检索结果-南通市图书馆

In Situ Raman Monitoring of Trace Antibiotics in Different Harsh Water Environments

Energy & Environmental Materials 2024年第1期7卷 284-293页

作者： Chundong Liu Fengcai Lei Maogang Gong Xiaoming Zhou Xiaofei Zhao Zhen Li Chao Zhang baoyuan man Jing Yu School of Physics and Electronics Institute of Materials and Clean EnergyShandong Normal UniversityJinan 250014China College of Chemistry Chemical Engineering and Materials ScienceInstitute of Biomedical SciencesShandong Normal UniversityJinan 250014China Department of Physics and Astronomy University of KansasLawrenceKansas 66045USA Shandong Provincial Hospital Shandong First Medical UniversityJinan 250021China

In situ surface-enhanced Raman scattering(SERS)is a widely used operando analytical technique,while facing numerous complex factors in applications under aqueous environment,such as low detection sensitivity,poor anti-interference capability,etc.,resulting in unreliable *** address these issues,herein a new hydrophobic SERS strategy has been *** comprehensively designing and researching a SERS-active structure of superhydrophobic ZnO/Ag nanowires,we demonstrate that hydrophobicity can not only draw analytes from water onto substrate,but also adjust"hottest spot"from the bottom of the nanowires to the *** a result,the structure can simultaneously concentrate the dispersed molecules in water and the enhanced electric field in structure into a same zone,while perfecting its own anti-interference *** underwater in situ analytical enhancement factor of this platform is as high as 1.67×10^(11),and the operando limited of detection for metronidazole(MNZ)reaches to 10^(-9)*** importantly,we also successfully generalized this structure to various real in situ detection scenarios,including on-site detection of MNZ in corrosive urine,real-time warning of wrong dose of MNZ during intravenous therapy,in situ monitoring of MNZ in flowing wastewater with particulate interference,etc.,demonstrating the great application potential of this hydrophobic *** work realizes a synergistic promotion for in situ SERS performance under aqueous environment,and also provides a novel view for improving other in situ analytical techniques.

关键词： antibiotic detection hydrophobic structure In situ Raman metronidazole wettability

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Passively mode-locked Er-doped fiber laser based on SnS2 nanosheets as a saturable absorber

引用

Photonics Research 2018年第2期6卷 72-76页

作者： KANGDI NIU RuYI SUN QINGYUN CHEN baoyuan man AND HUANIAN ZHANG Shandong Provincial Key Laboratory of Optics and Photonic Devices School of Physics and Electronics Shandong Normal University Jinan 250014 China Institute of Data Science and Technology Shandong Normal University Jinan 250014 China

In this paper, tin disulfide （SnS2）, a two-dimensional （2D） n-type direct bandgap layered metal dichalcogenide with a gap value of 2.24 eV, was employed as a saturable absorber. Its appearance and nonlinear saturable ab- sorption characteristics were also investigated experimentally. SnSz-PVA （polyvinyl alcohol） film was successfully prepared and employed as a mode-locker for achieving a mode-locked Er-doped fiber laser with a pulse width of 623 fs at a pulse repetition rate of 29.33 MHz. The results prove that SnS2 nanosheets will have wide potential ultrafast photonic applications due to their suitable bandgap value and excellent nonlinear saturable absorption characteristics.

关键词： (160.6000) Semiconductor materials (140.4050) Mode-locked lasers (140.3500) Lasers, erbium.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Compact Q-switched 2 μm Tm:GdVO4 laser with MoS2 absorber

引用

Photonics Research 2015年第5期3卷 256-259页

作者： Pingguang Ge Jie Liu Shouzhen Jiang Yuanyuan Xu baoyuan man Shandong Provincial Key Laboratory of Optics and Photonic Device School of Physics and ElectronicsShandong Normal University

A molybdenum disulfide（Mo S2） saturable absorber was fabricated by thermally decomposing the ammonium thiomolybdate. By using the MoS2 absorber, a compact diode-pumped passively Q-switched Tm:GdVO4 laser has been demonstrated. A stable Q-switched laser with repetition rates from 25.58 to 48.09 kHz was *** average output power was 100 mW with the shortest pulse duration of 0.8 μs. Maximum pulse energy is 2.08 μJat center of 1902 nm.

关键词： Mo m Tm:GdVO4 laser with MoS2 absorber Compact Q-switched 2 Tm

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Study of thermoelectric enhanced SERS and photocatalysis with ZnO-metal nanorod arrays

引用

Nano Research 2023年第4期16卷 5427-5435页

作者： Baoqiang Du Jibing Tan Chang Ji Mingrui Shao Xiaofei Zhao Jing Yu Chao Zhang Chuansong Chen Hui Pan baoyuan man Zhen Li School of Physics and Electronics Collaborative Innovation Center of Light Manipulations and ApplicationsShandong Normal UniversityJinan 250014China Institute of Applied Physics and Materials Engineering University of MacaoMacao 999078China

Herein,a thermoelectric induced surface-enhanced Raman scattering(SERS)substrate consisting of ZnO nanorod arrays and metal nanoparticles is *** intensities of SERS signals are further enhanced by an order of magnitude and the limit of detection(LOD)for the molecules is reduced by at least one order of magnitude after the application of a thermoelectric *** enhancement mechanism is analyzed carefully and thoroughly based on the experimental and theoretical results,thus proving that the thermoelectric-induced enhancement of the SERS signals should be classified as a chemical ***,it is proved that the electric regulation mechanism is universally applicable,and the fabricated substrate realizes enormous enhancements for various types of molecules,such as rhodamine 6G,methyl orange,crystal violet,amaranth,and biological ***,the proposed electric-induced SERS(E-SERS)substrate is also realized to monitor and manipulate the plasmon-activated redox *** believe that this study can promote the course of the research on ESERS and plasmon-enhanced photocatalysts.

关键词： ZnO electric-induced surface-enhanced Raman scattering(E-SERS) temperature gradient photocatalysis local surface plasmon resonance(LSPR)

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Tuning the Water Desalination Performance of Graphenic Layered Nanomaterials by Element Doping and Inter-Layer Spacing

引用

Chinese Physics Letters 2020年第11期37卷 48-54页

作者： Fuxin Wang Chao Zhang Yanmei Yang Yuanyuan Qu Yong-Qiang Li baoyuan man Weifeng Li School of Physics and State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China Collaborative Innovation Center of Light manipulations and Applications Shandong Normal UniversityJinan 250358China College of Chemistry Chemical Engineering and Materials ScienceCollaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of ShandongKey Laboratory of Molecular and Nano Probes(Ministry of Education)Shandong Normal UniversityJinan 250014China

Through atomic molecular dynamics simulations,we investigate the performance of two graphenic materials,boron(BC3)and nitrogen doped graphene(C3 N),for seawater desalination and salt rejection,and take pristine graphene as a *** of inter-layer separation have been *** water is filtered along the transverse directions of three-layered nanomaterials,the optimal inter-layer separation is 0.7–0.9 nm,which results in high water permeability and salt obstruction *** water permeability is considerably higher than porous graphene filter,and is about two orders of magnitude higher than commercial reverse osmosis(RO)*** changing the inter-layer spacing,the water permeability of three graphenic layered nanomaterials follows an order of C3 N≥GRA>BC3 under the same working *** three nanomaterials,BC3 is more sensitive to inter-layer separation which offers a possibility to control the water desalination speed by mechanically changing the membrane *** is caused by the intrinsic charge transfer inside BC3 that results in periodic distributed water clusters around the layer *** present results reveal the high potentiality of multi-layered graphenic materials for controlled water *** is hopeful that the present work can guide design and fabrication of highly efficient and tunable desalination architectures.

关键词： separation layer filtered

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Ferroelectrically modulate the Fermi level of graphene oxide to enhance SERS response

引用

Opto-Electronic Advances 2023年第11期6卷 44-53页

作者： Mingrui Shao Chang Ji Jibing Tan Baoqiang Du Xiaofei Zhao Jing Yu baoyuan man Kaichen Xu Chao Zhang Zhen Li Institute of Materials and Clean Energy School of Physics and ElectronicsShandong Normal UniversityJinan 250014China State Key Laboratory of Fluid Power and Mechatronic Systems School of Mechanical EngineeringZhejiang UniversityHangzhou 310030China

Surface-enhanced Raman scattering(SERS)substrates based on chemical mechanism(CM)have received widespread attentions for the stable and repeatable signal output due to their excellent chemical stability,uniform molecular adsorption and controllable molecular ***,it remains huge challenges to achieve the optimal SERS signal for diverse molecules with different band structures on the same ***,we demonstrate a graphene oxide(GO)energy band regulation strategy through ferroelectric polarization to facilitate the charge transfer process for improving SERS *** Fermi level(Ef)of GO can be flexibly manipulated by adjusting the ferroelectric polarization direction or the temperature of the ferroelectric ***,kelvin probe force microscopy(KPFM)is employed to quantitatively analyze the Ef of ***,the density functional theory calculations are also performed to verify the proposed modulation ***,the SERS response of probe molecules with different band structures(R6G,CV,MB,PNTP)can be improved through polarization direction or temperature changes without the necessity to redesign the SERS *** work provides a novel insight into the SERS substrate design based on CM and is expected to be applied to other two-dimensional materials.

关键词： surface-enhanced Raman scattering(SERS) ferroelectric PMN-PT graphene oxide(GO) photo-induced charge transfer(PICT)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

聚四氟乙烯材料表面激光改性与刻蚀

引用

光学学报 2006年第7期26卷 1073-1077页

作者：刘爱华张运海满宝元山东师范大学物理与电子科学学院济南250014

利用波长为248 nm的准分子激光束在不同激光能量密度下照射聚四氟乙烯(PTFE)材料的表面,并用扫描电镜(SEM)、X射线光电子能谱(XPS)、拉曼(Raman)光谱等手段对激光处理前后样品的表面形貌、化学成分和结构进行测量和分析,进而对激光与聚... 详细信息

利用波长为248 nm的准分子激光束在不同激光能量密度下照射聚四氟乙烯(PTFE)材料的表面,并用扫描电镜(SEM)、X射线光电子能谱(XPS)、拉曼(Raman)光谱等手段对激光处理前后样品的表面形貌、化学成分和结构进行测量和分析,进而对激光与聚四氟乙烯相互作用的机理进行了研究。实验结果表明,激光辐照使聚四氟乙烯表面产生去氟效应,导致表面碳化、分子链的交联以及含氧基团的产生,随着激光能量密度的增加,C=C双键逐渐形成。这些结构的变化可以导致表面硬度和粘结性增强。激光能量密度的大小对照射后样品表面的物理性质和化学结构有着重要的影响,它是聚合物表面激光改性和烧蚀的关键因素。

关键词：激光与物质相互作用激光表面改性激光表面刻蚀聚四氟乙烯

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

脉冲激光烧蚀Hg_(0.8)Cd_(0.2)Te晶体过程的分析

引用

山东师范大学学报（自然科学版） 2007年第2期22卷 42-43页

作者：郭娟满宝元山东师范大学物理与电子科学学院济南250014

文中测量了Hg0.8Cd0.2Te靶在波长为1064nm、脉宽10ns的脉冲激光辐照下的蒸发损伤阈值,理论计算值与实验结果符合得很好.进而根据能量守恒定律数值计算了Hg0.8Cd0.2Te的蒸发温度.

关键词：激光烧蚀 Hg0.8Cd0.2Te晶体蒸发阈值

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

不同气压背景下激光烧蚀Al靶产生等离子体特性分析

引用

光谱学与光谱分析 1998年第4期18卷 411-415页

作者：满宝元王公堂刘爱华王象泰山东师范大学物理系

用时间和空间分辨诊断技术研究了脉冲激光烧蚀不同气压环境下金属Ａｌ靶过程中产生的等离子体羽的特性。

关键词：激光烧蚀时间分辨光谱等离子体铝靶气压

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

脉冲激光烧蚀碲镉汞材料的等离子体发射谱

引用

光学学报 2005年第5期25卷 678-682页

作者：张运海王宝泉吕国华孙刚刘玫张志广满宝元山东师范大学物理与电子科学学院济南250014 德州学院物理系德州253023

脉冲激光辐照处于不同背景气压下的Hg0.8Cd0.2Te材料表面,用时间和空间分辨诊断技术探测了激光照射后产生的等离子体发射谱,根据所获得的飞行时间谱测量了等离子体中粒子的出射速度,结果表明粒子速度随着出射距离的增加迅速减小,且背景... 详细信息

脉冲激光辐照处于不同背景气压下的Hg0.8Cd0.2Te材料表面,用时间和空间分辨诊断技术探测了激光照射后产生的等离子体发射谱,根据所获得的飞行时间谱测量了等离子体中粒子的出射速度,结果表明粒子速度随着出射距离的增加迅速减小,且背景气压对出射速度有很大的影响,而激光能量对粒子速度的影响不大。另外根据谱线的展宽计算了等离子体中的电子密度,结果表明,电子密度在激光辐照样品后的短时间内迅速减小,且电子密度最大的位置不是出现在靶的表面而是在距表面一定距离处。

关键词：光谱学激光等离子体发射谱飞行时间谱粒子速度电子密度

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：