SENSORS AND ACTUATORS B-CHEMICAL
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2025
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IF 7.7
Tao Liao,Dan Hou,Hao Huang,María Belén Camarada,Xiaoning Liao
Herein, a novel ratiometric molecularly imprinted electrochemical sensor (MIP-RECS) based on Ag nanoparticles (AgNPs) and ionic liquid (IL) co-modified Ti 2 NTx (AgNPs@Ti 2 NT x @IL) was developed for the determination of patulin (PAT). Firstly, the AgNPs@Ti 2 NT x @IL nanocomposite, was prepared by an in situ reduction and self-assembled method, and then, was cast on the glassy carbon electrode (GCE) to build an electrochemical interface with excellent conductivity and high surface area. After that, the MIP was deposited on the nanocomposite modified GCE by the electro-polymerization technique, with thionine (Thi) and PAT as functional monomer and template molecules. In the sensing platform, the oxidation peaks generated by Thi and AgNPs were used as reference and probe signal, respectively. The introduction of reference effectively eliminates the influence of the matrix effect. At the same time, the oxidation signal of the Ag probe is greatly improved by the high conductivity and large surface area of the AgNPs@Ti 2 NT x @IL nanocomposite. Therefore, the MIP-RECS presented a wide linear range, a very low low limit of detection (LOD), together with high selectivity and excellent repeatability. Additionally, the linearity ranges and LODs of the sensor can be controlled by the amount of Ag, highlighting its robustness in different types of real samples. Furthermore, this sensing model can be used to sensitively detect other residues with poor redox activity, such as imidacloprid and catechol, highlighting its versatility and universality.
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ACS Nano
·
2019
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IF 13.903
Yuwei Zhao,Longtao Ma,Yongbin Zhu,Peng Qin,Hongfei Li,Funian Mo,Donghong Wang,Guojin Liang,Qi Yang,Weishu Liu,Chunyi Zhi
Aqueous zinc-ion batteries (ZIBs) possess energy storages advantages, including low cost, high safety, and durable lifetimes. Materials are worth exploring to achieve high-performance batteries. Although Bi2S3 is predicted to be highly capable for energy storage, it has never been used in aqueous ZIBs due to the structure degradation. Herein, we apply Bi2S3 in aqueous ZIBs and develop an ionic liquid enhanced poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) coating to perfectly stabilize the Bi2S3 electrode, which plays three roles of providing high conductivity, inhibiting grain pulverization and sulfur dissolution, and acting as an artificial solid electrolyte interphase. The synergistic merits of the desirable capacity of Bi2S3 and a versatile polymer provide a capacity of 275 mAh g–1 and excellent cycling stability up to 5300 cycles with 95.3% retention. A reversible conversion mechanism into hexagonal ZnS is revealed by investigation of a variety of spectra. The prepared quasi-solid battery based on a high concentration salt electrolyte/polyacrylamide hydrogel exhibits a high energy density (315 Wh kg–1) and long-term cyclability over 5300 cycles. For demonstration, a single battery can power a digital hygrometer thermometer for more than 14 h 48 min. This work highlights a ground-breaking demonstration of incorporating structural integrity with stable interfacial chemistry.
研究领域:
储能与转换
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电化学
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材料科学
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电池技术
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FOOD CHEMISTRY
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2022
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IF 9.231
Rui Chen,Xiaoqiang Qiao,Fengmao Liu,Xuehui Chen
The theoretical screening and design of green solvents to reduce organic solvents and to develop green and efficient sample pretreatment methods have attracted extensive attention. Here, benzimidazoles (BZDs) with potential reproductive toxicity were used as target compounds, and amino acid ionic liquids (AAILs) were designed and selected via a theoretical calculation. With the functionalized AAIL as monomers, and POSS as the crosslinking agent, novel specific magnetic nanoparticles (Fe 3 O 4 @SiO 2 @MAPs@AAIL-POSS) were prepared and used to develop the magnetic dispersive solid-phase extraction (MDSPE) of trace BZDs from fruit juice and human serum. In the evaluation of the method, Fe 3 O 4 @SiO 2 @MAPs@AAIL-POSS showed specific adsorption, recyclable ability, high adsorption efficiency, a good recovery rate, and a low coefficient of variation. In addition, the adsorption behavior of Fe 3 O 4 @SiO 2 @MAPs@AAIL-POSS on BZDs was verified by investigating the kinetic and thermodynamic of the adsorption process. The study design provides ideas for green rapid detection methods of other food pollutants.
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PubMed
高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2023
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IF 4.1
Ting Huang,Xiaoyun Lei,Shuqiang Wang,Chenchen Lin,Xiaoping Wu
A facile in-situ ionothermal synthesis strategy for fabrication of ionic liquids/metal−organic frameworks (MOFs) (ILs@ZIF-8) nanocomposites hybrid monolith has been proposed to facilitate highly effective capillary microextraction (CME) of ultra-trace microcystins (MCs) in environmental waters. The ZnO nanoparticles (ZnO-NPs) were initially introduced into a precursor polymer monolith, and acted as the metal sources and anchoring seeds to construct ILs@ZIF-8 nanocomposites hybrid monolith via a nanoparticle-directed in-situ growth route in confined imidazolium ionic liquids. Detailed characterization based on scanning electron microscopy (SEM), X-ray diffraction (XRD) and N 2 adsorption-desorption isotherms confirmed that both the morphology and porous structure of ZIF-8 were finely tuned by the incorporation of ILs, which acted as solvents and structure directing agent. The confinement of ILs in ZIF-8 framework endows the ILs@ZIF-8 hybrid monolith additional adsorption sites and satisfied water stability for the synergistic enhancement of adsorption efficiency of MCs via multiple interactions (including π-π stacking, hydrogen bonding, hydrophobic and electrostatic interactions). Coupling ILs@ZIF-8 hybrid monolith-based CME to LC-MS enabled an efficient and sensitive analysis of MCs in surface waters with ultra-low detection limits (LOD ≤ 1.4 ng L −1 ) and satisfactory recoveries (70.2%−107.0%). This study showed great potential for feasible design and fabrication of ILs@MOFs composites with synergistic and tunable structures toward efficient sample preparation applications.
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Molecular Catalysis
·
2023
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IF 4.6
Shuxing Zhang,Jiali Zheng,Zhihui Li,Xiaoshu Ding,Yanji Wang
Herein, we reported a green catalytic reaction system for the synthesis of 5-amino-1-pentanol with furfural and ionic liquid hydroxylamine salt as the initial raw material. In addition, the method can obtain 2-furonitrile and furfurylamine in high yields. The reaction system comprises three new reactions, including the reaction of furfural with ionic liquid hydroxylamine salt to synthesize 2-furonitrile, the hydrogenation of 2-furonitrile to prepare furfurylamine, and the hydrogenolysis of furfurylamine to prepare 5-amino-1-pentanol. For the synthesis of 2-furonitrile, ionic liquid hydroxylamine salt (NH 2 OH) 2 ·[HSO 3 - b - mim ]·HSO 4 was prepared. The ionic liquid as co-solvents, catalysts, and hydroxylamine stabilizer has recovery and reusability. For the hydrogenation of 2-furonitrile to furfurylamine, high-efficiency Ru/g-C 3 N 4 catalyst was prepared. For the hydrogenolysis of furfurylamine to 5-amino-1-pentanol, high-efficiency Pt/ZrO 2 catalyst was prepared. Finally, the yield of 5-amino-1-pentanol based on furfural was 48.7%. A potential pathway for preparing drugs from biomass has been identified in this work.
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JOURNAL OF SEPARATION SCIENCE
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2022
·Vol. 45
·期 14
·2621-2631
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IF 3.614
Pei-Ying Li,Jia-Hui Zhao,Nian Li,Bo Liu,Wen-Ge Zhang,Zi-Fan Zhu,Chao Yan,Ning-Lan Xiao,Hua-Jie Lai
Recently, pharmaceuticals and personal care products in the water environment exhibited potential risks to both human and aquatic organisms. In order to improve the sensitivity and accuracy of pharmaceutical detection, the polyimidazolyl acetate ionic liquid was synthesized by Radziszewski reaction and coated on cellulose filter papers as a thin-film extraction phase for extraction of non-steroidal anti-inflammatory drugs from water. The attenuated total reflection-infrared spectrometry, thermogravimetric analysis, and scanning electron microscope analyses demonstrated that the polyimidazolyl acetate ionic liquid was successfully prepared and attached to the surface of the cellulose filter paper through chemical bonding. The adsorption capacity of the homemade thin-film extraction material for the four non-steroidal anti-inflammatory drugs was greater than 8898 ng/cm 2 under the optimum conditions, and the desorption rate was over 90%. Then, a paper-based thin-film extraction phase-high-performance liquid chromatography-tandem mass spectrometry method was established for the extraction of non-steroidal anti-inflammatory drugs in water. This method provided limits of detection and limits of quantification were in the range of 0.02–0.15 and 0.17–0.50 μg/L, respectively. Hence, the obtained thin-film extraction phase showed excellent recovery and reproducibility for the target non-steroidal anti-inflammatory drugs with carboxyl groups from water.
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EUROPEAN POLYMER JOURNAL
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2022
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IF 5.546
Lei Wang,Jing Chen,Ye Sha,Imtiaz Hussain,Bo Yu,Linlin Wu,Yijun Shi,Qun Gu,Zhenyang Luo,Xiaofeng Ma
Ion gels, polymer networks swollen with ionic liquid (IL), are ideal materials for application in flexible electronic devices. It remains a challenge to fabricate an ion gel with photo-healing, high mechanical properties, fatigue resistance and shear resistance. Herein, a well-defined diblock copolymer polystyrene- b -poly(methyl acrylate- r -7-(2′-methacryloyloyloxyethoxy)-4-methylcoumarin) (PS- b -P(DMA- r -MAOEMC), brief name: SMM, PS: IL-phobic segment and P(DMA- r -MAOEMC): IL-philic segment) was synthesized by reversible addition fragmentation chain transfer (RAFT) polymerization. For comparison, a random copolymer P(DMA- r -MAOEMC) (MM) also be prepared. In dilute solution, the SMM can form spherical micelles with PS-core surrounded by P(DMA- r -MAOEMC) corona chains in an IL, 1-ethyl-3-methylimidazolium bis(trifluoromethane sulfone)amide ([C 2 mim][NTf 2 ]). In a suitable polymer concentration, the SMM and MM can form ion gels in [C 2 mim][NTf 2 ] under 365 nm UV light irradiation through photo-dimerization of coumarin groups in corona MM polymer chains of spherical micelles and photo-dimerization of coumarin groups in MM random polymer chains, respectively. Compared with the MM ion gel, the SMM ion gel has high mechanical properties, shear resistance and relatively high fatigue resistance. Under 254 nm UV light irradiation, photo-induced gel to jammed micelles transition for the SMM ion gel and photo-induced gel to sol transition for the MM ion gel occur due to photo-cleavage of dimer in polymer chains. Photo-induced jammed micelles - gel transition for the SMM ion gel and photo-induced sol - gel transition for the MM ion gel are reversible by alternating 365 nm and 254 nm UV light irradiation, whereby photo-healable materials can be fabricated. Compared to the MM ion gel, the SMM ion gel has high photo-healing efficiency. The electrochemical property of the SMM ion gel can be recovered completely after photo-healing.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2022
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IF 9.965
Qi Fan,Mengjiao Yi,Chunxiao Chai,Wenwen Li,Ping Qi,Jihui Wang,Jingcheng Hao
Hypothesis Stemming from their unique superiorities, Ti 3 C 2 -MXenes have emerged as versatile 2D materials for a myriad of appealing applications. However, two crucial issues are detrimental to maximize the inherent properties of MXenes for further specific developments, i.e. restacking problem and environmental instability. Experiments Herein, we develop an effective strategy, constructing water-in-ionic liquid (W/IL) Pickering emulsions with further polymerization of the continuous phase, to fabricate oxidation stability enhanced Ti 3 C 2 -MXene based porous materials. It is the first time to utilize a brand new platform between the immiscible IL and water for MXene nanosheets to assemble with guest species serving as building blocks for macromonoliths. Findings The prepared porous materials can provide elastic hollow-sphere structures derived from emulsion template, for wearable piezoresistive sensor with high sensitivity, excellent accuracy and favorable reproducibility. Intriguingly, ILs as dispersion and surface modification with polymeric ionic liquids (PILs) play indispensable roles in ameliorating oxidation stability of MXenes in porous materials, by virtue of quenching reactive oxygen species (ROS) and forming protective layer through the capping effect. Furthermore, the processed aerogels after supercritical drying can selectively absorb several organic solvents owing to their high hydrophobicity , abundant porosity and sufficient mechanical strength . All results indicate that the innovative strategy can simultaneously circumvent two major drawbacks of MXenes for the first time, and shed light on the opportunity to further enrich their practical applications by constructing multifunctional platform.
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高影响因子
NEW JOURNAL OF CHEMISTRY
·
2022
·Vol. 46
·期 16
·7695-7703
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IF 3.925
Qi Wu,Changfeng Zhao,Qinzhong Wang,Jing Liu
This study proposes the efficient separation of Au(III)/Pd(II)/Pt(IV)/Rh(III) through the 2-mercaptobenzothiazole-functionalised ionic liquid ([C6mim][2MBT]) using a cloud point extraction system. Direct cloud point extraction of Au(III) (about 99.9%) was realised without involving any functionalised ionic liquids. A significant enhancement of the Pd(II) extraction performance was found by adding rationally constructed [C6mim][2MBT]. Consequently, a fairly high extraction percentage of about 99.4% was obtained. However, further advancement of the proposed cloud point extraction showed that it could not be applied for the preconcentration of Pt(IV) and Rh(III) without adding stannous chloride, which plays a critical role in the segregation and could be adjusted by changing the hydrochloric acid concentration. Under the optimised conditions, the Rh(III) extraction process shows a high yield percentage (ca. 83.0%), where the majority of Pt(IV) was enriched in the aqueous phase. In addition, the underlying possible extraction mechanism was investigated using UV-vis, FT-IR and TEM measurements, which indicated that TX-114 acted as a solvent for the extracted metals. The developed procedure reveals efficient direct Au(III)/Pd(II)/Pt(IV)/Rh(III) separation using [C6mim][2MBT] via cloud point extraction.
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JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
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2022
·Vol. 331
·期 9
·3905-3913
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IF 1.754
Guo Zong,Chu Taiwei
In this work, a separation and purification process of U(VI), Zr(IV) and I 2 from various fission products in nitric acid solution by 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([C 4 mim][NTf 2 ]) and dibutyl-3-(3-methylimidazolium)propylphosphoramide bis(trifluoromethanesulfonyl)imide-task specific ionic liquid (phosphoramide-TSIL) was investigated. The phosphoramide-TSIL was found to reduce ligand loss compared to dibutyl propylphosphoramidate by total organic carbon testing (TOC). The stripping of U(VI), Zr(IV) and I 2 could be achieved by guanidine carbonate solution, oxalic acid solution and sodium hydroxide solution, respectively. The phosphoramide-TSIL/[C 4 mim][NTf 2 ] showed good irradiation stability and recyclability. Phosphoramide-TSIL has the potential to be applied for separation and purification in the actual radioactive environment. Graphical abstract
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JOURNAL OF MOLECULAR STRUCTURE
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2022
·
IF 3.841
Lulu Wang,Jing Lu,Yujia Wang,Haiyan Wang,Jilin Wang,Tieqiang Ren
In this study, a series of MIL-101-X catalysts were prepared by confining acidic ionic liquid phosphotungstate in MIL-101 nanocages using the organic electron-rich N-heterocyclic compound as a chemical bridge and the aforementioned catalysts were used for the oxidation of cyclohexene to adipic acid. During the aforementioned process of post-synthetic modification, a Bronsted acidic ionic liquid phosphotungstate ([C 3 SO 3 Hnhm] 3 PW 12 O 40 ) was synthesized in the nanocage of MIL-101. The research results reveal that the yield of adipic acid for the cyclohexene oxidation catalyzed by the constructed MIL-101-X catalyst was up to 78.16% in solvent-free condition. And its catalytic activity is not significantly reduced after six cycles. The novel catalyst synthesized in this paper combines the common advantages of ionic liquid phosphotungstate and MIL-101 nanocage microenvironment to facilitate the diffusion of reactants and their interaction with the catalytic activity center. This research will provide a new idea to solve the problem in terms of the shortage of efficient catalysts in the field of catalytic oxidation of cyclohexene to adipic acid.
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FUEL
·
2022
·
IF 8.035
Chong Chen,Yukun Zhang,Qiuhao Li,Yunlong Wang,Jun Ma
A series of N -doped carbons coupled with ultra-micropores were synthesized through a self-templated strategy by employing the guanidine-embedded poly(ionic liquid) as the versatile precursor. The crosslinking agent (N,N’-methylene bisacrylamide (MBA)) and the ionic liquid monomer (1-(4-vinylbenzyl)-tetramethylguanidinium chloride) distributed in the polymeric frameworks exerted the functions of not only the pore-forming agents, but also the nitrogen sources during pyrolysis. With the cooperation of these two components, the derived carbon materials were endowed with well-developed microporosity and evenly-dispersed nitrogen species. Besides, the divinylbenzene (DVB) was also an indispensable moiety to maintain the skeleton stability in the initial heating stage. Inspiringly, when the carbonization temperature and amount of KOH activator were selected as 700 °C and 2 mol/L, a large specific surface area of 1606.1 m 2 /g, a high ultra-micropore (<0.7 nm) content of 0.4314 cm 3 /g along with abundant pyrrolic-N sites were attained, contributing to the appealing performance for CO 2 capture. The adsorption capacity of the CTMG-700 achieved 3.95 mmol/g, and the selectivity toward CO 2 /N 2 mixture (V CO2 /V N2 = 15/85) was 20.4 at 25 °C and 1 bar. This strong affinity for CO 2 molecules was credited to the superposition of van der Waals’ force inside narrow ultra-micropores as well as the hydrogen-bonding and acid-base interactions originated from pyrrolic-N. In addition, the CTMG-700 also demonstrated satisfactory cyclic adsorption performance under mild regeneration conditions. The present work was intended to uncover a new strategy to construct advanced carbonaceous materials via tailoring the microstructure of poly(ionic liquid)-based precursors for gas separation or specific applications.
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危险品化学品经营许可证（带存储）