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Synthesis and Soft Magnetic Properties of Mg-doped Ni Nanoparticles

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Chemical Research in Chinese Universities 2008年第5期24卷 534-536页

作者： YANG jing-hai FENG Bo LIU Yang ZHANG Yong-jun YANG Li-li WANG Ya-xin lang ji-hui WANG Dan-dan The Institute of Condensed State Physics Jilin Normal University Siping 136000 P. R. China Key Laboratory of Excited State Processes Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 P. R. China Graduate School of the Chinese Academy of Sciences Beijing 100049 P. R. China

Mg-doped Ni nanoparticles with good soft magnetic properties were prepared with the sol-gel method and were sintered at 400, 500, 600, and 900℃ in argon atmosphere, respectively. The structure and magnetic properties of the samples were studied by means of X-ray diffraction, TEM, and VSM magnetometers. X-Ray powder diffraction results show that Ni-Mg solid solution was formed with the single phase of face-centered cubic（fcc） structure. The particle size became larger with the increase of temperature. When the sintering temperature was 400 °C, the particle size was 6.3 nm, whereas it was 46.2 nm at 900 °C. Both the saturation magnetization（Ms） and the coercivity were enhanced with the increase of the particle size. The Ms values of the samples ranged from 18.965 to 46.766 emu/g and the coercivity ranged from 1051.3568 to 9145.0848 A/m.

关键词： Mg Ni Nanoparticles Soft magnetic property Sol-gel method

Synthesis and Optical Properties of Ce-doped ZnO

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Chemical Research in Chinese Universities 2008年第3期24卷 266-269页

作者： YANG jing-hai GAO Ming ZHANG Yong-jun YANG Li-li lang ji-hui WANG Dan-dan WANG Ya-xin LIU hui-lian FAN Hou-gang WEI Mao-bin LIU Fu-zhu The Institute of Condensed State Physics Jilin Normal University Siping 136000 P R. China Key Laboratory of Excited State Processes Changehun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changehun 130033 P R. China School of Material Science and Engineering Jiangsu University Zhenjiang 210013 P. R. China

ZnO nanorods were synthesized using the sol-gel method, and the effects of annealing temperature and Ce doping on the morphologies and optical properties of ZnO nanostructures were investigated in detail. The XRD measurements showed that the as-synthesized ZnO nanostructures had a hexagonal wurtzite structure. SEM images showed that uniform nanorods formed at 900 °C. Photoluminescence measurements showed an ultraviolet emission peak and a relatively broad visible light emission peak for the samples sintered at different temperatures. The UV emission peak bathochromically shifted when the annealing temperature rose from 850 to 1000 °C. Ce doping decreased the synthesized temperature of the ZnO nanorods to 500 °C, and the UV peaks hypsochromically shifted.

关键词： Annealing temperature Ce-doped ZnO Optical property

不同衬底对CBD法制备ZnO纳米棒阵列的影响

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吉林大学学报（理学版） 2012年第3期50卷 563-566页

作者：王立王德军郎集会吉林师范大学物理学院吉林四平136000 长春大学成人教育学院长春130022

采用化学溶液沉积(CBD)法在3种不同衬底上生长ZnO纳米棒阵列,并利用X射线衍射(XRD)、扫描电子显微镜(SEM)、原子力显微镜(AFM)和光致发光(PL)谱研究纳米棒的结构、形貌和光学特性.结果表明:产物均为ZnO纳米棒状结构且均匀分布在衬底上,... 详细信息

采用化学溶液沉积(CBD)法在3种不同衬底上生长ZnO纳米棒阵列,并利用X射线衍射(XRD)、扫描电子显微镜(SEM)、原子力显微镜(AFM)和光致发光(PL)谱研究纳米棒的结构、形貌和光学特性.结果表明:产物均为ZnO纳米棒状结构且均匀分布在衬底上,其中在氧化铟锡(ITO)导电玻璃衬底和玻璃衬底上生长的ZnO结晶质量优于在硅衬底上生长的样品,而纳米棒在玻璃衬底上的覆盖密度最大且取向均一;在Si衬底上生长纳米棒的发光性能最好;3个样品的紫外峰位均发生微小移动,这是由于纳米棒尺寸不同导致应力发生变化所致.

关键词： ZnO纳米棒化学溶液沉积法衬底光学特性

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论新质生产力的大生态观

中国地质大学学报(社会科学版) 2025年第1期25卷 1-10页

作者：郎慧慧山东大学马克思主义学院山东济南250100

大生态观是一种基于宽阔视野的大世界观方法论,强调自然生态与社会生态有机统一的现代生态理念。基于系统思维,在对马克思生产力生态思想进行辩证汲取基础上形成的、与中国共产党生态生产力思想一脉相承的新质生产力的大生态观,为新时... 详细信息

大生态观是一种基于宽阔视野的大世界观方法论,强调自然生态与社会生态有机统一的现代生态理念。基于系统思维,在对马克思生产力生态思想进行辩证汲取基础上形成的、与中国共产党生态生产力思想一脉相承的新质生产力的大生态观,为新时代实现生产力生态化跃迁发展提供了新思路。从整体来看,新质生产力的大生态观是由内部要素生态、结构载体生态、外部环境生态三层结构构成的大生态系统。针对新质生产力大生态系统存在的内部系统发展不足及各子系统间衔接不畅的问题,必须坚持“主体-技术-产业-环境”协同发力,以系统性思维实现各要素的沟通与互动,更好地促进新质生产力生态功能整体效能的提升。这对推动经济社会全面绿色低碳转型,实现人与自然和谐共生的现代化意义重大。

关键词：新质生产力大生态观绿色科技创新现代化产业体系

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基于光电效应的普朗克常数的测定与分析

吉林师范大学学报（自然科学版） 2015年第1期36卷 104-106页

作者：郎集会范雯琦吉林师范大学物理学院吉林四平136000

利用光电效应法测量普朗克常数是一种简单且有效的实验方法.在大学物理光电效应测量普朗克常数的近代实验中,采用PC-Ⅱ型普朗克常数测定仪对普朗克常数进行测定和分析.该文采用了上述仪器对普朗克常数进行了测量和理论分析,用"减速电位... 详细信息

利用光电效应法测量普朗克常数是一种简单且有效的实验方法.在大学物理光电效应测量普朗克常数的近代实验中,采用PC-Ⅱ型普朗克常数测定仪对普朗克常数进行测定和分析.该文采用了上述仪器对普朗克常数进行了测量和理论分析,用"减速电位法"测遏止电压,应用数学中的斜率法进行分析,克服了传统实验的困难,实验操作可重复好.光电效应已经广泛地应用于各科技领域,利用光电效应制成的光电元件(如光电管、光电池)已成为生产和科研中不可缺少的器件.

关键词：光电效应普朗克常数遏止电压

氢气、氨气共同热处理的TiO_2纳米棒价带边的演化

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吉林师范大学学报（自然科学版） 2017年第4期38卷 25-35页

作者：张旗郎集会闫永胜江苏大学化学与化工学院江苏镇江212013 吉林师范大学物理学院吉林四平136000

TiO_2基光催化材料是太阳能光催化/光电化学水解制氢领域中研究最早、使用最广泛、最重要的材料之一.经由氢气(H_2)、氨气(NH_3)单独或共同热处理,来窄化TiO_2的光学带隙的研究工作也较多,但多数工作局限于常规温度短时间(500℃/1 h)退... 详细信息

TiO_2基光催化材料是太阳能光催化/光电化学水解制氢领域中研究最早、使用最广泛、最重要的材料之一.经由氢气(H_2)、氨气(NH_3)单独或共同热处理,来窄化TiO_2的光学带隙的研究工作也较多,但多数工作局限于常规温度短时间(500℃/1 h)退火.对于从(500℃/5 h)常规时常,直到相对较高温度较长时常(900℃/9 h)的条件下,TiO_2基材料的价带边演化情况的研究,还少见报道.本文以水热生长在碳布(Carbon Cloth/C)上TiO_2纳米棒阵列(TiO_2NRAs)为研究对象,经由常规(500℃/5 h)到相对极限条件(900℃/9 h)下,H_2/NH_3单独热处理以及顺次热处理后,系统研究了材料的价带边的演化情况.结果表明,随着热处理温度升高,时间加长,材料表面顺次出现了TiO_xN_y类三元化合物及Ti_xN_y,价带边向真空能级出现明显蓝移.这对进一步了解N掺杂TiO_2基纳米材料的光催化/光电化学过程的机制问题将提供有益的帮助和启发.

关键词：二氧化钛热处理加氢氮化价带边

Beyond the tumor region:Peritumoral radiomics enhances prognostic accuracy in locally advanced rectal cancer

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World Journal of Gastroenterology 2025年第8期31卷 49-65页

作者： Zhi-Ying Liang Mao-Li Yu hui Yang Hao-jiang Li hui Xie Chun-Yan Cui Wei-jing Zhang Chao Luo Pei-Qiang Cai Xiao-Feng Lin Kun-Feng Liu lang Xiong Li-Zhi Liu Bi-Yun Chen Department of Radiology State Key Laboratory of Oncology in South ChinaGuangdong Provincial Clinical Research Center for CancerSun Yat-sen University Cancer CenterGuangzhou 510060Guangdong ProvinceChina Department of Radiology West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina West China School of Medicine Sichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Medical Imaging First Affiliated Hospital of Gannan Medical UniversityGanzhou 341000Jiangxi ProvinceChina

BACKGROUND The peritumoral region possesses attributes that promote cancer growth and ***,the potential prognostic biomarkers in this region remain relatively underexplored in *** To investigate the prognostic value and importance of peritumoral radiomics in locally advanced rectal cancer(LARC).METHODS This retrospective study included 409 patients with biopsy-confirmed LARC treated with neoadjuvant chemoradiotherapy and *** were divided into training(n=273)and validation(n=136)*** on intratumoral and peritumoral radiomic features extracted from pretreatment axial high-resolution small-field-of-view T2-weighted images,multivariate Cox models for progression-free survival(PFS)prediction were developed with or without clinicoradiological features and evaluated with Harrell’s concordance index(C-index),calibration curve,and decision curve *** stratification,Kaplan-Meier analysis,and permutation feature importance analysis were *** The comprehensive integrated clinical-radiological-omics model(ModelICRO)integrating seven peritumoral,three intratumoral,and four clinicoradiological features achieved the highest C-indices(0.836 and 0.801 in the training and validation sets,respectively).This model showed robust calibration and better clinical net benefits,effectively distinguished high-risk from low-risk patients(PFS:97.2%vs 67.6%and 95.4%vs 64.8%in the training and validation sets,respectively;both P<0.001).Three most influential predictors in the comprehensive ModelICRO were,in order,a peritumoral,an intratumoral,and a clinicoradiological ***,the peritumoral model outperformed the intratumoral model(C-index:0.754 vs 0.670;P=0.015);peritumoral features significantly enhanced the performance of models based on clinicoradiological or intratumoral features or their *** Peritumoral radiomics holds greater prognostic value than intratumoral radiomics for predicting PFS in L

关键词： Rectal cancer Peritumoral radiomics Intratumoral radiomics Prognosis analysis Variable importance analysis Tumor microenvironment

光电化学(PEC)制氢中太阳能转换效率的评价方式之比较

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吉林师范大学学报（自然科学版） 2016年第4期37卷 84-88页

作者：张旗郎集会杨景海吉林师范大学物理学院吉林四平136000

相对于人口的迅猛发展,能源危机日趋严重.太阳能光电化学(PEC)水解制氢是开发利用新能源的一个选项,是将太阳能直接转换成化学能领域中的研究热点之一.这里,系统归纳了文献中出现的关于PEC水解制氢过程中太阳能转换效率的评价方式,并加... 详细信息

相对于人口的迅猛发展,能源危机日趋严重.太阳能光电化学(PEC)水解制氢是开发利用新能源的一个选项,是将太阳能直接转换成化学能领域中的研究热点之一.这里,系统归纳了文献中出现的关于PEC水解制氢过程中太阳能转换效率的评价方式,并加以对比,阐述了其中的优缺点,提出了如何恰当地选择评价参数以求能更好地估算PEC水解制氢过程中太阳能转换效率的建议.这项工作将为太阳能到化学能的转化和利用研究提供有益帮助.

关键词：太阳能化学能光电化学(PEC) 水解制氢转换效率

A versatile synthetic strategy towards rare earth based metal-organic frameworks

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Science China Chemistry 2025年

作者： Quan Shi Yun-Hao Xu Ming-hui Chen Peng Zhao Wen-Bo Deng ji Xiong Kai Guo Ya-Qing Feng Bao Zhang School of Chemical Engineering and Technology Tianjin University Tianjin Collaborative Innovation Center of Chemical Science and Engineering Guangdong Laboratory Chemistry & Fine Chemical Industry jieyang Center

Rare earth metal-organic frameworks (RE-MOFs) have drawn wide attention owing to diverse network structures and various application ***,due to the unpredictable formation of the nodes,it is still challenging to design novel RE-MOFs.A novel versatile strategy was developed employing a RE-acetate complex (RE2(CH3COO)6·4H2O) as a precursor to construct RE-MOFs.2D RE-MOFs (RE-DBP) and 3D RE-MOFs (RE-TCPP) could be obtained by using dicarboxylic porphyrin ligands H2DBP and tetracarboxylic porphyrin ligands H2TCPP,*** RE-MOFs were further synthesized to verify the universality of the *** crystalline RE-MOFs could also be prepared at room temperature via the developed strategy,which could significantly promote large-scale preparation and practical application of *** proof of the concept,the performance of porphyrin-based RE-MOFs was investigated in the photocatalytic cycloaddition of CO2with *** the RE-DBP(Co) MOFs,Tb-DBP(Co) exhibited the best photocatalytic performance,which was also greater than that of the corresponding 3D MOF Tb-TCPP(Co) due to the optimal 2D structure and thus the accelerated photogenerated charge separation and transfer *** work not only provides a novel versatile strategy to design and develop RE-MOFs,but also proposes a promising approach for the potential bulk production of RE-MOFs at room temperature.

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