5000 cycles) in a 6 M KOH electrolyte. The full-sized carbon spheres with tunable architectures are expected to find more applications in catalysis, adsorption, biomedicine and energy storage and conversion devices.
研究领域:
材料科学
·
能源存储与转换
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2023
·
IF 8.4
De Bai,Jiahong Huang,Yiyang Bo,Mi Wang,Wen Yu,Zhenyuan Wang,Chengyu Wu,Jiaheng Zhang
In this study, we synthesized a supramolecular antibacterial ionic salt, [PHMB][Sal], based on poly(hexamethylene biguanide) hydrochloride (PHMB) and sodium salicylate (SS) to endow plastic membranes with antibacterial function. The antibacterial composites of polyelectrolyte-nonsteroidal ionic salt can be blended with polymer materials, such as polybutylene adipate terephthalate (PBAT), because the melting point of the salt can be coordinated with that of the polymer material. The properties of the prepared membranes containing polyelectrolyte-nonsteroidal ionic salts did not change significantly. The mechanical properties and antimicrobial activities of the prepared hydrophobic membranes were investigated. When 3% of [PHMB][Sal] was added, the antimicrobial activities against Gram-positive Staphylococcus aureus and Escherichia coli were 4.12 and 4.30, respectively, and the antibacterial rate was as high as 99.9%, exhibiting extremely excellent antimicrobial properties. Biodegradable [PHMB][Sal] membrane materials are expected to be used in medical environments as well as on packaging surfaces in logistics, which can effectively prevent bacterial cross-infection.
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高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2023
·
IF 6.1
Li Su,Weifang Han,Fang Si,Wenhui Yue,Feng Li,Xinming Zhou,Chuangye Wang,Hui Fu
As a new type of composite ionic conductor, the combination of ionic liquids (ILs) and metal organic framework (MOF) shows a good application prospect. In this study, two ionic liquids, 1,3-dimethylimidazolium tetrafluoroborate ([Dmim][BF 4 ]) and 1-Allyl-3-methylimidazolium dicyanamide ([Amim][N(CN) 2 ]) were successfully combined with MIL-101(Cr). The influence of the amount of ionic liquid and temperature on the electrical conductivity of composite IL@MIL-101(Cr) was explored. The optimal electrical conductivity reached 3.73 × 10 -3 S·cm −1 ([Dmim][BF 4 ]) and 2.69 × 10 -3 S·cm −1 ([Amim][N(CN) 2 ]) respectively when exposed to air at 100 °C. It is worth noting that the ionic conductivity of all composites exhibits linear Arrhenius behavior. Since the activation energies of composites are closely related to the type of ionic liquid and MOF types, these two composites exhibit different activation energies. The reason for the difference in activation energies is analyzed with the aid of quantum chemical calculations.
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高影响因子
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