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Nano Research 2011年第6期4卷 550-562页

作者： hongmei sun Linyuan Cao Lehui Lu State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China Graduate School of the Chinese Academy of Sciences Beijing 100039 China

A simple one step solvothermal strategy using non-toxic and cost-effective precursors has been developed to prepare magnetite/reduced graphene oxide （MRGO） nanocomposites for removal of dye pollutants. Taking advantage of the combined benefits of graphene and magnetic nanoparticles, these MRGO nanocomposites exhibit excellent removal efficiency （over 91% for rhodamine B and over 94% for malachite green） and rapid separation from aqueous solution by an external magnetic field. Interestingly, the performance of the MRGO composites is strongly dependent on both the loading of Fe304 and the pH value. In addition, the adsorption behavior of this new adsorbent fits well with the Freundlich isotherm and the pseudo-second-order kinetic model. In further applications, real samples--including industrial waste water and lake water--have been treated using the MRGO composites. All the results demonstrate that the MRGO composites are effective adsorbents for removal of dye pollutants and thus could provide a new platform for dye decontamination.

关键词： Magnetic nanoparticles graphene nanocomposites dye pollutants removal

Becoming a Ruin： Breaking into the First Emperor＇s Necropolis

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Frontiers of Literary Studies in China-Selected Publications from Chinese Universities 2017年第2期11卷 352-374页

作者： hongmei sun Department of Modern and Classical Languages George Mason University Fairfax VA22030 USA

This article focuses on representations of Emperor Qin Shihuang＇s necropolis, an example of the tomb as a special form of landscape in Chinese literature and visual culture. Unlike remnants of other historic structures, the tomb is built to be an enclosed space and is contained in its own system of time. If a tomb is broken into, its system of time/space is fractured, and it becomes a ruin from the point of view of both its own historical function and its larger contemporary context. Both Chinese and American popular culture have a demonstrated fascination with breaking into Emperor Qin Shihuang＇s tomb. This article provides an analysis of three groups of texts from China and the United States, including Lilian Lee＇s novella The Terracotta Warrior and its screen adaptations, the 2005 film The Myth, directed by Stanley Tong, and its TV adaptation, and American texts including the 2001 NBC TV movie The Lost Empire, directed by Peter MacDonald, and the 2008 film The Mummy： Tomb of the Dragon Emperor, directed by Rob Cohen. After demonstrating how the special chronotope of Qin Shihuang＇s tomb directly affects the major thematic developments of these texts, this article then examines and compares how the different groups of texts confront the topics of death and immortality, excavation vs. preservation, and good vs. evil in ways that reflect the politics of representation.

关键词： archeological excavation chronotope ruin value Qin Shihuang,terracotta warrior tomb

Preparation of Al-Al_3Ti in situ composites by direct reaction method

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Rare Metals 2006年第1期25卷 32-36页

作者： YU Huashun CHEN hongmei sun Liming MIN Guanghui The Key Laboratory of Liquid Structure and Heredity of Materials Ministry of Education Shandong University Jinan 250061 China

Al-Al3Ti composites were prepared by a direct reaction method, in which Al3Ti was formed by the reaction of Ti and Al in aluminum alloy melt. The morphology of Al3Ti changes apparently from the fine particle, needle-like to large block with the increase of Al3Ti content. The addition of magnesium can markedly change the morphology of Al3Ti and reduce their size. Short rod-like Al3Ti was formed and homogeneous distribution was obtained with the addition of 3 wt.% Mg. The effect of Al3Ti and Mg on the microstructure of Al-Al3Ti composites and the mechanism were also discussed.

关键词： Al3Ti in situ composites direct reaction method microstructure

Ionic iron(III) complex of aryloxo-linked bis(imidazolium)cations: efficient and recyclable catalyst for aryl Grignard cross-coupling of alkyl chlorides

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Chinese Science Bulletin 2014年第34期59卷 4728-4734页

作者： Qingling Zhang Zhuang Li hongmei sun Qi Shen Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and MaterialsScience Soochow University

A novel phenol-linked bis(imidazolium) salt,H3LCl2(L = O-4-C(CH3)3-C6H2-2,6-di[CH2{C(NCHCHNAr)}]2, Ar = 2,6-diisopropylphenyl, 1), was designed and used to prepare an ionic iron(III) complex [H2L][Fe Cl4](2).Complex 2 was a highly efficient catalyst for aryl Grignard cross-coupling of alkyl chlorides bearing ***, complex 2 was reusable and could be reused in at least eight times without significant loss in catalytic activity.

关键词：高效催化剂交叉偶联铁(Ⅲ) 阳离子烷基氯咪唑基格络合物

Redox-triggered dearomative[5+1]annulation of indoles with O-alkyl ortho-oxybenzaldehydes for the synthesis of spirochromanes

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Organic Chemistry Frontiers 2022年第6期9卷 1668-1674页

作者： Lianyi Cao Fangzhi Hu hongmei sun Xiaomei Zhang Shuai-Shuai Li Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province Chengdu Institute of Organic ChemistryChinese Academy of SciencesChengduChina University of Chinese Academy of Sciences BeijingChina College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural UniversityQingdao 266109China

The dearomative[5+1]annulation of 2-methylindoles with new five-membered synthons O-alkyl orthooxybenzaldehydes was developed unprecedentedly through cascade[1,5]-hydride transfer/dearomativecyclization in HFIP for the synthesis of spirochromanes bearing the 2-methylindolenine ***,the dual alkylation of the methyl group of 2-methylindolenines was achieved by sequential operation through the redox neutral[5+1]annulation with the second five-membered synthon N-alkylortho-aminobenzaldehyde,providing the chromane and tetrahydroquinoline fused spiroindolenines ingood ***,the auxiliary group that facilitates the hydride transfer process could be simplyremoved.

关键词： benzaldehyde alkyl indole

Development of Fe(Ⅲ)-containing ether-functionalized imidazolium ionic liquids for aryl Grignard cross-coupling of alkyl halides

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Chinese Science Bulletin 2013年第30期58卷 3624-3629页

作者： WANG LinLin LU Bing ZHU AiDi sun hongmei SHEN Qi The Key Laboratory of Organic Synthesis of Jiangsu Province College of ChemistryChemical Engineering and Materials ScienceSoochow University

A series of Fe(Ⅲ)-containing imidazolium-based ionic liquids containing ether substituents,including[C3OMim][FeCl4](1,[C3OMim]=1-(2-methoxyethyl)-3-methylimidazolium),[C3OiPim][FeCl4](2,[C3OiPim]=1-isopropyl-3-(2-methoxyethyl)imidazolium),[C3OBim][FeCl4](3,[C3OBim]=1-butyl-3-(2-methoxyethyl)imidazolium),[(C3O)2im][FeCl4](4,[(C3O)2im]=1,3-bis(2-methoxyethyl)imidazolium),[C3OMim][FeBr4](5)and[(C3O)2im][FeBr4](6),were prepared and characterized by elemental analysis,Raman spectroscopy and electrospray ionization mass *** catalytic performances of 1–6 and related Fe(III)-based catalysts in the cross-coupling of aryl Grignard reagents with alkyl halides bearing-hydrogens were studied,revealing that mono(ether)functionality improves the catalytic activity and that bis(ether)functionality improves the *** simply decanting the product contained in the ethereal layer,complex 4,which containing bis(ether)-functionalized imidazolium cation,could be successfully recycled seven times.

关键词：交叉耦合离子液体咪唑基乙醚 Fe 卤代烷官能化电喷雾电离质谱

Enolate chelating N-heterocyclic carbene complexes of Fe(Ⅱ): Synthesis, structure and their catalytic activity for ring-opening polymerization of ε-caprolactone

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Chinese Science Bulletin 2007年第23期52卷 3193-3199页

作者： WANG YongSheng sun hongmei TAO XuePing SHEN Qi ZHANG Yong Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry and Chemical Engineering Suzhou University Suzhou 215123 China

The reaction of anhydrous FeBr2 with two equivalents of anionic N-heterocyclic carbene (NaL1 and NaL2), which are generated in situ by the reaction of the corresponding salt [4-R-C6H4COCH2{CH- (NCHCHNiPr)}Br] (R = OCH3, H2L1Br, 1; R = F, H2L2Br, 2) with two equivalents of NaN(SiMe3)2, affords bis-ligand Fe(II) complexes of L12Fe (3) and L22Fe (4) in high yield, respectively. Attempt to synthesize mono-ligand Fe(II) bromide by the 1:1 molar ratio of NaL to FeBr2 is unsuccessful, and the same com- plexes of 3 and 4 were obtained. Both 3 and 4 have been depicted by elemental analysis and X-ray structure determination. Preliminary studies show that both 3 and 4 can be used as single-component catalyst for the ring-opening polymerization of ε-caprolactone, and the catalytic activity of 3 is higher than that of 4.

关键词：铁复合物碳烯杂环化学

An efficient and recyclable iron(III)-containing imidazolium salt catalyst for cross-coupling of aryl Grignard reagents with alkyl halides

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Chinese Science Bulletin 2012年第16期57卷 1953-1958页

作者： YAN ChunHui WANG LinLin GAO HuanHuan sun hongmei SHEN Qi The Key Laboratory of Organic Synthesis of Jiangsu Province College of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride, [DIPrim]Cl, was used to produce a novel iron(III)-containing imidazolium salt [DIPrim][FeCl 4 ], which included a N,N-diarylimidazolium cation (R = 2,6-diisopropylphenyl), [DIPrim] + , and tetrachloroferrate(III) anion, [FeCl 4 ]. This compound was an effective and easy-to-use catalyst for the cross-coupling of aryl Grignard reagents with primary and secondary alkyl halides bearing -hydrogens. After simply decanting the cross-coupling product in the ether layer, [DIPrim][FeCl 4 ] could be reused in at least four successive runs without significant loss of catalytic activity.

关键词：格氏试剂咪唑盐催化剂交叉偶联可回收卤代烷铁交叉耦合

Tumor-targeted self-assembled micelles reducing PD-L1 expression combined with ICIs to enhance chemo-immunotherapy of TNBC

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Chinese Chemical Letters 2024年第2期35卷 305-310页

作者： Hongda Zhu Kai Ma Rui Ruan Chaobo Yang Aqin Yan Jing Li Qi Yu hongmei sun Mingxing Liu hongmei Zheng Jing Gao Xiaofang Guan Zhu Dai Yao sun Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province) Key Laboratory of Fermentation Engineering (Ministry of Education)National “111” Center for Cellular Regulation and Molecular PharmaceuticsSchool of Food and Biological EngineeringHubei University of TechnologyWuhan 430068China Hubei Cancer Hospital Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430079China National Key Laboratory of Green Pesticide College of ChemistryCentral China Normal UniversityWuhan 430079China Key Laboratory of Medical Optics Suzhou Institute of Biomedical Engineering and TechnologyChinese Academy of SciencesSuzhou 215163China Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science Ministry of EducationQingdao University of Science and TechnologyQingdao 266000China

Immune checkpoint inhibitors(ICIs)therapy targeting programmed cell death ligand 1(PD-L1)and programmed death protein 1(PD-1)had exhibited significant clinical benefits for cancer treatment such as triple negative breast cancer(TNBC).However,the relatively low anti-tumor immune response rate and ICIs drug resistance highlight the necessity of developing ICIs combination therapy strategies to improve the anti-tumor effect of ***,the immunomodulator epigallocatechin gallate palmitate(PEGCG)and the immunoadjuvant metformin(MET)self-assembled into tumor-targeted micelles via hydrogen bond and electrostatic interaction,which encapsulated the therapeutic agents doxorubicin(DOX)-loaded PEGCG-MET micelles(PMD)and combined with ICIs(anti-PD-1 antibody)as therapeutic strategy to reduce the endogenous expression of PD-L1 and improve the tumor immunosuppressive *** results presented that PMD integrated chemotherapy and immunotherapy to enhance antitumor efficacy in vitro and in vivo,compared with DOX or anti-PD-1 antibody for the therapy of *** micelles might be a potential candidate,which could remedy the shortcomings of antibody-based ICIs and provide synergistic effect to enhance the antitumor effects of ICIs in tumor therapy.

关键词： Immunotherapy Tumor-targeted Self-assembled micelles Metformin Reducing PD-L1 expression TNBC

[Na(THF)_（2）(μ_（2）-η^(5)-Cp)(η^(5),η^(5),η^(1)- Cp_(3)Yb)(THF)]_(n):The synthesis and X-ray structure of an anionic organolanthanide polymer formed via self-assembly

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Chinese Science Bulletin 2005年第17期50卷 1843-1845页

作者： HUANG Dan sun hongmei LIU Taiqi XU Fan SHEN Qi The Key Laboratory of Organic Synthesis of Jiangsu Province Department of Chemistry and Chemical Engineering Suzhou University Suzhou 215006 China

Cp2Yb·2THF reacts with CpNa in 1:1 molar ratio in THF at 40℃ for 2 h, and the in situ generated ani-onic divalent complex NaYbCp3(THF)n reacts further with an excess of CpH at 40℃ for 48 h, after work-up, affording the trivalent anionic ytterbium complex [Na(THF)2(μ2-η5-Cp) (η5,η5,η1-Cp3Yb)(THF)]n (1) by oxidation reaction of Cp2Yb with CpH. Crystal structure determination reveals that com-plex 1 has one-dimension polymeric chains of distinct Na(THF)2(μ2-η5-Cp)(η5,η5,η1-Cp3Yb)(THF) units, which were formed by the coordination of the bridging Cp ligand with Cp3Yb·THF and Na(THF)2 in η5,η5 mode via self-assembly.

关键词： X-射线有机原子序数阴极自集合系统镱元素复合晶体结构