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中国化学快报（英文版）
中国化学快报（英文版）

梁晓天

月刊

1001-8417

cclbj@imm.ac.cn

010-63165638

100050

北京市先农坛街1号

中国化学快报（英文版）/Journal Chinese Chemical LettersCSCDCSTPCD北大核心SCI
查看更多>>本刊是由中国科协主管、中国化学会主办、中国医学科学院药物所承办的学术期刊，是由著名化学家梁晓天院士主编。是中国化学界通向世界的窗口，内容覆盖化学全领域。本刊的办刊宗旨是“新、快、准”，我们将坚持这个宗旨，力求及时反映化学研究中各个相关领域内的最新进展及热点问题，主要读者群是科研人员、研究生、大学教师。现已被国内外多家数据库收录，如SCI　Search、Chemical Abstract、Research Alert、Chemistry Citation Index、《日本科技文献速报》、万方数据数字化期刊群、中国学术期刊过刊全文数据库、中国学术期刊（光盘版）、中国学术期刊文摘、中文期刊全文数据库、俄罗斯Рж期刊源等。
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    Mediated electron transfer process in α-MnO2 catalyzed Fenton-like reaction for oxytetracycline degradation

    Yiqian JiangZihan YangXiuru BiNan Yao...
    367-372页
    查看更多>>摘要：In Fenton-like oxidation,the catalyst directly influences the reaction mechanism for the degradation of pollutants from water.Here,a α-MnO2 catalyst(OAm-1)was synthesized via a self-assembly method with the assistance of a surfactant.OAm-1 possessed a large specific surface area of 221 m2/g,abundant mesoporous structures and a large proportion of Mn(Ⅲ).Further characterization exhibited that OAm-1 had abundant oxygen vacancies and excellent reducibility and conductivity.The adsorption and catalytic ability of OAm-1 were studied in the degradation of oxytetracycline(OTC)via the activation of hydrogen peroxide(H2O2).Through the radical quenching experiments,electron resonance spectroscopy(EPR),X-ray photoelectron spectroscopy(XPS)and Fourier-transform infrared spectroscopy(FT-IR)analysis,Mn(Ⅲ)of OAm-1 was proved to be the active sites for the chemisorption of OTC.Systematic electrochemical ex-periments and analysis have shown that a process of electron transfer mediated by OAm-1 occurred be-tween the pollutant and H2O2 during a Fenton-like reaction.This work experimentally verifies the elec-tron transfer process dominated nonradical mechanism over α-MnO2,which is helpful for understanding the catalytic mechanism of the Fenton-like oxidation.
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    Synthesis of carbon quantum dots decorating Bi2MoO6 microspherical heterostructure and its efficient photocatalytic degradation of antibiotic norfloxacin

    Meijuan ChenLiyun ZhaoXianjin ShiWei Wang...
    373-378页
    查看更多>>摘要：In this study,three-dimensional microspherical CQDs/Bi2MoO6 heterostructures were synthesized using a simple alcohol-thermal method.It was found that the CQDs/Bi2MoO6 had a large specific surface area of 56.0 m2/g,and the introduction of CQDs extended the light absorption spectrum from 480 nm to 496 nm.When utilizing the synthesized CQDs/Bi2MoO6 composite for photocatalytic degradation of antibiotic nor-floxacin in a water environment,complete decay of norfloxacin and effective removal of total organic car-bon(TOC)were achieved within 30 min.Through the optimization of material synthesis and experimen-tal conditions,the optimal CQDs loading amount was determined as 200 μL,the optimal CQDs/Bi2MoO6 dosage was 0.8 g/L.Moreover,the CQDs/Bi2MoO6 worked well under a wide pH range of 4.4-10.8.The co-existence of HCO3-enhanced the norfloxacin decay,while the presence of Cl-,NO3-,and SO42-slightly retarded it.The synthesized CQDs/Bi2MoO6 had the great potential in removing and mineralizing nor-floxacin in real aquatic environments.
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    Enhanced nitrate removal from groundwater using a conductive spacer in flow-electrode capacitive deionization

    Hongjie GuoQiang WeiYangyang WuWei Qiu...
    379-382页
    查看更多>>摘要：Flow-electrode capacitive deionization(FCD1)represents a promising approach for ion separation from aqueous solutions.However,the optimization of spacer,particularly for nitrate-contaminated groundwa-ter systems,has often been overlooked.This research comprehensively investigates the influence of using a conductive(carbon cloth,CC)spacer on nitrate removal performance within FCDI system,comparing it to a non-conductive(nylon net,NN)spacer.In both CC and NN FCDI systems,it is unsurprisingly that nitrate removal efficiency improved notably with the increasing current density and hydraulic retention time(HRT).Interestingly,the specific energy consumption(SEC)for nitrate removal did not show obvious fluctuations when the current density and HRT varied in both systems.Under the auspiciously optimized process parameters,CC-FCDI attained a 20％superior nitrate removal efficiency relative to NN-FCD1,ac-companied by a notably diminished SEC for CC-FCDI,registering at a mere 28％of NN-FCDI.This great improvement can be primarily attributed to the decrement in FCDI internal resistance after using con-ductive spacer,which further confirmed by electrochemical tests such as linear sweep voltammetry(LSV)and electrochemical impedance spectroscopy(EIS).Upon prolonged continuous nitrate removal at the optimized conditions,the CC-FCDI system achieved a consistent 90％nitrate removal efficiency with a low SEC of 2.7-7.8 kWh/kg NO3-N,underscoring its steady performance.Overall,this study highlights the pivotal importance of careful spacer design and optimization in realizing energy-efficient groundwater treatment via FCDI.
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    Ultrafine nano-copper derived from dopamine polymerization &synchronous adsorption achieve electrochemical purification of nitrate to ammonia in complex water environments

    Xue ZhaoMengshan ChenDan WangHaoran Zhang...
    383-390页
    查看更多>>摘要：Electrochemical-nitrate-reduction-reaction(eNitRR)synthesis of ammonia is an effective way to treat ni-trate wastewater and alleviate the pressure of the Haber-Bosch ammonia production industry.How to develop effective catalysts to electrochemically reduce nitrate to ammonia and purify sewage under com-plex environmental conditions is the focus of current research.Herein,the dopamine polymerization pro-cess and the[(C12H8N2)2Cu]2+complex embedding process were run simultaneously in time and space,and ultrafine Cu nanoparticles(Cu/CN)were effectively loaded on nitrogen-doped carbon after heat treat-ment.Using Cu/CN as the catalyst,the ammonia yield rate and Faradaic efficiency of the electrochemical conversion of NO3 to NH3 are highly 8984.0 μg h-1 mgcat.-1 and 95.6％,respectively.Even in the face of complex water environments,such as neutral media,acidic media,coexisting ions,and actual nitrate wastewater,nitrate wastewater can be effectively purified to form high value-added ammonia.The strat-egy of simultaneous embedding increases the exposure rate of Cu sites,and the support of CN is also beneficial to reduce the energy barrier of*NO3 activation.This study rationally designed catalysts that are beneficial to eNitRR,and considered the situation faced by practical applications during the research stage,reducing the performance gap between laboratory exploration and industrial applications.
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    Enhanced degradation of refractory organics in ORR-EO system with a blue TiO2 nanotube array modified Ti-based Ni-Sb co-doped SnO2 anode

    Yifen HeChao QuNa RenDawei Liang...
    391-395页
    查看更多>>摘要：Recently,a novel 2-electron oxygen reduction reaction(ORR)based electro-oxidation(EO)system was developed,which utilizes a H2O2 generation cathode instead of H2 evolution cathode.A Ti-based Ni-Sb co-doped SnO2(Ti/NATO)anode was selected for efficient degradation of refractory organics and O3 production.The synergistic reaction of O3/H2O2 further accelerated the generation of hydroxyl radicals(·OH)in the ORR-EO system.However,the catalytic activity and long-term effectiveness of the Ti/NATO anode limited the large-scale application of the ORR-EO process.In this study,a blue TiO2 nanotube array(blue-TiO2-NTA)inter-layer was introduced into the fabrication process between the Ti substrate and NATO catalyst layer.Compared to the Ti/NATO anode,the Ti/blue-TiO2-NTA/NATO anode achieved higher efficiency of organic removal and O3 generation.Additionally,the accelerated lifetime of the Ti/blue-TiO2-NTA/NATO anode was increased by 7 times compared to the Ti/NATO anode.When combined with CNTs-C/PTFE air cathode in ORR-EO system,all anodic oxidation and O3/H2O2 processes achieved higher·OH production.Over 92％of TOC in leachate bio-effluent was effectively eliminated with a relatively low energy cost of 45 kWh/t.
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    Molecular engineering towards dual surface local polarization sites on poly(heptazine imide)framework for boosting H2O2 photo-production

    Zhenchun YangBixiao GuoZhenyu HuKun Wang...
    396-400页
    查看更多>>摘要：The selective 2e-ORR reaction on polymeric carbon nitride framework is one of the most promising approaches for solar-driven hydrogen peroxide production.Poly(heptazine imide)(PHI)as a class of K+-incorporated crystalline carbon nitride framework,is highly active for photocatalytic H2O2 production.An upgrade on the H2O2 photoproduction performance of PHI is realized and the mechanistic insights are revealed in this work.By photochemical reaction,the electron withdrawing groups of hydroxyl group and cyano group are grafted on the surface of PHI frameworks.The dual polarization sites on the sur-face contribute significantly to the enhancement of the exciton dissociation.The optimized PHI with dual polarization sites exhibits a remarkable photocatalytic H2O2 production performance,which is 2 times of the active pristine PHI.Most importantly,the photochemical reaction method is generally applicable to improve the exciton dissociation of a wide range of polymeric carbon nitride frameworks with vari-ous structure and compositions;and the thiourea-derived polymeric carbon nitride framework with dual surface polarization sites exhibits a remarkable photocatalytic performance with a high H2O2 production rate of 40.5 mmol h-1 g-1.
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    Removal and fluorescence detection of antibiotics from wastewater by layered double oxides/metal-organic frameworks with different topological configurations

    Zhiqiang LiuQiang GaoWei ShenMeifeng Xu...
    401-405页
    查看更多>>摘要：Owing to the serious potential side-effects on the environment and human health,the rapid detection and removal of antibiotics have become an important research focus.In this work,four zinc-based metal-organic frameworks(MOFs)with different functional groups,i.e.,Zn-MOF,Zn-MOF-CH3,Zn-MOF-NO2,Zn-MOF-COOH,were utilized for the construction of LDO/MOF composite materials with a nickel-iron-cobalt-based layered double oxide,NiFeCo-LDO.The results showed that the LDO/MOF composites not only had high sensitivity in detecting sulfonamide and quinolone antibiotics,but also had an appreciable ability to adsorb them from wastewater.The maximum adsorption capacities of all the four types of LDO@Zn-MOFs to all antibiotics can at least reach 150 mg/g,and the limits of detection in relation to all four antibiotics were at least as low as 100μg/L.Our work suggested the dual-function extraction performance can be attributed to the synergistic effects between the LDO and the MOFs.Moreover,the strong ferromagnetism derived from the LDO provided great convenience for the separation and regeneration of the LDO/MOF composites.
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    Theoretical design of polyazole based ligands for the separation of Am(Ⅲ)/Eu(Ⅲ)

    Lingling SuQunyan WuCongzhi WangJianhui Lan...
    406-412页
    查看更多>>摘要：The extraction of radioactive minor actinides(An(Ⅲ))from lanthanides(Ln(Ⅲ))is an extremely impor-tant step in nuclear waste reprocessing.Designing ligands with high-performance actinide-selectivity re-mains an essential task.Recent works have reported that some polyazole based ligands exhibit good An(Ⅲ)/Ln(Ⅲ)separation performance.Herein,we first evaluated the effects of different polyazole side chains on the Am(Ⅲ)/Eu(Ⅲ)selectivity by exploring three pyridine-derived polyazole ligands L1,L2 and L3 with 1,2,4-triazole,1,2,3-triazole,and pyrazole side chains,respectively,using scalar relativistic theoretical methods.The coordination structures,bonding properties and thermodynamic behaviors of AmL(NO3)3 and EuL(NO3)3 complexes were investigated,which clarifies that the side chains do affect the electronic structure of ligand and its selectivity for Am(Ⅲ)/Eu(Ⅲ)ions.Moreover,L1 with 1,2,4-triazole side chains exhibited the highest selectivity for Am(Ⅲ)over Eu(Ⅲ)while the lowest complexation ability for metal ions among the three pyridine-derived polyazole ligands.Subsequently,we designed a new ligand L4 con-taining 1,2,4-triazole side chains and a preorganized phenanthroline backbone.Theoretically,such a new ligand was verified to show stronger complexation ability and higher selectivity for Am(Ⅲ)/Eu(Ⅲ)ions than L1.This work clarifies the complexation nature of polyazole based ligands with Am(Ⅲ)/Eu(Ⅲ)ions and provides design strategies for highly efficient polyazole based ligands for An(Ⅲ)/Ln(Ⅲ)separation.
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    Chronic sleep deprivation induces alterations in DNA and RNA modifications by liquid chromatography-mass spectrometry analysis

    Tian FengYun-Ling GaoDi HuKe-Yu Yuan...
    413-417页
    查看更多>>摘要：Sleep deprivation(SD)is a widespread issue that disrupts the lives of millions of people.These effects ini-tiate as changes within neurons,specifically at the DNA and RNA level,leading to disruptions in neuronal plasticity and the dysregulation of various cognitive functions,such as learning and memory.Nucleic acid epigenetic modifications that could regulate gene expression have been reported to play crucial roles in this process.However,there is a lack of comprehensive research on the correlation of SD with nucleic acid epigenetic modifications.In the current study,we aimed to systematically investigate the landscape of modifications in DNA as well as in small RNA molecules across multiple tissues,including the heart,liver,kidney,lung,hippocampus,and spleen,in response to chronic sleep deprivation(CSD).Using liquid chromatography-tandem mass spectrometry(LC-MS/MS)analysis,we characterized the dynamic changes in DNA and RNA modification profiles in different tissues of mice under CSD stress.Specifically,we ob-served a significant decrease in the level of 5-methylcytosine(5mC)and a significant increase in the level of 5-hydroxymethylcytosine(5hmC)in the kidney in CSD group.Regarding RNA modifications,we observed an overall increased trend for most of these significantly changed modifications across six tis-sues in CSD group.Our study sheds light on the significance of DNA and RNA modifications as crucial epigenetic markers in the context of CSD-induced stress.
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    Phosphorus-silicon-integrated electrolyte additive boosts cycling performance and safety of high-voltage lithium-ion batteries

    Mei-Chen LiuQing-Song LiuYi-Zhou QuanJia-Ling Yu...
    418-424页
    查看更多>>摘要：Safety and energy density are significant for lithium-ion batteries(LIBs),and the flammable organic elec-trolyte is one of the most critical causes of the safety problem of LIBs.Although LiNi0.8Co0.1Mn0.1O2(NCM811)cathode with high capacity can improve the energy density,the interface stability between NCM811 cathode and electrolytes needs to be improved.Herein,we report a multifunctional additive,diethyl(2-(triethoxysilyl)ethyl)phosphonate(DETSP),which can suppress the flammability of the elec-trolyte and enhance the cycling stability of NCM811 cathode with a capacity retention of 89.9％after 400 cycles at 1 C,while that of the blank electrolyte is merely 61.3％.In addition,DETSP is compati-ble well with the graphite anode without impairing the electrochemical performances.Significantly,the performance and safety of NCM811/graphite full cells are also improved.Experimental and theoretical re-sults demonstrate that DETSP can scavenge acidic byproducts and is beneficial to form a stable cathode-electrolyte interface(CEI).Accordingly,DETSP can potentially be an effective solution to ameliorating the safety of the commercial electrolyte and improving the stability of high-voltage cathodes.
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