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An efficient CuZr-based metallic glasses electrode material for electrocatalytic degradation of azo dyes

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Journal of Environmental Sciences 2024年第2期136卷 537-546页

作者： Zhiwang Deng Bowen Zhao Songtao Li Zhengkun Li Shiming Zhang Kewei Zhang zhengwang Zhu Taiyuan University of Science and Technology School of materials science and engineeringTaiyuan 030024China Shi-changxu Innovation Center for Advanced Materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Chinese Academy of Sciences Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Qingdao Yunlu Advanced Materials Technology Co. Ltd.Qingdao 266232China

Metallic glasses have received a lot of attention on wastewater treatment due to their unique atomic structure,and the use of metallic glasses as electrodes has produced unexpected electrocatalytic degradation effects for many pollutants through combining with electrochemical ***,it still is a formidable challenge to find a metallic glass electrode material with both efficient and clean for the catalytic degradation of *** this work,the Cu_(55)Zr_(45)metallic glassy ribbons are used as an electrode to degrade azo dyes and show the excellent degradation effect,which can reach 95.6%within 40 *** the degradation process,almost no additives are produced and Cu_(55)Zr_(45)metallic glassy ribbons have excellent effects under different pH ***,it exhibits good stability for degradation efficiency during the 8 cycle degradation tests of the amorphous alloy *** the copper nanoparticles are exposed on the surface of the ribbons,the oxidized copper obtained synergistically produce activated radicals is the primary degradation mechanism,where the auxiliary degradation mechanisms include electron transfer and the promotion of active *** research develops a new type of electrode material for wastewater treatment,and the economy and high efficiency of Cu55Zr45metallic glass endow it the expandable functional applications.

关键词： Metallic glasses Azo dyes Electrocatalytic Degradation Oxidized copper

Migration pattern of a population of Barn Swallows(Hirundo rustica)breeding in East Asian tropical region

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Avian Research 2024年第3期15卷 299-307页

作者： Li Tian Yu Liu Yang Wu Zimei Feng Dan Hu zhengwang Zhang Key Laboratory for Biodiversity Sciences and Ecological Engineering Ministry of EducationCollege of Life SciencesBeijing Normal UniversityBeijing100875China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing100107China Life Science and Technology School Lingnan Normal UniversityZhanjiang524048China

Birds exhibit a high degree of migratory diversity,which is influenced by various ecological factors and life history *** studies on tropical bird migration,of which research is scarce,and comparing it with temperate birds can enhance our understanding of bird migration behaviour and its underlying *** this study,we explored the migration behaviour of a breeding population of the Barn Swallow(Hirundo rustica)in Zhanjiang,southern China,a region located in the northern tropics,using light-level *** 2021 to 2023,we deployed geolocators on 92 breeding swallows and retrieved geolocators successfully from 23 *** swallows all exhibited migratory behaviour,and wintering on various islands in Southeast *** displayed sex differences in their wintering *** males concentrated in Borneo,while females primarily chose Borneo but also dispersed to the Philippines,South China Sea,and Vietnam for *** studied swallow population adopted a seasonal migration pattern of“indirect in autumn,direct in spring”,bypassing the ecological barrier of the South China Sea in autumn and tending to directly cross it in spring ***,the distance and duration of autumn migration was significantly longer than those of the spring *** to temperate Barn Swallows,the Barn Swallow population breeding in Zhanjiang adopts a pattern of“intra-tropical migration”and initiates autumn migration *** formation of their migration pattern may be limited by ecological and physiological factors.

关键词： Asia Chain migration Light-level geolocators Migration Northern tropics

Population genomic data reveal low genetic diversity,divergence and local adaptation among threatened Reeves's Pheasant(Syrmaticus reevesii)

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Avian Research 2024年第1期15卷 1-11页

作者： Qi Lu Pengcheng Wang Jiang Chang De Chen Shenghan Gao Jacob Hoglund zhengwang Zhang Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering College of Life SciencesBeijing Normal UniversityBeijing100875China Jiangsu Key Laboratory for Biodiversity and Biotechnology College of Life SciencesNanjing Normal UniversityNanjing210023China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing100012China State Key Laboratory of Microbial Resources Institute of MicrobiologyChinese Academy of SciencesBeijing100101China Department of Ecology and Genetics Animal EcologyUppsala UniversityUppsalaSweden

Population genomic data could provide valuable information for conservation efforts;however,limited studies have been conducted to investigate the genetic status of threatened ***’s Pheasant(Syrmaticus reevesii)is facing population decline,attributed to increases in habitat *** is a knowledge gap in understanding the genomic status and genetic basis underlying the local adaptation of this threatened ***,we used population genomic data to assess population structure,genetic diversity,inbreeding patterns,and genetic ***,we identified candidate genes linked with adaptation across the current distribution of Reeves’s *** present study assembled the first de novo genome sequence of Reeves’s Pheasant and annotated 19,458 *** also sequenced 30 individuals from three populations(Dabie Mountain,Shennongjia,Qinling Mountain)and found that there was clear population structure among those *** comparing with other threatened species,we found that Reeves’s Pheasants have low genetic *** of homozygosity suggest that the Shennongjia population has experienced serious *** demographic history results indicated that three populations experienced several declines during the glacial *** adaptative analysis among the populations identified 241 candidate genes under directional *** are involved in a large variety of processes,including the immune response and *** results suggest that the three populations should be considered as three different conservation *** current study provides genetic evidence for conserving the threatened Reeves’s Pheasant and provides genomic resources for global biodiversity management.

关键词： Conservation genetics Local adaptation Pheasant Whole-genome sequencing

Novel Soft Magnetic Co-Based Ternary Co-Er-B Bulk Metallic Glasses

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Acta Metallurgica Sinica(English Letters) 2024年第9期37卷 1633-1642页

作者： Jie Lu Yanhui Li Shuang Ma Wanping Li Feng Bao zhengwang Zhu Qiaoshi Zeng Haifeng Zhang Man Yao Wei Zhang Key Laboratory of Materials Modification By Laser Ionand Electron Beams(Ministry of Education)School of Materials Science and EngineeringDalian University of TechnologyDalian116024China School of Metallurgy Northeastern UniversityShenyang110819China Center for High Pressure Science and Technology Advanced Research(HPSTAR) PudongShanghai201203China

In this work,a series of Co-based ternary Co-Er-B bulk metallic glasses(BMGs)with excellent soft magnetic properties and high strength were developed,and the local atomic structure of a typical Co_(71.5)Er_(3.5)B_(25) metallic glass was studied through in situ high-energy synchrotron X-ray diffraction and ab initio molecular dynamics *** results reveal that the BMG samples can be obtained in a composition region of Co_(68.5-71.5)Er_(3.5-4)B_(25-27.5) by a conventional copper-mold casting *** Co-Er-B metallic glasses possess stronger atomic bond strengths and denser local atomic packing structure composed of a higher fraction of icosahedral-like clusters but fewer deformed body-centered cubic and crystal-like polyhedrons,and they exhibit slower atomic diffusion behaviors during solidification,as compared to Co-Y-B *** enhancement in structural stability and the retardation of atomic-ordered diffusion lead to the better glass-forming ability of the Co-Er-B *** smaller magnetic anisotropy energy in the Co-Er-B metallic glasses results in a lower coercivity of less than 1.3 A/*** Co-Er-B BMGs exhibit high-yield strength of 3560-3969 MPa along with distinct plasticity of around 0.50%.

关键词： Co-based bulk metallic glass Glass-forming ability Soft magnetic property Ab initio molecular dynamics simulation Local atomic structure

Seismogenic Structure of the 1605 Qiongshan M7½ Earthquake and Its Holocene Activity History in Northern Hainan Island, China: Evidence from Cross-Section Drilling and Shallow Seismic Profile

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Journal of Earth Science 2024年第3期35卷 905-917页

作者： Chaoqun Wang Liyun Jia Daogong Hu Shibiao Bai zhengwang Hu Dongxia Sun Xiaoxiao Yang Lei Zhang Xiumin Ma Institute of Geomechanics Chinese Academy of Geological SciencesBeijing 100081China Key Laboratory of Active Tectonics and Geological Safety Ministry of Natural ResourcesBeijing 100081China Key Laboratory of Geohazard Prevention of Hilly Mountains Ministry of Land and Resources(Fujian Key Laboratory of Geohazard Prevention)Fuzhou 350002China Observation and Research Station of Crustal Stress and Strain in Beijing Ministry of Natural ResourcesBeijing 100081China College of Marine Science and Engineering Nanjing Normal UniversityNanjing 210023China Hubei Subsurface Multi-Scale Imaging Key Laboratory School of Geophysics and GeomaticsChina University of GeosciencesWuhan 430074China

The 1605 M7½ Earthquake is the only earthquake in the history of China that has caused large-scale land subsidence into the sea,with the total area of land subsidence exceeding 100 *** disaster has led to the sinking of 72 *** is still no clear understanding of the source seismogenic fault of this *** this work,we conducted a detailed study of the middle segment of the Maniao-Puqian fault(MPF),which is the epicenter area,through geomorphological survey,data collection,shallow seismic exploration,cross-section drilling,and chronological *** results showed that the middle segment of the MPF zone is composed of three nearly parallel normal faults with a dextral strike-slip:“Macun-Luodou fault(F2-1),Haixiu-Dongyuan fault(F2-2),and ChangliuZhuxihe fault(F2-3)”.And F2-2 is composed of two secondary faults,namely F2-2′and F2-2″,with a flower-shaped structure buried under the *** is distributed nearly east-west,dipping to the north and has experienced at least five stages of activities since the *** vertical activity rates of F2-2′and F2-2″are~2.32 and~2.5 mm/a,since the Holocene,*** were eight cycles of transgression and regression since the *** fault activity resulted in the thickening of the Holocene strata with a slight dip to the south,on the hanging wall,showing V-shaped *** MPF is likely the source seismogenic fault of the M7½ earthquake that hit Qiongshan in 1605.

关键词： seismogenic structure earthquakes Maniao-Puqian fault fault activity history geomorphology.

Residual topography and lithospheric isostatic gravity anomaly in the East Asian Continent

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Journal of Earth Science 2024年

作者： Pengyu Liu zhengwang Hu Qing Liang Bo Chen Chao Chen Hubei Subsurface Multi-scale Imaging Key Laboratory， School of Geophysics and Geomatics， China University of Geosciences School of Geosciences and Info-Physics， Central South University

The topography of the Earth is a crucial component for investigating dynamic topography and lithosphere–upper mantle dynamics. Dynamic topography， caused by geodynamic processes， significantly shapes Earth's current surface. Residual topography serves as an indicator of this dynamic topography. To determine residual topography， one must first obtain isostatic topography. In this study， we propose a new calculation method for isostatic topography based on the Airy-Heiskanen lithospheric isostasy model. The method is applied to obtain the residual topography map of the East Asian Continent (EAC) using the global relief model ETOPO1， the latest global crustal model ECM1， and the global seismic tomography model SL2013sv. The short-wavelength components of residual topography provide more detailed information about non-isostatic topography caused by lithospheric tectonic movements as compared to the long-wavelength components. The isostatic gravity anomaly based on the proposed lithospheric isostasy model presents some new insights into the dynamic characteristics of the lithosphere in the EAC.

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Corrigendum to“Migration pattern of a population of Barn Swallows(Hirundo rustica)breeding in East Asian tropical region”[Avian Res.15(2024)100192]

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Avian Research 2024年第3期15卷 402-402页

The authors regret that the caption of Fig.4 should be replaced as below.

关键词： breeding pattern tropical

绿色空间暴露水平对公共健康的影响机制:一个有调节的中介模型

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中国园林 2024年第3期40卷 75-81页

作者：黄丽玮康宁吴正旺华侨大学建筑学院厦门361021 清华大学建筑学院景观学系北京100084

健康是全人类共同追求的目标,城市绿色空间在提高公共健康方面发挥着积极作用,探究二者间的作用机制是基础且紧要的议题。以全球18个城市为例,通过2017年卫星影像、统计年鉴和统计报告等获取城市植被覆盖指数、健康水平、空气质量、医... 详细信息

健康是全人类共同追求的目标,城市绿色空间在提高公共健康方面发挥着积极作用,探究二者间的作用机制是基础且紧要的议题。以全球18个城市为例,通过2017年卫星影像、统计年鉴和统计报告等获取城市植被覆盖指数、健康水平、空气质量、医疗资源和经济水平等数据,运用统计学方法分析城市绿色空间暴露对公共健康水平的影响和作用机制,最终构建出可调节的中介模型。结果表明:1)城市绿色空间暴露水平与公共健康水平之间存在显著相关性;2)臭氧是城市绿色空间与公共健康水平之间的主要中介变量;3)人均GDP是臭氧在城市绿色空间与公共健康水平之间中介作用中的调节变量,其强弱程度会影响公共健康。研究结果阐明了城市绿色空间影响公共健康的主要制约因素,以期为实现全民健康覆盖的城市人居环境建设提供服务。

关键词：风景园林归一化植被指数(NDVI) 公共健康水平中介模型调节变量作用机制

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石灰石法与氨法脱硫产物中痕量元素对比

动力工程学报 2024年第2期44卷 301-306,338页

作者：王铭玮肖海平吴海涛郭正旺华北电力大学能源动力与机械工程学院北京102206

为实现脱硫产物资源化利用,评估硫酸铵和脱硫石膏的环境风险,分析了全厂重金属的含量,研究了石膏和硫酸铵中重金属的赋存和浸出特性。结果表明:Cu、Cr在硫酸铵中的含量均不足1%,远低于在石膏中的含量;Mn、Sn在石膏和硫酸铵中的含量相差... 详细信息

为实现脱硫产物资源化利用,评估硫酸铵和脱硫石膏的环境风险,分析了全厂重金属的含量,研究了石膏和硫酸铵中重金属的赋存和浸出特性。结果表明:Cu、Cr在硫酸铵中的含量均不足1%,远低于在石膏中的含量;Mn、Sn在石膏和硫酸铵中的含量相差6倍以上,可能是因为Mn、Sn离子的弱酸性;As、Pb含量在不同炉型的石膏中相差5倍以上,Se、Cd、Ba的分布规律不受炉型和脱硫工艺的影响;Cr的浸出质量浓度最高,约为标准限值的2.04%,Se与石膏中的Ca^(2+)生成CaSeO_(3)沉淀,Cu以CuFe_(2)O_(4)形式赋存于石膏中;硫酸铵中重金属的整体浸出水平高于脱硫石膏,但实验过程中重金属的排放和浸出质量浓度均远低于我国现行标准限值,脱硫产物资源化利用安全可行。

关键词：脱硫石膏硫酸铵痕量元素环境评估