检索结果-南通市图书馆

Biomimetic MXene membranes with negatively thermo-responsive switchable 2D nanochannels for graded molecular sieving

引用

Green Energy & Environment 2024年第6期9卷 1058-1067页

作者： Yi Wang Yangyang Wang Chang Liu Dongjian Shi Weifu Dong Baoliang Peng Liangliang Dong mingqing chen The Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxiJiangsu214122China International Research Center for Photo-responsive Molecules and Materials Jiangnan UniversityWuxiJiangsu214122China Research Institute of Petroleum Exploration&Development(RIPED) PetroChina/Key Laboratory of Oilfield ChemistryCNPCBeijing100083China

Negatively thermo-responsive 2D membranes,which mimic the stomatal opening/closing of plants,have drawn substantial interest for tunable molecular separation ***,these membranes are still restricted significantly on account of low water permeability and poor dynamic tunability of 2D nanochannels under temperature ***,we present a biomimetic negatively thermo-responsive MXene membrane by covalently grafting poly(N-isopropylacrylamide)(PNIPAm)onto MXene *** uniformly grafted PNIPAm polymer chains can enlarge the interlayer spacings for increasing water permeability while also allowing more tunability of 2D nanochannels for enhancing the capability of gradually separating multiple molecules of different *** expected,the constructed membrane exhibits ultrahigh water permeance of 95.6 L m^(-2) h^(-1) bar^(-1) at 25℃,which is eight-fold higher than the state-of-the-art negatively thermoresponsive 2D ***,the highly temperature-tunable 2D nanochannels enable the constructed membrane to perform excellent graded molecular sieving for dye-and antibiotic-based ternary *** strategy provides new perspectives in engineering smart 2D membrane and expands the scope of temperature-responsive membranes,showing promising applications in micro/nanofluidics and molecular separation.

关键词： Thermo-responsive 2D membrane MXene nanosheets PNIPAm Temperature-tunable 2D nanochannels Graded molecular sieving

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

Ecological Restoration Technologies of Urban Artificial Landscape Lakes

引用

Meteorological and Environmental Research 2024年第3期15卷 21-22,31页

作者： Yuyue MA Shengrong YAN Yi an chen Jiafeng SUN mingqing chen School of Environmental and Biological Engineering Nantong College of Science and TechnologyNantong 226007China School of Chemical and Material Engineering Jiangnan UniversityWuxi 214122China

Aiming at the problems of water pollution and ecological environment degradation in urban artificial landscape lakes,the ecological restoration technologies of artificial landscape lakes at home and abroad were studie... 详细信息

关键词： Artificial landscape lake Ecological restoration technology City

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

Comparison and Selection of Water Restoration Techniques for Artificial Landscape Lakes in Nantong City

引用

Agricultural Biotechnology 2024年第3期13卷 90-92,95页

作者： Shengrong YAN Yuyue MA Yi'an chen Jiafeng SUN mingqing chen College of Environmental and Biological Engineering Nantong College of Science and TechnologyNantong 226007China School of Chemical and Material Engineering Jiangnan UniversityWuxi 214122China

As an important part of urban infrastructure,urban water system is of great and far-reaching significance for ensuring urban flood control and waterlogging safety,protecting ecological environment and building livable *** the urban water system of Nantong as an example,Nantong Water Resources Bureau issued R evision of Nantong Urban Water System Planning in 2017,and put forward the construction of the"two circles,eight lakes and nine veins"water system layout,giving new vitality to the urban water *** view of problems existing in newly excavated artificial landscape lakes,such as fragile water ecosystem,strong eutrophication trend,poor environmental sensory effect and unsatisfactory water landscape effect,it is urgent to study the in-situ water ecological restoration technique of"algae-controlling zooplankton+submerged plant community"to build a"grass-type clear water"ecosystem for artificial landscape lakes,so as to improve the water sensory index and self-purification ability and finally realize the double improvement of"sensory effect and water quality"of artificial landscape lakes.

关键词： Water body remediation technique Artificial landscape lake Comparison and selection Nantong City

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

EVA生产技术研究进展及市场情况

引用

合成树脂及塑料 2024年第4期41卷 83-86页

作者：陈明清王英重庆化工职业学院重庆401220

综述了乙烯-乙酸乙烯酯共聚物(EVA)的主要生产工艺以及在我国的生产研发历程。分析了2021年以来我国EVA的产能、产量、进出口量及消费量。EVA价格影响因素主要为国内外宏观经济、国家政策,以及光伏产业链结构调整。EVA生产需要加强技术... 详细信息

综述了乙烯-乙酸乙烯酯共聚物(EVA)的主要生产工艺以及在我国的生产研发历程。分析了2021年以来我国EVA的产能、产量、进出口量及消费量。EVA价格影响因素主要为国内外宏观经济、国家政策,以及光伏产业链结构调整。EVA生产需要加强技术创新和产品结构调整,满足国内光伏胶膜等高端市场的消费需求。

关键词：乙烯-乙酸乙烯酯共聚物生产技术产能市场

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

载有左氧氟沙星的普鲁兰多糖薄膜用于伤口敷料

引用

功能高分子学报 2024年第2期37卷 138-147页

作者：赵琦袁凤来陈明清施冬健江南大学化学与材料工程学院合成与生物胶体教育部重点实验室江苏无锡214122 江南大学附属医院江苏无锡214043

以普鲁兰多糖(Pullulan)为原料、三偏磷酸钠(STMP)为交联剂、甘油(Glycerol)为增塑剂,在碱性条件下,制备得到载有抗菌药物左氧氟沙星(Levofloxacin)的普鲁兰多糖复合薄膜。对薄膜的化学结构、透明度、耐水性能、吸水性能、水蒸气透过性... 详细信息

以普鲁兰多糖(Pullulan)为原料、三偏磷酸钠(STMP)为交联剂、甘油(Glycerol)为增塑剂,在碱性条件下,制备得到载有抗菌药物左氧氟沙星(Levofloxacin)的普鲁兰多糖复合薄膜。对薄膜的化学结构、透明度、耐水性能、吸水性能、水蒸气透过性能、力学性能、抗菌性以及生物相容性进行了研究。结果表明,当STMP的添加量(与普鲁兰多糖的质量比,余类推)为10%、甘油添加量为30%、NaOH添加量为0.4%、左氧氟沙星添加量为1%时,得到的薄膜具有较高的耐水性、吸水性和透明度,以及良好的力学性能等,在水中浸泡24 h后的质量损失为38.74%,同时对金黄色葡萄球菌和大肠杆菌的抗菌率达到近100%,生物相容性较好。

关键词：普鲁兰多糖三偏磷酸钠交联耐水性伤口敷料

来源：

维普期刊数据库博看期刊

同方期刊数据库

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

软弱结构面参数对顺层岩质边坡动力响应的影响研究

引用

有色金属（矿山部分） 2024年第3期76卷 86-94页

作者：陈文倩陈俊智陈明清安南任春芳昆明理工大学国土资源工程学院昆明650093

为了探究地震作用下软弱结构面对岩质边坡动力响应特征的影响。以云南省某露天矿山边坡为研究背景,利用有限差分软件中的非线性动力分析法对顺层岩质边坡进行动力计算,通过控制变量法设计了一系列的数值实验,探究了软弱结构面参数的改... 详细信息

为了探究地震作用下软弱结构面对岩质边坡动力响应特征的影响。以云南省某露天矿山边坡为研究背景,利用有限差分软件中的非线性动力分析法对顺层岩质边坡进行动力计算,通过控制变量法设计了一系列的数值实验,探究了软弱结构面参数的改变对岩质边坡动力响应的影响规律,再基于正交试验以及极差分析法对影响岩质边坡动力响应的结构面参数进行了敏感性分析。结果表明:结构面参数的改变对于顺层边坡的动力响应有较大影响;各影响因子对顺层岩质边坡动力响应影响程度大小排序为结构面黏聚力>结构面倾角>结构面内摩擦角>结构面厚度。动力响应的研究可为地处地震频发区域的顺层岩质边坡提供抗震依据。

关键词：软弱结构面动力响应正交试验数值模拟顺层边坡

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

用于正电子断层扫描成像的^(68)Ga标记PM_(2.5)模拟粒子的制备及其活体示踪

引用

无机化学学报 2024年第4期40卷 669-676页

作者：潘栋辉徐宇平王辛宇王立振严骏杰施冬健杨敏陈明清江南大学化学与材料工程学院合成与生物胶体教育部重点实验室无锡214122 江苏省原子医学研究所国家卫生健康委员会核医学重点实验室江苏省分子核医学重点实验室无锡214063

将黑色素纳米颗粒(melanin nanoparticle,MNP)经聚乙二醇(polyethylene glycol,PEG)修饰制备得到PEG-MNP,随后通过与放射性的^(68)Ga^(3+)离子螯合,高标记产率地制备得到^(68)Ga-PEG-MNP,标记产物稳定性良好。进一步将^(68)Ga-PEG-MNP通过雾化方式制备得到^(68)Ga-PEG-MNP PM_(2.5)(particulate matter _(2.5),size<_(2.5)μm)模拟颗粒,其经雾化小鼠吸入体内后,通过正电子断层扫描(positron emission tomography,PET)成像对小鼠进行全身显影,结果可见雾化的^(68)Ga-PEG-MNP PM_(2.5)模拟颗粒可由气管向肺部双叶区域扩散,并滞留于肺。体内的PET成像结果与离体放射自显影结果高度一致。

关键词：正电子断层扫描成像 ^(68)Ga 黑色素纳米颗粒细颗粒物

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

Preparation of Controllable Cross-Linking Polyethylene Foaming Materials and Their Properties

引用

Journal of Wuhan University of Technology(Materials Science) 2022年第5期37卷 1014-1019页

作者：夏碧华东为富 ZHANG Xuhui WANG Yang JIANG Jie LI Ting MA Piming chen mingqing The Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Materials EngineeringJiangnan UniversityWuxi214122China

In order to prepare the polyethylene materials with controlling properties,we developed two kinds of controllable cross-linking polyethylene foaming system.2,5-dimethyl-2,5-bis (tert-butyl peroxy) hexane was used as cross-linking agent and TEMPO as cross-linking inhibitor,azodicarbonamide (AC) was used as foaming agent and citric acid as foaming *** density,expansion ratio,cellular structure and mechanical property of these two kinds of controllable materials were *** results show that,properties of these two kinds of materials appear similar trend:cellular size and expansion ratio are enlarged with the amount of cross-linking inhibitor or foaming promoter increasing,while density and mechanical strength appear decreasing *** comparing those two material systems’ properties,cross-linking polyethelene foaming system with citric acid as foaming promoter has better properties.

关键词： polyethylene cross-linking inhibitor foaming agent additives cellular structure mechanical property

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

Synthesis of Visible-Light-Driven g-C3N4/PPy/Ag Ternary Photocatalyst with Improved Photocatalytic Performance

引用

Chinese Journal of Chemistry 2017年第2期35卷 226-236页

作者： Fengli Zhang Fang Duan Zhigang Ding mingqing chen School of Chemical and Material Engineering Jiangnan University Wuxi Jiangsu 214122 China The Key Laboratory of Food Colloids and Biotechnology Ministry of Education Jiangnan University Wuxi Jiangsu 214122 China

g-C3N4/PPy/Ag ternary photocatalyst was synthesized by a three-step method. Firstly, graphitic carbon nitride （g-C3N4） photocatalyst was obtained by sintering melamine at high temperature, then a series ofg-C3N4/PPy com- posite photocatalysts were prepared by in-situ polymerization of pyrrole, and finally the g-C3N4/PPy/Ag ternary composite photocatalyst was obtained by depositing Ag on the surface of g-C3N4/PPy. The photocatalytic activities of as-prepared samples were evaluated by degradation of antibiotic tetracycline （TC） under visible light. The influ- ence of the amounts of polypyrrole （PPy） and Ag on the photocatalytic activity of g-C3N4/PPy/Ag ternary photo- catalyst was investigated. Both PPy and Ag played critical roles for the enhanced photocatalytic activity of g-C3N4/PPy/Ag. The g-C3N4/PPy/Ag composites exhibited remarkably improved photocatalytic activities for de- grading TC compared with g-C3N4, g-C3N4/PPy and g-C3N4/Ag. Besides, the photocatalytic mechanism was also analyzed. The band match of PPy with g-C3N4 benefited the separation of photo-generated carriers in g-C3N4, and the deposited Ag nanoparticles played important roles as an electron mediator due to the surface plasmon resonance （SPR） effects. The present study offered new insight into the design of the economical and gently environ- ment-friendly synthesis of highly efficient photocatalysts.

关键词： g-C3N4 polypyrrole Ag visible light photocatalyst

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

Synthesis of submicron-sized composite particles with unique morphology by emulsifier-free seeded emulsion copolymerization

引用

Particuology 2008年第5期6卷 369-375页

作者： Hong Chu Hongyan Wang Zhongbin Ni Xiaoya Liu mingqing chen School of Chemical and Material Engineering Jiangnan University Wuxi 214122 China

Polystyrene （PSt） microspheres with diameter of 375 nm to be used as the seeds for seeded emulsion polymerization were prepared via emulsion polymerization using potassium persulfate （KPS） as initiator in ethanol-water mixed solvents. Emulsifier-free seeded emulsion copolymerization of styrene （St） with acrylonitrile （AN） was carried out in the presence of poly（ethylene glycol） monomethoxymonomethacrylate （PEGm） macromonomer as reactive stabilizer and 2,2＇-azobisisobutyronitrile （AIBN） as initiator to obtain submicron-sized PEGm graft poly（styrene-coacrylonitrile）（PEGm-g-PSAN） composite particles with unique morphology. Scanning electron microscopy （SEM） indicated that St and AN together contributed to forming the unusual morphology. The concentration of St and AN, total monomer concentration, initiator type and the monomer adding method remarkably affected the morphology of the composite polymer particles.

关键词： Seed Composite particle Emulsifier-free emulsion copolymerization Morphology

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：