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Preparation of Amino-functionalized guanidinium ionic liquid-Modified Magnetic Materials and Application in Solid-Phase Extraction of Pollutants in Water

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Journal of Analysis and Testing 2022年第4期6卷 401-410页

作者： Li-Zhen Qiao Chun-Mei Yu Rui-Ting Sun State Key Laboratory of Fine Chemicals Dalian University of TechnologyDalian116023China School of Chemical Engineering Dalian University of TechnologyPanjin124221China

In the present work,a novel amino-functionalized hexaalkylguanidinium chloride ionic liquid was prepared and grafted on the surface of magnetic materials through polyethyleneimine to enrich polycyclic aromatic hydrocarbons in water in combination with HPLC equipped with an ultraviolet *** effect of several parameters on the extraction efficiency was investigated,including the desorption solvent,the amounts of sorbents,the extraction time,the desorption time and the salt *** the optimized conditions,the method validation exhibited good linearity with correlation coefficients above 0.994 in the range of 0.2-300 ng/mL and low limits of detection and quantification of 0.05 and 0.2 ng/mL,***,relative recoveries were in the range of 80-120%,and the intra-day and inter-day repeatability were good with the relative standard deviations of less than 20%.Finally,the guanidinium ionic liquid modified magnetic materials were applied for the extraction of polycyclic aromatic hydrocarbons from real water samples to demonstrate the utility,and the results show that the proposed method has good prospect for effective enrichment and determination of pollutants in water.

关键词： guanidinium ionic liquid Magnetic solid-phase extraction Amino-functionalized Polycyclic aromatic hydrocarbons

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guanidinium Iodides-based ionic liquids: Synthesis and Application for Dye-sensitized Solar Cells(DSSCs)

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Chemical Research in Chinese Universities 2009年第1期25卷 40-42页

作者： ZHENG Ren-feng WU Mao-cheng DUAN Hai-feng ZHANG Yu WEI Xiao LUO Xu-yang LIN Ying-jie College of Chemistry Jilin University Changchun 130012 P. R. China

A series of guanidinium ionic liquids（GILs） was designed, synthesized, and used as electrolytes for dye-sensitized solar cells（DSSCs）. The effect of electrolytes containing GILs on the photovoltaic performance of DSSCs was investigated. It is demonstrated that these GILs are promising for being used as electrolytes for DSSCs and a conversion efficiency of 4.1% can be obtained under AM 1.5 sun light irradiation.

关键词： guanidinium ionic liquid Dye-sensitized solar cells(DSSCs) Electrolyte

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Microwave-assisted Palladium-micelle-catalyzed Suzuki Cross-coupling Reaction in Water

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Chemical Research in Chinese Universities 2011年第4期27卷 589-591页

作者： LIN Li LI Sheng-hai JIANG Ri-hua Key Laboratory of Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China College of Chemistry Jilin University Changehun 130012 P. R. China Department of Dermatology China-Japan Union Hospital of Jilin University Changehun 130033 P. R. China

A microwave-accelerated Suzuki coupling procedure was developed via guanidinium ionic liquids（GILs） stabilized *** Pd micelle/GILs play a key role in enhancing the activity,due to the highly dispersed Pd active sites and the phase transfer function of GILs,which ensures the adsorption of reactants and facilitates the translation of the intermediates to the surface of the micelle.

关键词： Microwave irradiating Pd micelle Suzuki reaction guanidinium ionic liquid

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