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Journal of Materiomics 2023年第5期9卷 882-891页

作者： Hongjie Qin Weijie zhang Qiling Zheng penghui zhang Shouwei zhang Xijin Xu School of Physics and Technology University of Jinan336 West Road of Nan XinzhuangJinan250022ShandongChina

Catalysts that can rapidly degrade tetracycline(TC)in water without introducing secondary ion pollution have always been challenging.Herein,a cobalt-based catalyst(CoO_(x)@P-C)is prepared so that CoOx quantum particles(5e10 nm)are uniformly distributed on a linear substrate,and the outer layer is covered with a shell(P-C).The quantum particles of CoO_(x) provide many active sites for the reaction,which ensures the efficient degradation effect of the catalyst,and 30 mg/L TC can be completely degraded in only 5 min.The shell of the quantum particles'outer layer can effectively reduce ions'extravasation.The combination of the shell-like structure and the linear substrate greatly enhances the catalysis's stability and ensures that the catalyst is prepared into a film for practical application.The high catalytic activity of CoO_(x)@P-C is mainly due to the following factors:(1)Uniformly distributed ultra-small nanoparticles can provide many active sites.(2)The microenvironment formed by the core-shell structure enhances not only catalytic stability but also provides the driving force to improve the reaction rate.(3)The composite of CoO_(x) and P-C core-shell structure can accelerate electron transfer and generate many reactive oxygen species in a short time,which makes TC degrade extremely rapidly.

关键词： Cobalt quantum particles Peroxymonosulfate(PMS)activation Superoxide Core-shell structure Tetracycline

Crustal Electrical Structure of the Wuwei Basin,Lower Yangtze Region of China,and Its Geological Implications

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Journal of Earth Science 2023年第6期34卷 1744-1757页

作者： Xiaobo zhang penghui zhang Meixing He Dashuang He Fagen Pei Yaoyang zhang Yan Peng Institute of Geophysical and Geochemical Exploration Chinese Academy of Geological SciencesLangfang 065000China National Research Center for Geo-exploration Technology Langfang 065000China College of Earth Sciences Chengdu University of TechnologyChengdu 610059China

The Wuwei Basin is one of the most important oil-and gas-bearing basins in the Meso-Cenozoic basin groups in the Lower Yangtze River region.It has great shale gas resource prospects.The formation mechanism of this basin is poorly studied for lack of constraining data for deep structures.In this paper,a crustal electrical structure model of the Wuwei Basin and the adjacent areas is constructed based on the two-dimensional inversion of a magnetotelluric(MT)sounding profile achieved with the nonlinear conjugate gradient method.The results show that large-scale low-resistance bodies have developed in the underlying middle and lower crust of the Wuwei Basin,and are different from the uplifts on the two sides according to their high-resistance electrical characteristics.The electrical structure and regional geological and geophysical data suggest that the peak zone of the Chuzhou-Chaohu foreland fold-and-thrust belt is located on the east bank of the Yangtze River(Wuhu Section),which,together with the main thrust fault belt in the east,forms a typical thrust structure belt.An early Yanshanian sinistral strike-slip fault developed in the deep part of the Wuwei Basin,which may have controlled the formation and evolution of the basin,whereas the tectonic inversion of the early-developed thrust faults is relatively weak.These findings provide a geophysical basis for future studies of basin tectonic evolution and regional tectonic frameworks.

关键词： Wuwei Basin Lower Yangtze deep structure electrical structure fold-and-thrust belt shale gas magnetotellurics geophysics

Melt polymerization synthesis of a class of robust self-shaped olefin-linked COF foams as high-efficiency separators

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Science China Chemistry 2022年第6期65卷 1173-1184页

作者： penghui zhang Zhifang Wang Yi Yang Sa Wang Ting Wang Jinjin Liu Peng Cheng Yao Chen Zhenjie zhang State Key Laboratory of Medicinal Chemical biology College of ChemistryNankai UniversityTianjin300071China Key Laboratory of Advanced Energy Materials Chemistry Ministry of EducationNankai UniversityTianjin300071China College of Pharmacy Nankai UniversityTianjin300071China Renewable Energy Conversion and Storage Center Nankai UniversityTianjin300071China

The practical applications of crystalline porous materials toward industrial separations require shaping them into robust monoliths(e.g., foams). The current methods are often complicated, environmentally unfriendly, and unscalable, significantly hampering their practical application. Herein, we report a scalable, facile “one-step thermomolding” method to fabricate a class of hierarchically olefin-linked covalent organic framework(COF) foams via melt polymerization. The obtained pure COF foams possess higher crystallinity and porosity than literature, good moldability, and processability, greatly benefiting their practical applications(e.g., efficient oil-water separation with 99% removal efficiency and >100 cycle reusability). Moreover, a COF exhibiting the smallest(0.58 nm) eclipsed stacking pore among all 2-dimensional COFs with neutral skeletons is first fabricated via this protocol, demonstrating good C2 H2 purification performance and recyclability, surpassing the current benchmark materials. We believe that this facile fabrication strategy can promote access to a broad diversity of new COF foams and enlighten further avenues for green routes to large-scale synthesis and usage of COFs.

关键词： covalent organic framework separation foam melt polymerization

Industry-compatible covalent organic frameworks for green chemical engineering

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Science China Chemistry 2022年第11期65卷 2144-2162页

作者： Zhifang Wang Qianqian Zhu Jiaxi Wang Fazheng Jin penghui zhang Dong Yan Peng Cheng Yao Chen Zhenjie zhang State Key Laboratory of Medicinal Chemical Biology College of ChemistryNankai UniversityTianjin 300071China Key Laboratory of Advanced Energy Materials Chemistry Ministry of EducationNankai UniversityTianjin 300071China Renewable Energy Conversion and Storage Center Nankai UniversityTianjin 300071China Frontiers Science Center for New Organic Matter Nankai UniversityTianjin 300071China College of Pharmacy Nankai UniversityTianjin 300071China

In order to move towards sustainable development, the discovery of energy-efficient and environmentally friendly materials has become increasingly imperative. Covalent organic frameworks(COFs) as emerging designable crystalline porous materials have captured increasing attention for a wide array of clean-energy and environmental applications, attributed to their attractive advantages of low density, high surface area, adjustable and periodic pores, and functional skeletons. This review attempts to highlight the key advancements made in the green synthesis of COFs, processing of COFs, energy and environment-related applications, including gas storage, water treatment, the separation of gas mixture and organic molecules, catalysis, supercapacitors, fuel cell, and rechargeable batteries. Finally, a perspective regarding the remaining challenges and future directions on the synthesis and promising application for green chemical engineering of COFs has also been presented based on current achievements.

关键词： covalent organic frameworks green chemical engineering clean energy environmental protection

Thermally rearranged covalent organic framework with flame-retardancy as a high safety Li-ion solid electrolyte

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eScience 2022年第3期2卷 311-318页

作者： Zhifang Wang Yushu zhang penghui zhang Dong Yan Jinjin Liu Yao Chen Qi Liu Peng Cheng Michael JZaworotko Zhenjie zhang Renewable Energy Conversion and Storage Center Frontiers Science Center for New Organic MatterCollege of ChemistryNankai UniversityTianjin300071China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin300071China College of Pharmacy Nankai UniversityTianjin300071China Department of Chemical Sciences and Bernal Institute University of LimerickLimerickV94 T9PXIreland Department of Physics City University of Hong KongHong Kong999077China

Solid polymer electrolytes have demonstrated high promise to solve the safety problems caused by conventional liquid electrolytes in lithium ion batteries.However,the inherent flammability of most polymer electrolyte materials remains unresolved,hence hindering their further industrial application.Addressing this challenge,we designed and constructed a thermal-responsive imide-linked covalent organic framework(COF)bearing ortho-positioned hydroxy groups as precursors,which can conduct a thermal rearrangement to transform into a highly crystalline and robust benzoxazole-linked COF upon heating.Benefiting from the release of carbon dioxide through thermal rearrangement reaction,this COF platform exhibited excellent flame retardant properties.By contrast,classic COFs(e.g.,boronate ester,imine,olefin,imide linked)were all flammable.Moreover,incorpo-rating polyethylene glycol and Li salt into the COF channels can produce solid polymer electrolytes with outstanding flame retardancy,high ionic conductivity(6.42×10^(-4) S cm^(-1))and a high lithium-ion transference number of 0.95.This thermal rearrangement strategy not only opens a new route for the fabrication of ultrastable COFs,but also provides promising perspectives to designing flame-retardant materials for energy-related applications.

关键词： Covalent organic frameworks Thermal rearrangement Flame retardancy Solid polymer electrolytes Lithium-ion batteries

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桩柱式桥墩-桩基连接的抗震性能分析

同济大学学报（自然科学版） 2024年第3期52卷 323-330页

作者：张鹏辉周连绪王志强同济大学土木工程学院上海200092

为了深入揭示桩柱式桥墩-桩基连接区域的传力机理和破坏模式,对现有的试验结果进行了精细化的有限元模拟,分析连接区域的传力机理和破坏过程,并利用校验后的有限元模型进行参数分析,探讨剪跨比、承插深度、桩墩直径比、桩基配箍率对连... 详细信息

为了深入揭示桩柱式桥墩-桩基连接区域的传力机理和破坏模式,对现有的试验结果进行了精细化的有限元模拟,分析连接区域的传力机理和破坏过程,并利用校验后的有限元模型进行参数分析,探讨剪跨比、承插深度、桩墩直径比、桩基配箍率对连接区域抗震性能的影响。结果表明:提出的有限元模拟方法能够较为准确地模拟桩柱式墩-桩基连接区域的力学行为;连接区域的破坏模式表现为桥墩承插段对桩基杯口顶部的水平推力导致的桩基箍筋屈服;增大剪跨比、桩墩直径比、承插深度、桩基配箍率均能提高连接区域的承载力。

关键词：桩柱式桥墩承插式连接数值模拟破坏模式参数分析

CoPc-PCN异质结高效界面电荷转移活化PMS降解四环素

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精细化工 2024年第3期41卷 657-665,696页

作者：张鹏辉秦鸿杰郑其玲尹强张守伟济南大学物理科学与技术学院山东济南250022

将尿素和无水次磷酸钠通过高温磷化工艺制备了磷掺杂石墨相氮化碳(g-C_(3)N_(4))纳米片(PCN),PCN继而与酞菁钴(CoPc)在马弗炉中煅烧构建了CoPc-PCN异质结(简称Co-PCN)。采用XRD、FTIR、SEM、TEM、HAADF-STEM、XPS、UV-Vis DRS对样品进... 详细信息

将尿素和无水次磷酸钠通过高温磷化工艺制备了磷掺杂石墨相氮化碳(g-C_(3)N_(4))纳米片(PCN),PCN继而与酞菁钴(CoPc)在马弗炉中煅烧构建了CoPc-PCN异质结(简称Co-PCN)。采用XRD、FTIR、SEM、TEM、HAADF-STEM、XPS、UV-Vis DRS对样品进行了表征,并评价了其活化过一硫酸盐(PMS)降解四环素(TC)的性能。结果表明,异质结的构建使光的吸收边缘拓宽至可见光区,将20 mg 5%Co-PCN(5%为CoPc质量占PCN质量的百分数)加入50 m L初始质量浓度为10 mg/L的TC水溶液中可活化30 mg PMS,经过40 min反应后,其对TC的降解率达到98.8%,降解速率常数为0.087 min^(-1)。PCN与CoPc界面处的异质结势垒加速了光生电子/空穴的分离,同时强界面相互作用也为电子转移提供了通道,主要是O2还原生成大量的·O_(2)^(-),并活化PMS产生·O_(2)^(-)、·SO_(4)^(−)和·OH来降解TC。

关键词：异质结光催化剂酞菁钴过一硫酸盐四环素石墨相氮化碳催化技术

基于无模型自适应控制的半潜式平台运动性能研究

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振动与冲击 2024年第2期43卷 88-96页

作者：余杨张鹏辉成司元张文豪余建星天津大学水利工程仿真与安全国家重点实验室天津300072 天津大学天津市港口与海洋工程重点实验室天津300072

南海海域油气资源极其丰富,半潜式平台在该海域工作时常常面临着系泊失效这一重大危险情况。该研究以一艘装配有悬链式系泊系统和DP-3动力定位系统的半潜式平台为研究对象,利用AQWA软件开展系泊失效前后半潜式平台运动性能研究。同时,... 详细信息

南海海域油气资源极其丰富,半潜式平台在该海域工作时常常面临着系泊失效这一重大危险情况。该研究以一艘装配有悬链式系泊系统和DP-3动力定位系统的半潜式平台为研究对象,利用AQWA软件开展系泊失效前后半潜式平台运动性能研究。同时,借助于AQWA软件二次开发功能,将无模型自适应控制作为动力定位系统控制理论,以研究半潜式平台系泊失效后运动性能恢复。数值仿真模拟结果表明,采用无模型自适应控制作为动力定位系统控制理论的半潜式平台能很好地恢复系泊失效后的运动性能,有效地减小系泊失效带来的危害;基于偏格式动态线性化和全格式动态线性化的无模型自适应控制比基于紧格式动态线性化的无模型自适应控制能让半潜式平台更快地恢复运动性能。

关键词：半潜式平台系泊失效无模型自适应控制动力定位系统运动性能

《中庸》引《诗经》“鸢飞戾天,鱼跃于渊”的内蕴之意

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黑河学院学报 2024年第2期15卷 133-135,139页

作者：张芃蕙西华师范大学四川南充637002

《中庸》第十二章引《诗经·大雅·旱麓》中“鸢飞戾天、鱼跃与渊”一诗句阐释论点“君子之道费而隐”,是围绕《诗经》原句本义进行论述的。在《诗经》原句歌颂君子之道沐泽大地的基础上,深化原句意味,使君子之道的实施对象具有普遍性,... 详细信息

《中庸》第十二章引《诗经·大雅·旱麓》中“鸢飞戾天、鱼跃与渊”一诗句阐释论点“君子之道费而隐”,是围绕《诗经》原句本义进行论述的。在《诗经》原句歌颂君子之道沐泽大地的基础上,深化原句意味,使君子之道的实施对象具有普遍性,赋予其更深的教化意义。

关键词：《中庸》《诗经》鸢飞戾天鱼跃于渊

A single-cell transcriptome of mesenchymal stromal cells to fabricate bioactive hydroxyapatite materials for bone regeneration

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Bioactive Materials 2022年第3期7卷 281-298页

作者： Peng Guo Xizhe Liu penghui zhang Zhongyuan He Zhen Li Mauro Alini RGeoff Richards Sibylle Grad Martin J.Stoddart Guangqian Zhou Xuenong Zou Danny Chan Wei Tian Dafu Chen Manman Gao Zhiyu Zhou Shaoyu Liu Innovation Platform of Regeneration and Repair of Spinal Cord and Nerve Injury Department of Orthopaedic SurgeryThe Seventh Affiliated Hospital of Sun Yat-sen UniversityShenzhenChina Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhouChina AO Research Institute Davos DavosSwitzerland Shenzhen Key Laboratory of Anti-aging and Regenerative Medicine Department of Medical Cell Biology and GeneticsHealth Sciences CenterShenzhen UniversityShenzhenChina School of Biomedical Sciences LKS Faculty of MedicineThe University of Hong KongHong Kong SARChina Laboratory of Bone Tissue Engineering Beijing Laboratory of Biomedical MaterialsBeijing Research Institute of Orthopaedics and TraumatologyBeijing JiShuiTan HospitalBeijingChina Department of Sport Medicine Inst Translat MedThe First Affiliated Hospital of Shenzhen UniversityShenzhen Second People’s HospitalShenzhenChina

The osteogenic microenvironment of bone-repairing materials plays a key role in accelerating bone regeneration but remains incompletely defined,which significantly limits the application of such bioactive materials.Here,the transcriptional landscapes of different osteogenic microenvironments,including three-dimensional(3D)hydroxyapatite(HA)scaffolds and osteogenic medium(OM),for mesenchymal stromal cells(MSCs)in vitro were mapped at single-cell resolution.Our findings suggested that an osteogenic process reminiscent of endochondral ossification occurred in HA scaffolds through sequential activation of osteogenic-related signaling pathways,along with inflammation and angiogenesis,but inhibition of adipogenesis and fibrosis.Moreover,we revealed the mechanism during OM-mediated osteogenesis involves the ZBTB16 and WNT signaling pathways.Heterogeneity of MSCs was also demonstrated.In vitro ossification of LRRC75A+MSCs was shown to have better utilization of WNT-related ossification process,and PCDH10+MSCs with superiority in hydroxyapatite-related osteogenic process.These findings provided further understanding of the cellular activity modulated by OM conditions and HA scaffolds,providing new insights for the improvement of osteogenic biomaterials.This atlas provides a blueprint for research on MSC heterogeneity and the osteogenic microenvironment of HA scaffolds and a database reference for the application of bioactive materials for bone regeneration.

关键词： inflammation bioactive finding