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Multidisciplinary and multiscale nanoscience research roadmap based on large scientific facilities

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Science China Chemistry 2024年第8期67卷 2497-2523页

作者： Yuan Zeng Shuhan Zhang Yuecong Guo Yalin Cong Xu Ding Peihua Li Yunxiang Lin Wenzhi Ren Hui Su Weigang Sun Liuxin Xu Guikai Zhang Shihua Chen Yu Chen Weiren Cheng Shengqi Chu Yong Guan Jinru Han Jie Lin Hengjie Liu Zheyi Liu Pan Luo Fanchun Meng Sicong Qiao Zongyin Song Ying Wang Zhao Wu Chenyu Yang Meng Yang Shirui Yang Zi Yin Zhibin Yin Pengjun Zhang Hongyu Zhang Pingping Zheng Jia Zhou Wanlin Zhou Pengfei An He Cheng Chunhai Fan xingjiu huang Yong Lei Lina Li Mu Li Qinghua Liu Shuming Peng Li Song Zhihu Sun Yangchao Tian Fangjun Wang Lihua Wang Liming Wang Shiqiang Wei Aiguo Wu Chunlei Xiao Xueming Yang Panchao Yin Jing Zhang Mingxin Zhang Yaling Wang Chunying Chen CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety New Cornerstone Science LaboratoryNational Center for Nanoscience and TechnologyBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230029China Institute of Solid State Physics Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China Institutes of Physical Science and Information Technology Anhui UniversityHefei 230601China Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology Zhejiang International Cooperation Base of Biomedical Materials Technology and ApplicationCAS Key Laboratory of Magnetic Materials and DevicesNingbo Cixi Institute of Biomedical EngineeringZhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China Advanced Energy Science and Technology Guangdong Laboratory Huizhou 516000China College of Chemistry and Chemical Engineering Hunan Normal UniversityChangsha 410081China State Key Laboratory of Luminescent Materials and Devices South China Advanced Institute for Soft Matter Science and TechnologySouth China University of TechnologyGuangzhou 510640China Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China CAS Key Laboratory of Separation Sciences for Analytical Chemistry Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Institute of Advanced Science Facilities Shenzhen 518107China State Key Laboratory of Coal Conversion Institute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001China State Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsChinese Acade

With the advancement of modern science and technology, large scientific facilities are increasingly oriented toward demand and application, and can be used for basic research as well as serving multiple disciplines. Developing large scientific facilities and related analytical technologies enhances understanding of large scientific facilities and popularizes their application in research across multiple disciplines. The combination of light or neutron sources from large scientific facilities and advanced analytical technologies can be achieved for materials structure information, dynamics study of chemical reactions, high dissociation of biomolecules, 3D visualization of energy materials or biological samples, etc. We first introduce the progress of domestic large scientific facilities of synchrotron radiation(SR) and free electron lasers(FELs) with different wavelengths and neutron *** further discuss the comparison between Chinese and typical foreign facilities in X-ray radiation from X-ray tubes, synchrotrons, X-ray FELs, and neutron sources based on physical parameters of light and neutron sources. In addition, we focus on the technological progress and perspectives combined with advanced X-ray radiation and neutron sources of large scientific facilities in China, especially in the nanoscience fields of energy catalysis and biological science. We hope that this roadmap will provide references on technology and methods to experimental users, as well as prospects for future development of technologies based on large research infrastructure facilities. Comprehensive studies and guidelines for basic research to practical application in various disciplines can be made with the assistance of large scientific facilities.

关键词： large scientific facilities synchrotron radiation FEL light sources neutron sources spectroscopic analysis methods X-ray imaging techniques structural information chemical dynamics

Detection of heavy metals in water samples by laser-induced breakdown spectroscopy combined with annular groove graphite flakes

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Plasma Science and Technology 2019年第3期21卷 16-22页

作者： Li FANG Nanjing ZHAO Mingjun MA Deshuo MENG Yao JIA xingjiu huang Wenqing LIU Jianguo LIU Key Laboratory of Environmental Optics and Technology Anhui Institute of Optics and Fine MechanicsChinese Academy of Sciences Key Laboratory of Optical Monitoring Technology for Environment University of Science and Technology of China Institute of Intelligent Machines Chinese Academy of Sciences

The use of laser-induced breakdown spectroscopy(LIBS) for the analysis of heavy metals in water samples is investigated. Some factors such as splashing, surface ripples, extinction of emitted intensity, and a shorter plasma lifetime will influence the results if the water sample is directly measured. In order to avoid these disadvantages and the ‘coffee-ring effect', hydrophilic graphite flakes with annular grooves were used for the first time to enrich and concentrate heavy metals in water samples before being analyzed by LIBS. The proposed method and procedure have been evaluated to concentrate and analyze cadmium, chromium, copper, nickel, lead,and zinc in a water sample. The correlation coefficients were all above 0.99. The detection limits of 0.029, 0.087, 0.012, 0.083, 0.125, and 0.049 mgl^(-1) for Cd, Cr, Cu, Ni, Pb, and Zn,respectively, were obtained in samples prepared in a laboratory. With this structure, the heavy metals homogeneously distribute in the annular groove and the relative standard deviations are all below 6%. This method is very convenient and suitable for online in situ analysis of heavy metals.

关键词： laser-induced breakdown spectroscopy quantitative analysis heavy metals graphite flake

Characteristics of optical emission during laser-induced damage events of fused silica

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Chinese Optics Letters 2019年第12期17卷 92-97页

作者： Chao Shen Nanjing Zhao Jaka Pribosek Mingjun Ma Li Fang xingjiu huang Yujun Zhang Key Laboratory of Environmental Optics&Technology Anhui Institute of Optics and Fine MechanicsChinese Academy of SciencesHefei 230031China Key Laboratory of Optical Monitoring Technology for Environment Hefei 230031China Carinthian Tech Research 9524 VillachAustria Institute of Intelligent Machines Chinese Academy of SciencesHefei 230031China State Key Laboratory of Pulsed Power Laser Technology National University of Defense TechnologyHefei 230037China

Spontaneous optical emission properties of laser-produced plasma during laser damage events at input and exit surfaces of fused silica were retrieved and *** show that plasma at the input surface is much larger in size and exhibits significantly higher electron number density and excitation temperature,even when smaller laser energy was *** effect was attributed to the stronger laser–plasma coupling at the input *** addition,a strong continuum background containing three peaks at 1.3eV,1.9eV,and 2.2eV was observed at the exit surface,and possible origins for this effect are also discussed.

关键词： laser optical surface.

新型复合电极与偶氮染料分子的氧化降解反应的研究

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化学学报 2002年第4期60卷 574-579页

作者：蔡乃才黄行九刘娟龙飞罗力铭武汉大学化学与分子科学学院武汉430072

介绍了具有合成H2 O2 和光催化性能的双功能新型复合电极 .双功能复合电极是将TiO2 /C光催化剂负载在具有合成H2 O2 性能的新型载体上形成的 .在光反应器中 ,复合电极作阴极 ,钌 -钛不溶性电极作阳极 ,低压汞灯作光源 ,实现了光化学氧... 详细信息

介绍了具有合成H2 O2 和光催化性能的双功能新型复合电极 .双功能复合电极是将TiO2 /C光催化剂负载在具有合成H2 O2 性能的新型载体上形成的 .在光反应器中 ,复合电极作阴极 ,钌 -钛不溶性电极作阳极 ,低压汞灯作光源 ,实现了光化学氧化与光催化氧化在同一电极 /溶液界面上的联合作用 .当反应器工作时 ,复合电极中的TiO2 /C光催化层表面进行着光催化反应 ,在载体的三相界面上进行着O2 的 2电子还原生成H2 O2 的电化学反应 ,电流效率达 82 %(J =15mA/cm2 ) ,为·OH自由基的生成提供了物质源 ,而且氧的 2电子还原反应电位使其表面的TiO2 获得相对于平带电位约 +0 .5V的阳极偏压 ,改善了TiO2 的光催化活性 .实验结果表明 ,复合电极对提高偶氮染料分子活性艳红 (K 2BP)的氧化降解速度起了重要作用 .实验发现偶氮染料分子在复合电极表面的吸附量与反应速度密切相关 .文中讨论了复合电极的作用原理及偶氮染料分子的氧化降解过程 .

关键词：复合电极偶氮染料氧化降解反应光催化 TiO2 废水处理二氧化钛

5A02铝合金表面微纳结构的制备及防腐行为研究

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稀有金属材料与工程 2018年第9期47卷 2875-2880页

作者：刘聪李雪伍雷勇杰章桥新黄行九武汉理工大学湖北武汉430070 武汉科技大学湖北武汉430081 中国航天科工集团第九总体设计部湖北武汉430040

通过低成本的酸刻蚀、表面钝化处理在5A02铝合金基体表面构筑出二元微米级多孔梯田及絮状纳米粒子层结构,研究了该结构经氟硅烷化低表面能处理后的润湿及抗海水腐蚀特性。结果表明,制备表面获得了优异的超疏水特性,其水滴接触角为156.1... 详细信息

通过低成本的酸刻蚀、表面钝化处理在5A02铝合金基体表面构筑出二元微米级多孔梯田及絮状纳米粒子层结构,研究了该结构经氟硅烷化低表面能处理后的润湿及抗海水腐蚀特性。结果表明,制备表面获得了优异的超疏水特性,其水滴接触角为156.1°,接触角滞后为1.5°。通过电化学测试进一步表明钝化絮状纳米粒子层及超疏水膜层结构有效抑制了基体电化学腐蚀所必需的阴极和阳极反应,同时阻断了腐蚀介质与基体的接触,最终达到铝合金板表面腐蚀防护的目的,对拓宽铝合金材料的工程应用具有深远的意义。

关键词：铝合金微纳结构超疏水防腐

固相微萃取/二氧化锡气体传感器联用技术对果蔬中有机磷农药残留的快速检测

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分析化学 2005年第3期33卷 363-365页

作者：黄行九王连超孙宇峰孟凡利刘锦淮中国科学院智能机械研究所合肥230031 中国科学院智能机械研究所合肥230026 中国科学技术大学化学系

研究了固相微萃取(SPME)和二氧化锡气体传感器的联用技术对果蔬中有机磷农药残留乐果、氧乐果、甲胺磷、乙酰甲胺磷、马拉硫磷、敌百虫等的快速检测。结果表明,在85℃下,解吸8min,二氧化锡气体传感器在2min内完成对有机磷农药残留的快... 详细信息

研究了固相微萃取(SPME)和二氧化锡气体传感器的联用技术对果蔬中有机磷农药残留乐果、氧乐果、甲胺磷、乙酰甲胺磷、马拉硫磷、敌百虫等的快速检测。结果表明,在85℃下,解吸8min,二氧化锡气体传感器在2min内完成对有机磷农药残留的快速检测。零解吸时间测量的甲胺磷的动态响应曲线表明,SPME/二氧化锡气体传感器联用技术对分析SPME的解吸平衡非常有利。

关键词：固相微萃取二氧化锡气体传感器有机磷农药

基于聚多巴胺功能化石墨烯复合材料的聚苯乙烯微塑料电化学印迹传感器研究

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安徽工程大学学报 2022年第5期37卷 7-13页

作者：张龙柯杨猛黄行九中国科学院合肥物质科学研究院安徽合肥230031 中国科学技术大学科学岛分院安徽合肥230026

这项研究结合多巴胺的弱还原性和碱性条件下自聚合的性质,将盐酸多巴胺与氧化石墨烯一步法合成聚多巴胺功能化石墨烯复合材料(PDA-rGO)。PDA-rGO导电性能优异,并且含有大量的苯环结构可与聚苯乙烯微塑料产生π-π相互作用。利用滴涂的... 详细信息

这项研究结合多巴胺的弱还原性和碱性条件下自聚合的性质,将盐酸多巴胺与氧化石墨烯一步法合成聚多巴胺功能化石墨烯复合材料(PDA-rGO)。PDA-rGO导电性能优异,并且含有大量的苯环结构可与聚苯乙烯微塑料产生π-π相互作用。利用滴涂的方法修饰在玻碳电极上制备PDA-rGO电极,然后将修饰了聚苯乙烯微球的PDA-rGO电极置于邻苯二胺溶液中进行电聚合制备聚合物薄层,洗脱聚苯乙烯后留下与聚苯乙烯尺寸相同的识别位点,以铁氰化钾为分子探针研究电化学传感器对聚苯乙烯微塑料的检测性能。实验结果表明,电化学传感器在实际水样中可以检测1~600 ppb范围内的200 nm聚苯乙烯微塑料,为低浓度小尺寸微塑料的检测提供了一条新的思路。

关键词：聚苯乙烯微塑料石墨烯铁氰化钾电化学传感器聚多巴胺

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纳米材料与饮用水中微污染物的检测和去除

工程研究：跨学科视野中的工程 2011年第4期3卷 330-342页

作者：刘金云万玉腾刘锦淮付向前张晓嫚黄行九中国科学院合肥智能机械研究所合肥230031 中国科学技术大学化学与材料科学学院合肥230026

首先简要分析了饮用水中微污染物的种类、来源及其危害性,并指出纳米材料在饮用水微污染物的检测与去除中蕴含着巨大的发展潜力。其次,结合国内外相关研究进展,以及本课题组近年来在此领域开展的部分研究工作,阐述了纳米材料对有效检测... 详细信息

首先简要分析了饮用水中微污染物的种类、来源及其危害性,并指出纳米材料在饮用水微污染物的检测与去除中蕴含着巨大的发展潜力。其次,结合国内外相关研究进展,以及本课题组近年来在此领域开展的部分研究工作,阐述了纳米材料对有效检测与高效去除饮用水中微污染物的重要作用。其中,着重针对饮用水中的有机微污染物和重金属离子的检测,介绍了纳米电化学检测、纳米光学检测(包括荧光、旋光、表面增强拉曼光谱)以及电导型纳米传感检测的方法。对于饮用水净化,则以纳米材料吸附和光催化降解为例简要论述。最后,提出了未来纳米材料在饮用水中微污染物检测和去除领域发展的几点展望。

关键词：纳米材料饮用水微污染物检测净化

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冀北山地杨桦次生林不同林层的空间结构特征

东北林业大学学报 2014年第9期42卷 33-38页

作者：张曼高兴九孙海静崔丽红李永宁黄选瑞河北农业大学保定071000 河北省丰宁满族自治县国营林场

利用混交度、角尺度、大小比数和开阔比数4个空间结构参数,结合空间结构单元距离尺度,研究了冀北山地杨桦次生林更新层和乔木层(低林层、中林层和上林层)的空间结构特征。结果表明:乔木层和更新层平均混交度分别为0.520、0.228,差异较大... 详细信息

利用混交度、角尺度、大小比数和开阔比数4个空间结构参数,结合空间结构单元距离尺度,研究了冀北山地杨桦次生林更新层和乔木层(低林层、中林层和上林层)的空间结构特征。结果表明:乔木层和更新层平均混交度分别为0.520、0.228,差异较大,乔木层混交度随林层增加而降低;乔木层和更新层的平均角尺度分别为0.575、0.530,属于聚集分布,乔木层聚集强度随林层增加而降低;乔木层和更新层平均大小比数分别为0.493、0.511,各等级林木分布较均匀;乔木层平均开阔比数为0.713,处于开阔的光环境中;随着林层增加,大小比数呈下降趋势,开阔比数呈增加的趋势,大小比数与开阔比数呈极显著负相关;参照木与4株最近相邻木的平均距离随林层增加呈递增趋势,但大部分相邻木分布在3 m以内。

关键词：杨桦次生林空间结构混交度角尺度大小比数开阔比数空间结构单元距离