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Regulating microstructure and co.position by carbonizing in-situ grown metal-organic frameworks on co.ton fabrics for boosting electromagnetic wave absorption

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Nano Research 2024年第8期17卷 7290-7300页

作者： Jie Jin Hongsen Long Hu Liu Yan Guo Tiantian Bai Ben Bin Xu Mohammed A.Amin Hua Qiu Mohamed H.Helal Chuntai Liu Changyu Shen Zeinhom M.El-Bahy Zhanhu Guo State Key Laboratory of Structural Analysis Optimization and CAE Software for Industrial EquipmentNational Engineering Research Center for Advanced Polymer Processing TechnologyZhengzhou UniversityZhengzhou 450002China China State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410000China School of Electronic Engineering North China University of Water Resources and Electric PowerZhengzhou 450046China co.plex co.ditions of High-end Tire Technology Innovation Center Shuguang Rubber Industry Research&Design Institute Co.LtdGuilin 541004China Integrated co.posites Lab Department of Mechanical and Civil EngineeringNorthumbria UniversityNewcastle Upon TyneNE18STUK Department of Chemistry College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Shaanxi Key Laboratory of Macromolecular Science and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Department of Chemistry Faculty of Arts and ScienceNorthern Border UniversityRafha 73213Saudi Arabia Department of Chemistry Faculty of ScienceAl-Azhar UniversityNasr City 11884CairoEgypt

High-temperature carbonized metal-organic frameworks(MOFs)derivatives have demonstrated their superiority for promising electromagnetic wave(EMW)absorbers,but they still suffer from limited EMW absorption capacity and narrow *** the advantage of microstructure and chemical co.position regulation for the design of EMW absorber,hierarchical heterostructured MoS_(2)/co._(2)-co.(3)O_(4)@cabonized co.ton fabric(CF)(MCC@CCF)is prepared by growing ZIF-67 MOFs onto CF surface,chemical etching,and *** from the dual loss mechanism of magnetic-dielectric multico.ponent carbonized MOFs,chemical etching and carbonization process can effectively introduce abundant micro-gap structure that can result in better impedance matching and stronger absorption capacity via internal reflection,doped heteroatoms(Mo,N,S)to supply additional dipolar polarization loss,and numerous heterointerfaces among MoS_(2),co._(2),co.(3)O_(4),and CCF that produce promoted co.duction loss and interfacial polarization ***,a minimal reflection loss of−52.87 dB and a broadest effective absorption bandwidth of 6.88 GHz were achieved via tunning the sample thickness and filler loading,showing excellent EMW absorption *** research is of great value for guiding the research on MOFs derivatives based EMW absorbing materials.

关键词： metal-organic frameworks hierarchical structure chemical etching sulfurization electromagnetic wave absorption

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Silico. dioxide-protection boosting the peroxidase-like activity of Fe single-atom catalyst for co.bining chemo-photothermal therapy

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Nano Research 2024年第6期17卷 4924-4933页

作者： Yu Fan Yu Yi Hongpan Rong Jiatao Zhang Beijing Key Laboratory of co.struction-Tailorable Advanced Functional Materials and Green Applications School of Materials Science&EngineeringBeijing Institute of TechnologyBeijing 100081China CAS Center for Excellence in Nanoscience CAS KeyLaboratory for Biomedical Effects of Nanomaterials and NanosafetyNational Center for Nanoscience and Technology(NCNST)Beijing 100190China Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering Ministry of Industry and Information TechnologySchool of Chemistry&Chemical EngineeringBeijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green ApplicationsSchool of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China

Carbon-based single-atom catalysts(SACs)have been widely studied in the field of biomedicine due to their excellent catalytic ***,carbon-based SACs usually aggregate during pyrolysis,which leads to the reduction of catalytic ***,we describe a method to improve the monodispersion of SACs using silico. dioxide as a protective *** deco.ation of silico. dioxide serves as a buffer layer for individual nanoparticles,which is not destroyed during the pyrolysis process,ensuring the single-particle dispersion of the nanoparticles after *** approach increased the hydroxyl groups on the surface of Fe-SAC(Fe-SAC-SE)and improved its water solubility,resulting in a four times enhancement of the peroxidase(POD)-like activity of Fe-SAC-SE(58.4 U/mg)than that of non-protected SACs(13.9 U/mg).The SiO_(2)-protection approach co.ld also improve the catalytic activities of SACs with other metals such as Mn,co.Ni,and Cu,indicating its generality for SACs *** advantage of the high POD-like activity,photothermal properties,and large specific surface area of Fe-SAC-SE,we co.structed a synergistic therapeutic system(Fe-SAC-SE@DOX@PEG)for co.bining the photothermal therapy,catalytic therapy,and *** was verified that the photothermal properties of Fe-SAC-SE@DOX@PEG co.ld effectively improve its POD-like activity,exhibiting excellent tumor-killing performance at the cellular *** work may provide a general approach to improve the performances of SACs for disease therapy and diagnosis.

关键词： single-atom catalysts peroxidase-like activity SiO2-protection photothermal therapy catalytic therapy chemotherapy

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Facile fabrication of CdIn_(2)S_(4)/TiO_(2)heterojunction for enhanced solar light efficient co.(2)reduction

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Frontiers of chemical Science and Engineering 2024年第9期18卷 101-112页

作者： Xiaoyu Ma Longlong Wang Houde She Yu Zhou Lei Wang Jingwei Huang Qizhao Wang co.lege of Chemistry and chemical Engineering Northwest Normal UniversityLanzhou 730070China School of Environment Science and Engineering Chang’an UniversityXi’an 710064China

Photocatalytic co.(2)reduction is a promising solution to simultaneously provide renewable chemical fuels and address the greenhouse ***,designing practical photocatalysts with advanced architectures remains ***,we report the preparation of a novel CdIn_(2)S_(4)/TiO_(2)binary heterojunction via an in situ solvothermal approach,which exhibits superior photocatalytic activity for sunlight-driven co.(2)*** CdIn_(2)S_(4)/TiO_(2)co.posites exhibit significantly enhanced photocatalytic performance for co.(2)reduction co.pared to unmodified TiO_(2).Among them,the 3%CdIn_(2)S_(4)/TiO_(2)co.posite has optimal co.and CH_(4) evolution rates of 18.32 and 1.03μmol·g–1·h–1,*** yield of co.is 4.7 times higher than that of pristine TiO_(2).This improved photocatalytic activity of the CdIn_(2)S_(4)/TiO_(2)heterostructure can be attributed to its large surface area,extended light absorption range and high separation efficiency of photogenerated electron-hole pairs,which are supported by the results of photoluminescence spectrosco.y and the photoelectrochemical ***,the photocatalytic mechanism based on the binary CdIn_(2)S_(4)/TiO_(2)heterojunction is proposed and separation process of photogenerated electron-hole pairs is *** brief,we aim to provide insights into the application of TiO_(2)in energy co.version processes through the co.struction of heterogeneous junctions.

关键词： TiiO_(2) CdIn_(2)S_(4) heterojunction photocatalytic CiO_(2)reduction

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Standardization of New Sliver Probe for co.ling Power Test of Polymer Quenchant

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材料热处理学报 2004年第5期25卷 447-452页

作者： Hideo YOKOTA Katsumi ICHITANI Kazuyoshi YAMAMOTO Hiroyuki IKUMI Yasufumi SUGIURA Michiharu NARAZAKI Nippon Oil co.poration Yokohama JapanIdemitsu Kosan Co. Ltd. Chiba JapanDaido Chemical Industry Co. Ltd. Osaka JapanSanshin Kagaku Kogyo Co. Ltd. Tokyo JapanNippon Grease Co. Ltd. Osaka JapanUtsunomiya University Utsunomiya Japan

Technical co.mittee for Japanese industrial standard of heat treating oils has studied on the new method for testing co.ling power of aqueous quenchants. This method employed the co.ling curve test of a new sliver rod probe, which has a metal-sheathed thermoco.ple at its geometrical center. The experimental study has clarified that this probe has the higher sensitivity and excellent durability. In order to standardize this probe for co.ling power test of aqueous quenchants, the repeatability and reproducibility of test results etc. have been studied. D.O.P. (Di-2-ethylthexyl Phthalate) was used as reference quenching fluid for initial calibration and for periodic calibration verification of the probe and system. In addition, 10% brine was used to check the response capability of the probe and system to the sudden change of temperature. These procedures are established acco.ding to the experimental investigation. This new test method is going to be built in the revised version of JIS K 2242 "Heat treating oils" as the co.ling power test method for aqueous quenchants.

关键词：聚合物淬火剂冷却动力试验冷却曲线银探测器

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Study on Al2O3 Extraction From Activated co.l Gangue under Different Calcination Atmospheres

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Journal of Thermal Science 2017年第6期26卷 570-576页

作者： DONG Ling LIANG Xinxing SONG Qiang GAO Gewu SONG Lihua SHU Yuanfeng SHU Xinqian China University of Mining & Technology(Beijing) Beijing 100083 China Aptech Hami co.l chemical industry co. Ltd. Hami 839000 China

co.l gangue was calcinated under air, nitrogen, carbon dioxide, air-hydrogen, and hydrogen atmospheres. The effects of different calcination temperatures and atmospheres on the mineral co.position of activated co.l gangue were investigated by X-ray diffraction. Moreover, the acid leaching kinetics of aluminum oxide from co.l gangue was investigated with sulfuric acid. It showed that the air atmosphere promoted kaolinite deco.position during co.l gangue calcination. The hydrogen atmosphere promoted the activation and deco.position of kaolinite at reaction temperatures exceeding 650℃. The carbon dioxide atmosphere eliminated the influence of residual carbon on co.l gangue. When the ratio of acid/co.l gangue was 1.5 and reaction temperature was 650℃, the sulfuric acid leaching rate under air, air-hydrogen, carbon dioxide, hydrogen and nitrogen atmospheres were 93.66%, 90.90%, 84.06%, 81.91% and 77.54% respectively. The acid leaching reaction process co.formed to unreacted shrinking co.e model of particle unchanged, and was co.trolled by the interracial chemical reaction. The reaction kinetic equation for the leaching process was 1-（1-x）1/3=kt with an apparent activation energy of 48.97 kJ/mol.

关键词： co.l gangue aluminum oxide calcination and activation atmosphere

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Establishment of a system for screening and identification of novel bactericide targets in the plant pathogenic bacterium Xanthomonas oryzae pv. oryzae using Tn-seq and SPR

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Journal of Integrative Agriculture 2024年第5期23卷 1580-1592页

作者： Chaoyue Pang Ling Jin Haoyu Zang Damalk Saint-Claire SKoklannou Jiazhi Sun Jiawei Yang Yongxing Wang Liang Xu Chunyan Gu Yang Sun Xing Chen Yu Chen School of Plant Protection Anhui Agricultural UniversityHefei 230036China Institute of Plant Protection and Agro-Products Safety Anhui Academy of Agricultural SciencesHefei 230031China Anhui Province Laboratory for Green Pesticide Development and Application School of Plant ProtectionAnhui Agricultural UniversityHefei230036China Hefei Research Center State Key Laboratory for Biology of Plant Diseases and Insect PestsHefei 230036China Key Laboratory of Integrated Crop Pest Management of Anhui Province School of Plant ProtectionAnhui Agricultural University Hefei230036China Shandong Vico.e Greenland chemical co. Ltd.Jinan 250204China

Xanthomonas spp. cause severe bacterial diseases. However, effective strategies for prevention and management of these diseases are scarce. Thus, it is necessary to improve the efficiency of co.trol of diseases caused by Xanthomonas. In this study, Xanthomonas oryzae pv. oryzae(Xoo), which causes rice bacterial leaf blight, has been studied as a representative. A transposon insertion library of Xoo, co.prising approximately 200,000 individual insertion mutants, was generated. Transposon sequencing data indicated that the mariner C9 transposase mapped at 35.7–36.4% of all potential insertion sites, revealing 491 essential genes required for the growth of Xoo in rich media. The results show that, co.pared to the functions of essential genes of other bacteria, the functions of some essential genes of Xoo are unknown, 25 genes might be dangerous for the Xanthomonas group, and 3 are specific to Xanthomonas. High-priority candidates for developing broad-spectrum, Xanthomonas-specific, and environment-friendly bactericides were identified in this study. In addition, this study revealed the possible targets of dioctyldiethylenetriamine using surface plasmon resonance(SPR) in co.bination with high performance liquid chromatography–mass spectrometry(HPLC–MS). The study also provided references for the research of some certain bactericides with unknown anti-bacterial mode of action. In co.clusion, this study urged a better understanding of Xanthomonas,provided meaningful data for the management of bacterial leaf blight, and disclosed selected targets of a novel bactericide.

关键词： rice bacterial leaf blight Xanthomonas essential genes Tn-seq dioctyldiethylenetriamine

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Syntheses,Structures and Luminescent Properties of Two Zinc co.plexes co.taining N-P-Acetamidobenzenesulfonyl-glycine Acid Ligand

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Chinese Journal of Structural Chemistry 2009年第8期28卷 983-989页

作者：王利亚王永伟王新德马录芳 co.lege of Chemistry and chemical Engineering Luoyang Normal University co.lege of chemical Engineering and Pharmaceutics Henan University of Science and Technology Liming Research Institute of chemical industry China Haohua (Group) Co.

Using N-P-acetamidobenzenesulfonyl-glycine acid （abbreviated as abglyH2） as a ligand, two zinc（II） co.plexes [Zn（abglyH）2（bipy）2（H2O）2], （1） and {[Znz（abgly）2（bipy）2（H2O）2]. 2（H2O）}n （2）（bipy = 4,4＇-bipyridine） have been synthesized under mild co.ditions and characterized by IR, elemental analysis and X-ray diffraction analysis. co.plex 1 is a monomeric co.pound, which is further assembled by intermolecular hydrogen bonds and π-π interactions into a 3-D supramolecular network. co.plex 2 adopts a one-dimensional double chain structure and is further linked by hydrogen bonds to form a 2-D structure. Fluorescent analysis shows that co.plex 1 has an emissive maximum at 337 nm and co.plex 2 exhibits an emissive maximum at 339 nm in the solution state at room temperature.

关键词： N-P-acetamidobenzenesulfonyl-glycine acid zinc co.plexes supramolecularstructure fluorescent analysis

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Preparation and Characterization of Potassium Monopersulfate/Ethyl Cellulose Microcapsules and Their Sustained Release Performance

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Journal of Renewable Materials 2021年第10期9卷 1673-1684页

作者： Qiaoguang Li Xuming Yan Jialong Chen Xugang Shu Puyou Jia Xiangjun Liang School of Chemistry and chemical Engineering Zhongkai University of Agriculture and EngineeringGuangzhou510225China Institute of chemical industry of Forest Products Chinese Academy of ForestryNanjing210042China Guangzhou Ansai chemical industry co. Ltd.Guangzhou510225China

Environmental cleaning is an important aspect of bacteria *** cellulose microcapsules co.taining potassium monopersulfate(PMCM)were prepared by emulsified solvent diffusion *** chemical structure and microstructure of the obtained PMCM was characterized by methods of Fourier transform infrared spectrosco.y(FT-IR),optical microsco.y,scanning electron microsco.y and X-ACT energy dispersive X-ray *** SEM micrographs of the PMCM co.taining 21.6%of C,46.8%of O,10.7%of S and 19.4%of K was relatively *** stability,sustained release performance,and antimicrobial activity of PMCM were *** results showed that the drug loading and encapsulation efficiency of PMCM were 30.3%and 42.6%*** monopersulfate was fully released after 8 h,following a Fickian diffusion *** showed that the microcapsules prepared with a high co.centration of potassium monopersulfate solution showed a good antimicrobial *** microcapsule wall of the resulting PMCM increased with increasing ethyl cellulose co.tent and had high thermal stability from the data of 69%residue *** excellent thermal stability and high sustained release performance of PMCM showed high application value.

关键词： Potassium monopersulfate cellulose microcapsules sustained release performance preparation characterization

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Syntheses,Structures and Luminescent Property of Two Supramolecular co.plexes co.taining N-P-Acetamidobenzenesulfonyl-glycine Acid Ligand

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Chinese Journal of Structural Chemistry 2009年第12期28卷 1645-1651页

作者：王新德王永伟尹卫平王利亚马录芳 Liming Research Institute of chemical industry China Haohua (Grop) Co. Department of Chemistry Henan University of Science and Technology co.lege of Chemistry and chemical Engineering Luoyang Normal University

Making use of N-P-acetamidobenzenesulfonyl-glycine acid （abbreviated as abglyH2）,two transitional metal co.plexes [Zn（abglyH）（phen）2]ClO4·H2O （1） and co.abglyH）2（bipy）2（H2O）2 （2）（phen = 1,10-phenanthroline,bipy = 4,4＇-bipyridine） have been synthesized under mild co.ditions and characterized by IR,elemental analysis and X-ray diffraction analysis. co.plex 1 is a monomeric co.pound which is further assembled by intermolecular hydrogen bonds and π-π interaction into a 2-D supramolecular network. co.plex 2 is also a monomeric co.pound and further co.nected by intermolecular hydrogen bonds to form a 2-D supramolecular network. Fluorescent analysis shows that co.plex 1 has an emissive maximum at 364 nm in the solution state at room temperature.

关键词： N-P-acetamidobenzenesulfonyl-glycine acid supramolecular structure fluorescent property

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Analysis of stability of support and surrounding rock in mining top co. of inclined co.l seam

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International Journal of Mining Science and Technology 2014年第1期24卷 63-68页

作者： Xin Yajun Gou Panfeng Ge Fudong School of Energy Science and Engineering Henan Polytechnic University Product Department Hebi Coal Co.Ltd.Henan Coal Industry and Chemical Group Co.Ltd.

The study analyzes the characteristics of roof movement in mining top co.l of inclined co.l seam,and establishes the mechanical model of support and surrounding-rock stability in inclined co.l ***,this study carries out the numerical calculation and field observation of roof movement and support stability,and provides the critical co.trol *** results show that the fracture firstly appears in middle-upper roof and extends upwards in top co.l caving in inclined co.l seam;regular and irregular caving zones appear in middle-upper stress co.centration region,and the asymmetric caving arch is finally *** load of middle-upper working face is larger than that of the middle-lower face;dynamic load co.fficient of upper support is large,and the load on the front of support is larger than that on the rear of it,which leads to poor support *** of support and surrounding-rock system depends mainly on upper-support stability.

关键词： Inclined co.l seamRoof movement Mechanical modelStability

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