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Preparation of Co/S co-doped carbon catalysts for excellent methylene blue degradation

International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 169-181页

作者： Haixu Li Haobo He Tiannan Jiang Yunfei Du zhichen wu Liang Xu Xinjie Wang Xiaoguang Liu Wanhua Yu Wendong Xue School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China Beijing Jinyu Tongda Refractory Technologies Co. Ltd.Beijing 100085China

S and Co co-doped carbon catalysts were prepared via pyrolysis of MOF-71 and thiourea mixtures at 800℃at a mass ratio of MOF-71 to thiourea of 1:0.1 to effectively activate peroxymonosulfate(PMS)for methylene blue(MB)*** effects of two different mixing routes were identified on the MB degradation ***,the catalyst obtained by the alcohol solvent evaporation(MOF-AEP)mixing route could degrade 95.60%MB(50 mg/L)within 4 min(degradation rate:K=0.78 min^(-1)),which was faster than that derived from the direct grinding method(MOF-DGP,80.97%,K=0.39 min^(-1)).X-ray photoelectron spectroscopy revealed that the Co-S content of MOF-AEP(43.39at%)was less than that of MOF-DGP(54.73at%),and the proportion of C-S-C in MOF-AEP(13.56at%)was higher than that of MOF-DGP(10.67at%).Density functional theory calculations revealed that the adsorption energy of Co for PMS was -2.94 eV when sulfur was doped as C-S-C on the carbon skeleton,which was higher than that when sulfur was doped next to cobalt in the form of Co-S bond(-2.86 eV).Thus,the C-S-C sites might provide more contributions to activate PMS compared with ***,the degradation parameters,including pH and MOF-AEP dosage,were ***,radical quenching experiments and electron paramagnetic resonance(EPR)measurements revealed that ^(1)O_(2)might be the primary catalytic species,whereas·O~(2-)might be the secondary one in degrading MB.

关键词： advanced oxidation process alcohol solvent evaporation hydrogen bond S and Co co-doped carbon catalysts wastewater remediation

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杨贤江的职业教育求索及其当代启示

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职业技术教育 2024年第21期45卷 75-80页

作者：吴之宸华东师范大学教育学部上海200333

作为马克思主义教育家,杨贤江在长期教育实践和理论求索中逐渐凝练出自己独特的职业教育观。他注重在时代变局中求索职业教育的变革路向,自觉用历史唯物主义把握职业教育的基本问题,坚持在国际视野和本土实践的深度结合中推进职业教育... 详细信息

作为马克思主义教育家,杨贤江在长期教育实践和理论求索中逐渐凝练出自己独特的职业教育观。他注重在时代变局中求索职业教育的变革路向,自觉用历史唯物主义把握职业教育的基本问题,坚持在国际视野和本土实践的深度结合中推进职业教育。其对职业教育的探索,不仅推进了职业教育思想的中国化实践,也对当代中国职业教育的传承发展具有重要启迪。

关键词：杨贤江职业教育马克思主义教育家

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李廷翰的“实用·自动·研究”课程与教学思想:缘起、内涵及实践

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上海教育科研 2024年第5期 36-43页

作者：吴之宸华东师范大学教育学部 200333

李廷翰课程与教学思想具有实用、自动、研究三个特点。实用,即其思想的现实关切和务实精神;自动,即对学生个体的充分尊重与适时引导;研究,是指贯穿课程教学活动中一丝不苟和精益求精。李廷翰课程与教学思想源于中国传统教育向近代教育... 详细信息

李廷翰课程与教学思想具有实用、自动、研究三个特点。实用,即其思想的现实关切和务实精神;自动,即对学生个体的充分尊重与适时引导;研究,是指贯穿课程教学活动中一丝不苟和精益求精。李廷翰课程与教学思想源于中国传统教育向近代教育转型的影响、早期实用主义教育思潮的驱动以及对上海时化小学和上海万竹小学课程与教学发展需要的回应。这种课程与教学思想的内涵体现在应用与理性并重的课程价值、直观自习与实用的教学主义、以启发式为主的教学方法、与研究相结合的教学原则四个方面。为此,李廷翰在上海时化小学和上海万竹小学合理设计课程体系、有序开展教学活动、有效结合教学与研究、谨慎推行教学实验,并积极组织教材编写,促进了学校课程与教学的发展。

关键词：李廷翰课程与教学思想实用自动研究

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高大建筑物下地基远年采空区注浆加固处理

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河北能源职业技术学院学报 2001年第1期1卷 68-70页

作者：吴志臣开滦集团地矿工程有限公司河北唐山063000

本文结合开滦(集团)热电公司技改工程二期工程地基采空区注浆加固处理的实际施工资料,概述并分析了建筑物地基采空区的状况、加固处理的设计依据和施工技术,最后对此类工程的设计和施工提出建设性的建议。

关键词：建筑物地基采空区注浆加固处理条带支撑

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徐特立劳动教育思想探析

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现代教育科学 2022年第2期 24-29页

作者：吴之宸华东师范大学上海200062

徐特立的劳动教育思想缘起于其对阶级社会的反思、勤工俭学的教育经历以及对近代革命的回应。其以教育与生产相联系为内涵,以培养德智体全面发展的新人为目的,以劳心与劳力结合、生产与学习结合、理论与实际结合为原则。这一劳动教育思... 详细信息

徐特立的劳动教育思想缘起于其对阶级社会的反思、勤工俭学的教育经历以及对近代革命的回应。其以教育与生产相联系为内涵,以培养德智体全面发展的新人为目的,以劳心与劳力结合、生产与学习结合、理论与实际结合为原则。这一劳动教育思想还渗透在课程教授、教材编写、学校办学等实践活动中,并取得了显著实效。徐特立的劳动教育思想对当前劳动教育的发展具有重要的学术价值和现实意义。

关键词：徐特立劳动教育思想实践

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万家寨水利枢纽220kVGIS设备安装的质量控制

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吉林水利 2000年第11期 17-19页

作者：田熙光吴志成水利部东北勘测设计研究院吉林长春130021

本文重点阐述万家寨水利枢纽２２０ｋＶ高压设备（简称ＧＩＳ设备）在安装过程中，监理工程师的质量控制、工序控制，对水力发电厂２２０ｋＶＧＩＳ设备，在今后安装过程中提出了新的要求，并为我国水力水电事业发展服务。

关键词：万家寨水利枢纽 GIS 设备安装质量控制

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Undelayed Initialization Using Dual Channel Vision for Ego-Motion in Power Line Inspection

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Chinese Journal of Electronics 2016年第1期25卷 33-39页

作者： wu Hua wu Yanxiong LIU Changan YANG Guotian LI zhichen School of Control and Computer Engineering North China Electric Power University Department of Disaster Prevention Apparatus Institute of Disaster Prevention Science and Technology China North Industries Corporation

This paper presents a novel approach to the initialization of an ego-motion estimation technique for autonomous power line inspection. Dual channel vision, consisting of an infrared and optical camera, is typically adopted during inspection. The infrared camera is far more proficient at reliably detecting heated regions of the power tower which can be regarded as a prior relationship between the tower and cameras. Using the infrared camera, which is equipped parallel to the optical camera, an incomplete correspondence between the optical image and a 3D CAD model is established. Depending on the degree of correspondence, the initial pose of the CAD model in the optical image is estimated through two stages of coarseto-fine estimation. The primary contributions of this paper include: 1) using dual vision for partial initialization; 2) incorporating two-stage algorithms to estimate an accurate pose quickly; 3) implementing an algorithm which functions correctly regardless of the motion blur or background texture. Experimental results consistently show that the initial pose can be estimated efficiently and robustly.

关键词： Undelayed initialization 3D model Ego motion Infrared and optical cameras Power line inspection Drones

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Moderately concentrated electrolyte enabling high-performance lithium metal batteries with a wide working temperature range

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Journal of Energy Chemistry 2023年第4期79卷 201-210页

作者： Sisi Wang zhichen Xue Fulu Chu Zengqiang Guan Jie Lei Feixiang wu School of Metallurgy and Environment Engineering Research Center of the Ministry of Education for Advanced Battery MaterialsHunan Provincial Key Laboratory of Nonferrous Value-added MetallurgyState Key Laboratory of Powder MetallurgyCentral South UniversityChangsha 410083HunanChina

The electrolyte integrated with lithium metal anodes is subjected to the issues of interfacial compatibility and stability,which strongly influence the performances of high-energy lithium metal ***,we report a new electrolyte recipe viz.a moderately concentrated electrolyte comprising of 2.4 M lithium bis(fluorosulfonyl)imide(LiFSI)in a cosolvent mixture of fluorinated ethylene carbonate(FEC)and dimethyl carbonate(DMC)with relatively high ion *** to the preferential decomposition of LiFSI and FEC,an inorganic-rich interphase with abundant Li_(2)O and LiF nanocrystals is formed on lithium metal with improved robustness and ion transfer kinetics,enabling lithium plating/stripping with an extremely low overpotential of~8 mV and the average CE of 97%.When tested in Li||LiFePO_(4) cell,this electrolyte provides long-term cycling with a capacity retention of 98.3%after 1000 cycles at 1 C and an excellent rate performance of 20 C,as well as an areal capacity of 1.35 mA h cm^(-2)at the cathode areal loading of 9 mg cm^(-2).Moreover,the Li||LiFePO_(4) cell exhibits excellent wide-temperature performances(-40~60℃),including long-term cycling stability over 2600 cycles without visible capacity fading at 0℃,as well as extremely high average CEs of 99.6%and 99.8% over 400 cycles under-20℃ and 45℃.

关键词： Moderately concentrated electrolyte Wide temperature range LiFePO_(4)cathode Lithium metal battery Solid electrolyte interphase

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Development of the Self-doping Porous Carbon and Its Application in Supercapacitor Electrode

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Chemical Research in Chinese Universities 2022年第4期38卷 1065-1072页

作者： YANG zhichen KANG Xiaoting ZOU Bo YUAN Xuna LI Yajie wu Qin GUO Yupeng College of Chemistry Jilin UniversityChangchun130012P.R.China

The massive discharge of biomass wastes not only causes waste of resources,but also pollutes the ***,converting biomass wastes into carbon materials is an effective way to solve the above ***,using biomass waste pig nails as raw materials and K_(2)CO_(3) as chemical activators,the N-doped porous carbon(KPNC)is prepared by direct *** an electrode for supercapacitors,the electrochemical tests of KPNCs showed that they exhibited good electrochemical performance and excellent cycling *** the current density is 0.2 A/g,the specific capacitance is up to 344.6 F/***,it still maintains 97.6%initial capacitance retention after 2000 cycles at a high current density of 5 A/*** exceptional electrochemical performances may be ascribed to an appropriate porous structure(Smicro/Stotal=80.31%,Vmicro/Vtotal=76.19%),high nitrogen contents(4.44%,atomic fraction),oxygen contents(9.13%,atomic fraction)as well as small internal *** above experimental results show that the conversion of pig nails to porous carbon can reduce the waste of resources and alleviate environmental pollution.

关键词： Supercapacitor Porous carbon Biomass waste Heteroatom doping Electrochemical performance

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Late Eocene pollen records and palaeoenvironmental changes in northern Tibetan Plateau

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Science China Earth Sciences 2008年第8期51卷 1089-1098页

作者： MIAO YunFa FANG XiaoMin SONG zhichen wu FuLi HAN WenXia DAI Shuang SONG ChunHui Institute of Tibetan Plateau Research Chinese Academy of SciencesBeijing 100085China National Laboratory of Western China Environmental Systerms of Education of China&Department of Geography Lanzhou UniversityLanzhou 730000China Nanjing Institute of Geology and Palaeontology Chinese Academy of SciencesNanjing 210008China

The Eocene palaeovegetation landscape and palaeoclimate reconstructed from the pollen records in the Jiuquan Basin, northwest China provide some important information on the early uplift of the Tibetan Plateau and the origin and evolution of the aridification in northwest China. The records show the arid-semiarid scrubs with open forest palynofloras controlled by the subtropical high existed in northwest China during the 40.2-33.4 Ma. Four pollen assemblages are found: Nitrariadites-Cheno-podipollis-Pinaceae assemblage (40.2-37.9 Ma) is followed by Chenopodipollis-Nitrariadites assemblage (37.9-34.6 Ma), Pinuspollenites & Abietineaepollenites-Chenopodipollis assemblage (34.6-33.9 Ma), and Chenopodipollis-Nitrariadites assemblage (33.9-33.4 Ma). The percentage of thermophilic types is in anti-correlation with that of the dry types, which means the palaeoclimate is relatively warmwet or cold-dry during most of that time. Such aridity may be related to the water vapor reduction and the planetary wind system movement northward in response to the cooling caused by small-ephemeral icesheets.

关键词： Tibetan Plateau pollen records Eocene planetary arid zone palaeoenvironment cooling

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