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Chemical Research in Chinese Universities 2021年第3期37卷 639-646页

作者： YAN Liuqing FU Jiaxu LI Shuang zhang jinlong WANG Shuang GU Qiang zhang Yumin LIN Feng College of Chemistry Jilin UniversityChangchun130012P.R.China School of life Sciences Jilin UniversityChangchun130012P.R.China

An efficient and facile method was introduced for the synthesis of benzimidazoles in this *** optimum reaction conditions were determined.A series of benzimidazoles bearing phenolic hydroxyl(2a—2t)were synthesized in moderate to excellent yields starting from differently substituted hydroxyl benzaldehyde and 4-position substituted o-phenylenediamine via nu-cleophilic addition in the presence of catalyst Na2S2O5 under microwave irradiation ***,effects of the catalyst,molar ratio of reactants,reaction temperature and solvent were *** optimal reaction condition was *** effect of DMF and EtOH solvent on the reaction was *** synthesized compounds were characterized by FTIR,HRMS,1H NMR and 13C NMR ***,the bacteriostatic activities of the synthesized compounds were evaluated with ciprofloxacin and itraconazole as a positive control,*** 2b,2n,2q and 2r exhibited some antibacterial *** lowest MIC of antibacterial activity of compound 2b was 32µg/***,the luminescence property of compound 2b was *** antibacterial activity of compound 2b,along with their good fluorescence performance highlighted the potential of these compounds as lead structures and owned fluorescence trace for further study towards the development of novel drugs and functional mechanisms in living organisms.

关键词： Benzimidazole Microwave irradiation Solvent effect Antimicrobial activity Luminescence property

Large Dynamical Axion Field in Topological Antiferromagnetic Insulator Mn2Bi2Te5

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Chinese Physics Letters 2020年第7期37卷 100-106页

作者： jinlong zhang Dinghui Wang Minji Shi Tongshuai Zhu Haijun zhang Jing Wang State Key Laboratory of Surface Physics Department of PhysicsFudan UniversityShanghai 200433China National Laboratory of Solid State Microstructures School of PhysicsNanjing UniversityNanjing 210093China Collaborative Innovation Center of Advanced Microstructures Nanjing 210093China Institute for Nanoelectronic Devices and Quantum Computing Fudan UniversityShanghai 200433China

The dynamical axion field is a new state of quantum matter where the magnetoelectric response couples strongly to its low-energy magnetic *** is fundamentally different from an axion insulator with a static quantized magnetoelectric *** dynamical axion field exhibits many exotic phenomena such as axionic polariton and axion ***,these effects have not been experimentally confirmed due to the lack of proper topological magnetic *** analytic models and first-principles calculations,here we predict a series of van der Waals layered Mn2Bi2Te5-related topological antiferromagnetic materials that could host the long-sought dynamical axion field with a topological *** also show that a large dynamical axion field can be achieved in antiferromagnetic insulating states close to the topological phase *** further propose the optical and transport experiments to detect such a dynamical axion *** results could directly aid and facilitate the search for topological-origin large dynamical axion field in realistic materials.

关键词： materials. transition. field.

Graphene-Based Photo-Fenton Catalysts for Pollutant Control

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Transactions of Tianjin University 2021年第2期27卷 110-126页

作者： Yan Bao Qingyun Yan Jiahui Ji Bocheng Qiu jinlong zhang Mingyang Xing Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research CenterSchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China Jiangsu Key Laboratory of Pesticide Sciences Department of ChemistryCollege of SciencesNanjing Agricultural UniversityNanjing 210095China

Water pollution is a global environmental issue with multi-dimensional infl uences on human *** strategies,such as photo-Fenton reaction,have been employed to remove recalcitrant ***-dimensional(2D)graphene and its threedimensional(3D)confi gurations have attracted considerable attention as emerging carbon-based catalysts in photo-Fenton fi elds owing to their alluring properties in electron transfer,reactant adsorption,and light *** review summarizes the recent developments in 2D and 3D graphene-based catalysts for photo-Fenton *** structures,characteristics,activity,and mechanisms are *** conclusions and outlooks are proposed for the profound understanding of challenges and future directions.

关键词： Photo-Fenton Graphene Pollutant control Aerogel Hydrogel

"Small amount for multiple times" of H_(2)O_(2) feeding way in MoS_(2)-Fex heterogeneous fenton for enhancing sulfadiazine degradation

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Chinese Chemical Letters 2022年第3期33卷 1365-1372页

作者： Zhuan Chen Cheng Lian Kai Huang Jiahui Ji Qingyun Yan jinlong zhang Mingyang Xing Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research CenterFrontiers Science Center for Materiobiology and Dynamic ChemistryInstitute of Fine ChemicalsSchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization East China University of Science and TechnologyShanghai 200237China

In recent years, MoS_(2) catalyzed/cocatalyzed Fenton/Fenton-like systems have attracted wide attention in the field of pollution control, but there are few studies on the effect of H_(2)O_(2) feeding way on the whole Fenton process. Here, we report a new type of composite catalyst (MoS_(2)-Fe_(x)) prepared in a simple way with highly dispersed iron to provide more active sites. MoS_(2)-Fe_(x) was proved to possess selectivity for singlet oxygen (^(1)O_(2)) in effectively degrading sulfadiazine with a wide pH adaptability (4.0~10.0). Importantly, the mechanism of the interaction between H_(2)O_(2) and MoS_(2) on the Fenton reaction activity was revealed through the combination of experiment and density functional theory (DFT) calculations. Compared to the traditional “a large amount for one time” feeding way of H_(2)O_(2), the “small amount for multiple times” of H_(2)O_(2) feeding way can increase the degradation rate of sulfadiazine from 36.9% to 91.1% in the MoS_(2)-Fe_(x) heterogeneous Fenton system. It is demonstrated that the “small amount for multiple times” of H_(2)O_(2) feeding way can reduce the side reaction of decomposition of H_(2)O_(2) by MoS_(2) and effectively improve the utilization rate of H_(2)O_(2) and the stability of MoS_(2)-Fe_(x). Compared with Fe_(2)O_(3)^(-)based Fenton system, MoS_(2)-Fe_(x) can significantly save the amount of H_(2)O_(2). Compared with nano-iron powder, the formation of iron sludge in MoS_(2)-Fe_(x) system was significantly reduced. Furthermore, long-term degradation test showed that the MoS_(2)-Fe75/H_(2)O_(2) system could maintain the effectiveness of degrading organic pollutants for 10 days (or even longer). This study has a guiding significance for the large-scale treatment of industrial wastewater by improved Fenton technology in the future.

关键词： Fenton reaction Co-catalytic Molybdenum sulfide Hydrogen peroxide Singlet oxygen

Defect electrons accelerate iron cycle of novel Fe-based Fenton:Long-term effective quinoline degradation

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Chinese Chemical Letters 2023年第6期34卷 598-605页

作者： Weikang Hu Ming Yang Qingyun Yan Jiahui Ji Yan Bao jinlong zhang Mingyang Xing Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research CenterFrontiers Science Center for Materiobiology and Dynamic ChemistryInstitute of Fine ChemicalsSchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization East China University of Science and TechnologyShanghai 200237China

Heterogeneous Fenton has been widely used in the disposal of organic pollutants,however,slow regeneration of≡Fe(II)remains limitation for its practical application of long-term ***,we come up with a novel Fe-based heterogeneous Fenton catalyst named as FeS_(x)O_(y)-X(X is the ratio of ethylene glycol to N,N-dimethylformamide).With the help of the abundant defect electrons in Sulfur vacancies,≡Fe(Ⅱ)regeneration on the surface of FeS_(x)O_(y)-1:1 was accelerated,resulting in a stable proportion of≡Fe(Ⅱ)on the surface,which maintained continuously stable generation of hydroxyl radical(·OH)and singlet oxygen(^(1)O_(2)).Thus,without any organic reagents or cocatalysts,FeS_(x)O_(y)-1:1 based Fenton system achieved effective long-term degradation of 560 mg/L quinoline within only 7 days,which was evidently better than reported Fe S and SV-Fe S_(2)(SV:Sulfur vacancy).The system had excellent adaptability to water quality and the COD removal rate of biochemical wastewater was as high as 79.8%.

关键词： Fenton reaction Quinoline Defect electron Iron cycle Heterogeneous catalyst

Organic Fluorescent Molecule with High Solid State Lumines- cent Efficiency and Protonation Stimuli-response

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Chinese Journal of Chemistry 2013年第11期31卷 1418-1422页

作者： Suqian Ma Jibo zhang jinlong Chen Lijuan Wang Bin Xu Wenjing Tian State Key Laboratory of Supramolecular Structure and Materials Jilin University Changchun Jilin 130012 China

A novel organic fluorophor with high solid state luminescent efficiency based on 1,4-bis（2,2-di（pyridin-2-yl）- vinyl）benzene （BDP2VB） was designed and synthesized. It emits faintly in solution, but becomes a strong emitter in the aggregate state, demonstrating its aggregation induced emission （AIE） property. According to the crystal struc- ture analysis, J-type aggregation was formed in the packing mode of the molecule, which was demonstrated to be beneficial to gain high fluorescent quantum efficiency in solid state. Additionally, the emission color of BDP2VB can change dramatically in solid state as well as in solution by the protonation stimuli.

关键词： organic fluorescent molecule high solid state luminescent efficiency stimuli-response

Sustainable activation of peroxymonosulfate by the Mo(Ⅳ)in MoS_(2) for the remediation of aromatic organic pollutants

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Chinese Chemical Letters 2020年第10期31卷 2803-2808页

作者： Mengmeng Du Qiuying Yi Jiahui Ji Qiaohong Zhu Huan Duan Mingyang Xing jinlong zhang Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Key Laboratory for Advanced Materials and Institute of Fine ChemicalsSchool of Chemistry&Molecular EngineeringEast China University of Science&TechnologyShanghai 200237China School of Chemistry and Chemical Engineering Southwest UniversityChongqing 400715China

Although MoS_(2) has been proved to be a very ideal cocatalyst in advanced oxidation process(AOPs),the activation process of peroxy mono sulfate(PMS)is still inseparable from metal ions which inevitably brings the risk of secondary pollution and it is not conducive to large-scale industrial *** this study,the commercial MoS_(2),as a durable and efficient catalyst,was used for directly activating PMS to degrade aromatic organic *** commercial MoS_(2)/PMS catalytic system demonstrated excellent removal efficiency of phenol and the total organic carbon(TOC)residual rate reach to 25%.The degradation rate was significantly reduced if the used MoS_(2) was directly carried out the next cycle experiment without any ***,the commercial MoS_(2) after post-treated with H2 O_(2) can exhibit good stability and recyclability for cyclic degradation of ***,the mechanism for the activation of PMS had been investigated by density functional theory(DFT)*** renewable Mo4+exposed on the surface of MoS_(2) was deduced as the primary active site,which realized the direct activation of PMS and avoided secondary *** into account the reaction cost and efficient activity,the development of commercial MoS_(2) catalytic system is expected to be applied in industrial wastewater.

关键词： Peroxymoosulfate Molybdenum disulfide Surface reaction Recyclability Sulfur vacancies Density functional theory

The effect of an electric field on the thermomechanical damage of nodular defects in dielectric multilayer coatings irradiated by nanosecond laser pulses

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Light(Science & Applications) 2013年第1期2卷 135-142页

作者： Xinbin Cheng jinlong zhang Tao Ding Zeyong Wei Hongqiang Li Zhanshan Wang Key Laboratory of Advanced Micro-Structure Materials Ministry of EducationShanghai 200092China Institute of Precision Optical Engineering School of Physics Science and EngineeringTongji UniversityShanghai 200092China

Thermomechanical damage of nodules in dielectric multilayer coatings that are irradiated by nanosecond laser pulses has been interpreted with respect to mechanical properties and electric-field ***,the effect of electric-field enhancement in nodular damage,especially the influence of electric-field distributions,has never been directly demonstrated through experimental results,which prevents the achievement of a clear understanding of the damage process of nodular ***,a systematic and comparative study was designed to reveal how electric-field distributions affect the damage behavior of *** obtain reliable results,two series of artificial nodules with different geometries and film absorption characteristics were prepared from monodisperse silica *** establishing simplified geometrical models of the nodules,the electric-field enhancement was simulated using a three-dimensional finite-difference time-domain ***,the damage morphologies of the artificial nodules were directly compared with the simulated electric-field intensity *** both series of nodules,the damage morphologies reproduced our simulated electric-field intensity distributions very *** results indicated that the electric-field distribution was actually a bridge that connected the nodular mechanical properties to the final thermomechanical *** of the damage mechanism of nodules was deepened by obtaining data on the influence of electric-field distributions on the damage behavior of nodules.

关键词： electric field nanosecond-pulse-laser damage nodular defects thin films

Fluorinated inverse opal carbon nitride combined with vanadium pentoxide as a Z-scheme photocatalyst with enhanced photocatalytic activity

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Chinese Chemical Letters 2022年第8期33卷 3797-3801页

作者： Ningkai Ding Bin Chen Liang Zhou Lingzhi Wang Yongdi Liu jinlong zhang Juying Lei State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process East China University of Science and TechnologyShanghai 200237China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research CenterSchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization East China University of Science and TechnologyShanghai 200237China

In this work,Z-scheme V_(2)O_(5) loaded fluorinated inverse opal carbon nitride(IO F-CN/V_(2)O_(5)) was synthesized as a product of ternary collaborative modification with heterostructure construction,element doping and inverse opal *** catalyst presented the highest photocatalytic activity and rate constant for degradation of typical organic pollutants Rhodamine B(RhB)and was also used for the efficient removal of antibiotics,represented by norfloxacin(NOR),sulfadiazine(SD)and levofloxacin(LVX).Characterizations confirmed its increased specific surface area,narrowed bandgap,and enhanced visible light utilization *** mechanism study including band structure study and electron paramagnetic resonance(EPR)proved the successful construction of Z-scheme heterojunction,which improved photogenerated charge carrier migration and provide sufficient free radicals for the degradation *** combination of different modifications contributed to the synergetic improvement of removal efficiency towards different organic pollutants.

关键词： Carbon nitride Inverse opal structure Vanadium pentoxide Fluorinate Organic pollutants degradation

Fluorine Effects for Tunable C-C and C-S Bond Cleavage in Fluoro-Julia-Kocienski Intermediates

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CCS Chemistry 2021年第6期3卷 1678-1689页

作者： Lei Kang Yongjia Lin Zeng Gao jinlong zhang Huameng Yang jinlong Qian Qian Peng Gaoxi Jiang State Key Laboratory for Oxo Synthesis and Selective Oxidation Center for Excellence in Molecular SynthesisSuzhou Research Institute of LICPLanzhou Institute of Chemical Physics(LICP)Chinese Academy of SciencesLanzhou 730000 State Key Laboratory of Element-Organic Chemistry College of ChemistryNankai UniversityTianjin 300071 University of Chinese Academy of Sciences Beijing 100049

Classical Julia-Kocienski fluoroolefination represents an indispensable platform for the construction of ***,its complex multistep mechanistic manifold along with the unrevealed intrinsic“fluorine effect”in nucleophilic reactions might be responsible for the difficult control of the original stereoselectivity and is thus often ambiguous to ***,a novel strategy involving the defined fluorine effect and new reaction mechanism was developed for tunable C-C and C-S bond cleavage,providing a versatile avenue for highly stereoselective and easily scalable construction of diverse *** functional theory(DFT)investigations indicate the fluorine substituents can activate the C-C and C-S bond leading toα-elimination by antiphase orbital *** rate-limiting step were calculated via fourmembered transition states with ring *** the sterically eclipsed repulsion and secondary orbital interaction affect the stereoselectivity.

关键词： fluorine effect monofluoroalkene Julia-Kocienski fluoroolefination DFT calculation frontier molecular orbital