检索结果-南通市图书馆

Nuclear Science and Techniques 2024年第9期35卷 103-114页

作者： Ying Sun Wen-Rui Wang Dan-Yi li Si-Yi Xu lin lin Man-li Lu Kai Fan Chen-Yang Xing lin-Fan li ji-hao li Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100049China School of Architecture and Materials Chongqing College of Electronic EngineeringChongqing 401331China Center for Stretchable Electronics and NanoSensors Key Laboratory of Optoelectronic Devices and Systems of Ministry of EducationCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China

This paper presents a superhydrophobic melamine(ME)sponge(ME-g-PLMA)prepared via high-energy radiation-induced in situ covalent grafting of long-alkyl-chain dodecyl methacrylate(LMA)onto an ME sponge for efficient oil–water *** obtained ME-g-PLMA sponge had an excellent pore structure with superhydrophobic(water contact angle of 154°)and superoleophilic *** can absorb various types of oils up to 66–168 times its *** ME-g-PLMA sponge can continuously separate oil slicks in water by connecting a pump or separating oil underwater with a gravity-driven *** addition,it maintained its highly hydrophobic properties even after long-term immersion in different corrosive solutions and repeated oil *** modified ME-g-PLMA sponge exhibited excellent separation properties and potential for oil spill cleanup.

关键词： Radiation-induced graft polymerization Oil–water separation Sponge Superhydrophobic

Superhydrophobic melamine sponge prepared by radiation-induced grafting technology for efficient oil–water separation

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

Nuclear Science and Techniques 2024年第09期 18-29页

作者： Ying Sun Wen-Rui Wang Dan-Yi li Si-Yi Xu lin lin Man-li Lu Kai Fan Chen-Yang Xing lin-Fan li ji-hao li Shanghai Institute of Applied Physics Chinese Academy of Sciences University of Chinese Academy of Sciences School of Architecture and Materials Chongqing College of Electronic Engineering Center for Stretchable Electronics and NanoSensors Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education College of Physics and Optoelectronic Engineering Shenzhen University

This paper presents a superhydrophobic melamine(ME) sponge(ME-g-PLMA) prepared via high-energy radiation-induced in situ covalent grafting of long-alkyl-chain dodecyl methacrylate(LMA) onto an ME sponge for efficient oil–water separation. The obtained ME-g-PLMA sponge had an excellent pore structure with superhydrophobic(water contact angle of 154?)and superoleophilic properties. It can absorb various types of oils up to 66–168 times its mass. The ME-g-PLMA sponge can continuously separate oil slicks in water by connecting a pump or separating oil underwater with a gravity-driven *** addition, it maintained its highly hydrophobic properties even after long-term immersion in different corrosive solutions and repeated oil adsorption. The modified ME-g-PLMA sponge exhibited excellent separation properties and potential for oil spill cleanup.

关键词：

The synergy reduction and self-assembly of graphene oxide via gamma-ray irradiation in an ethanediamine aqueous solution

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2016年第3期27卷 80-87页

作者： Ya-Lei He ji-hao li lin-Fan li jing-Bo Chen jing-Ye li School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450002China CAS Center for Excellence on TMSR Energy System Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201800China

Gamma-ray irradiation technique is an effective method for preparing graphene aerogel(GA).The effective reduction and self-assembly of graphene oxide(GO) sheets into 3D porous GA in ethylenediamine(EDA) aqueous solution under the protection of nitrogen have been achieved via γ-ray *** reduction degree and self-assembly process,which can be controlled by varying EDA dose and irradiation dose,are investigated by X-ray photoelectron spectroscopy,Fourier transform infrared spectroscopy,X-ray diffractometer,and thermogravimetric analysis.A reduction mechanism is proposed for interactions among EDA molecules,active radicals from the radiolysis of water,and oxygen-containing groups on GO sheets.

关键词： γ射线照射氧化石墨乙二胺自组装协同还原溶液傅里叶变换红外光谱 X射线光电子能谱

Simple synthesis of silver nanocluster composites AgNCs@PE-g-PAA by irradiation method and fluorescence detection of Cr^(3+)

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2023年第5期34卷 101-111页

作者： Fei Han Wen-Rui Wang Dan-Yi li Mou-Hua Wang ji-hao li lin-Fan li Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100049China Wuwei Institute of New Energy Wuwei 733000China

Silver nanoclusters(AgNCs)are a new type of nanomaterials with similar properties to molecules and unique *** applications of AgNCs can be significantly expanded by combining them with different matrix materials to obtain AgNC *** irradiation techniques,we developed a simple two-step method for preparing silver nanocluster ***,polyacrylic acid(PAA)chains were grafted onto the surface of a PE film as templates(PE-g-PAA).Subsequently,silver ions were reduced in situ on the surface of the template material to obtain the AgNC composites(AgNCs@PE-g-PAA).The degree of AgNC loading on the composite film was easily controlled by adjusting the reaction *** loaded AgNCs were anchored to the carboxyl groups of the PAA and wrapped in the graft *** particle size of the AgNCs was only 4.38±0.85 nm,with a very uniform particle size *** AgNCs@PE-g-PAA exhibited fluorescence characteristics derived from the *** fluorescence of the AgNCs@PE-g-PAA was easily quenched by Cr^(3+)*** composite can be used as a fluorescence test paper to realize visual detection of Cr^(3+).

关键词： Silver nanoclusters Irradiation grafting Irradiation reduction In situ preparation Fluorescence detection

Radiation graft of acrylamide onto polyethylene separators for lithium-ion batteries

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2017年第6期28卷 108-114页

作者： Xiao-li Miao ji-hao li Qun Xiang jia-Qiang Xu lin-Fan li jing-Ye li Shanghai Institute of Applied Physics Chinese Academy of Science Department of Chemistry College of ScienceShanghai University

To improve the affinity between separators and electrolyte in lithium-ion battery,microporous polyethylene(PE) separator was grafted of polyacrylamide(PAAm) by *** structure of the PAAmgrafted PE separators(denoted as PE-g-PAAm) was characterized by Fourier transform infrared spectroscopy and X-ray photoelectron *** of the pristine PE and PE-g-PAAm were tested by scanning electron microscope,liquid electrolyte uptake and lithium-ion *** performances of the grafted PE separators(up to 0.76 × 10^(-3) S/cm of ionic conductivity at room temperature) were much better than pristine PE,and performance of the battery with the grafted separator behaved better than with the virgin PE separator,under the same condition(assembled in Ar-filled glove box).

关键词： lithium-ion battery Polyethylene Acrylamide Irradiation graft Separator

Radiation-induced cross-linking:a novel avenue to permanent 3D modification of polymeric membranes

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2021年第7期32卷 31-45页

作者： Yu Gu Bo-Wu Zhang Zhen Guo ji-hao li Ming Yu lin-Fan li jing-Ye li Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China MOE Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials ScienceShanghai Normal UniversityShanghai 200234China University of Chinese Academy of Sciences Beijing 100049China

Membrane fouling is always the biggest problem in the practice of membrane separation technologies,which strongly impacts their applicability,separation efficiency,cost effectiveness,and service ***,a simple but effective 3D modification approach was designed for permanently functionalizing polymeric membranes by directly cross-linking polyvinyl alcohol(PVA)under gamma-ray irradiation at room temperature without any *** the modification,a PVA layer was constructed on the membrane surface and the pore inner surface of polyvinylidene fluoride(PVDF)*** endowed them with good hydrophilicity,low adsorption of protein model foulants,and easy recoverability *** addition,the pore size and distribution were customized by controlling the PVA concentration,which enhanced the rejection ability of the resultant membranes and converted them from microfiltration to *** crosslinked PVA layer was equipped with the resultant membranes with good resistance to chemical cleaning by acidic,alkaline,and oxidative reagents,which could greatly prolong the membrane service ***,this approach was demonstrated as a universal method to modify PVDF membranes with other hydrophilic macromolecular modifiers,including polyethylene glycol,sodium alginate,and polyvinyl *** modification of the membranes effectively endowed them with good hydrophilicity and antifouling properties,as expected.

关键词： Ultrafiltration membrane Antifouling 3D modification Gamma-ray Cross-linking

Enhancement of Activity of SnO_(2)-doped In_(2)O_(3)/Al_(2)O_(3) Catalyst for NO Reduction with Propene in the Presence of H_(2)O and SO_(2)

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2005年第11期16卷 1535-1538页

作者： Xiang Yu CUI Jun Hua li ji Ming hao li Xin FU Department of Environmental Science and Engineering Tsinghua University Beijing 100084

The novel bimetallic Sn-Im/Al2O3 catalysts prepared by three methods for NO reduction by propene were investigated. The results showed that the catalytic activity was enhanced significantly in the presence of H2O on sol-gel catalyst, and the maximum NO conversion increased from 46% to 92%, even in the presence of 100 ppm SO2, NO conversion was still 80%.

关键词： Selective catalytic reduction De-NOx lean burn In2O3/Al2O3 Sn-Ir/A12O3.

Estimating health damage cost from secondary sulfate particles—a case study of Hunan Province,China

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

Journal of Environmental Sciences 2003年第5期15卷 611-617页

作者： hao ji ming, li ji, YE Xue mei, ZHU Tian le (Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China. ) Department of Environmental Science and Engineering Tsinghua University Beijing 100084 China

China's coal dominated energy pattern has resulted in large amount of SO 2 emissions. Estimate of the sulfur related health damage cost is necessary to help perform systematic cost benefit analysis and set national energy and emissions control priorities. Current researches were confined to gaseous SO 2 in urban areas; however, secondary sulfate (SO 2- 4) particles can exert serious impact in a wider region. Based on the concept of “intake fraction', CALPUFF long range dispersion model and 180 sample emission sources, multiple regression equation was obtained with good correlation( r =0 85), which illustrates that populations were key parameters to determine intake fraction but source characteristics were insignificant. Based on the formula and the population distribution data, county level intake fractions were mapped for Hunan Province(range: 1 1×10 -6 -3 2×10 -6 ) of China. A combination of county level SO 2 emissions with the intake fractions yields a total 1 98 tons of sulfate(SO 2- 4) inhalation, and resulting total health damage cost to be 0 76(willingness to pay approach, WTP) or 0 16(human capital approach, HC) billion USD in 1997, about 2.1% or 0 45% of GDP in Hunan in 1997. Average health damage cost per ton of SO 2 emission is 930(WTP) or 200 USD(HC). The results demonstrated that more stringent regulation should be forced.

关键词： intake fraction health impact Hunan Province sulfate regression analysis

Preparation of antibacterial non-woven AgNCs@PP-g-PAA via radiation method

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2023年第9期34卷 21-31页

作者： Fei Han Wen-Rui Wang Dan-Yi li Si-Yi Xu Ying Su lin lin Man-li Lu ji-hao li lin-Fan li Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100049China Wuwei Institute of New Energy Wuwei 733000China

With the growing threat of airborne epidemics,there has been an increasing emphasis on personal *** serve as our primary external defense against bacteria and viruses that might enter the respiratory ***,it’s crucial to develop a polypropylene(PP)nonwoven fabric with quick antibacterial capabilities as a key component for *** study introduces silver nanoclusters(AgNCs)into non-woven PP using radiation technology to infuse antibacterial ***,a solid ligand(PP-g-PAA)was procured via radiation grafting of the ligand polyacrylic acid(PAA),which was incorporated into the nonwoven PP with the aid of a crosslinking agent at a lower absorbed ***,AgNCs were synthesized in situ on PP-g-PAA via an interaction between PAA and AgNCs,leading directly to the formation of AgNCs@PP-g-PAA *** to the hydrophilicity of PAA,AgNCs@PP-g-PAA maintains good moisture permeability even when the voids are heavily saturated with PAA gel,preventing droplet aggregation by diffusing droplets on the surface of the *** feature enhances the comfort of the *** importantly,due to the incorporation of AgNCs,AgNCs@PP-g-PAA demonstrates outstanding antibacterial effects against Escherichia coli and Staphylococcus aureus,nearly achieving an instant“touch and kill”*** conclusion,we synthesized a modified nonwoven fabric with significant antibacterial activity using a simple synthetic route,offering a promising material that provides improved personal protection.

关键词： Silver nanoclusters Radiation technology Antibacterial

Uncertainty and sensitivity analysis of in-vessel phenomena under severe accident mitigation strategy based on ISAA-SAUP program

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2024年第1期35卷 108-123页

作者： hao Yang ji-Shen li Zhi-Ran Zhang Bin Zhang jian-Qiang Shan School of Nuclear Science and Technology Xi’an Jiaotong UniversityXi’an 710049China State Key Laboratory of Multiphase Flow in Power Engineering Xi’an Jiaotong UniversityXi’an 710049China

The phenomenology involved in severe accidents in nuclear reactors is highly ***,integrated analysis programs used for severe accident analysis heavily rely on custom empirical parameters,which introduce considerable ***,in recent years,the field of severe accidents has shifted its focus toward applying uncertainty analysis methods to quantify uncertainty in safety assessment programs,known as“best estimate plus uncertainty(BEPU).”This approach aids in enhancing our comprehension of these programs and their further development and *** study concentrates on a third-generation pressurized water reactor equipped with advanced active and passive mitigation *** an Integrated Severe Accident Analysis Program(ISAA),numerical modeling and uncertainty analysis were conducted on severe accidents resulting from large break loss of coolant *** uncertainty parameters of the ISAA program were meticulously *** Wilks'formula,the developed uncertainty program code,SAUP,was employed to carry out Latin hypercube sampling,while ISAA was employed to execute batch *** analysis was then conducted on two figures of merit,namely hydrogen generation and the release of fission products within the pressure *** calculations revealed that hydrogen production and the fraction of fission product released exhibited a normal distribution,ranging from 182.784 to 330.664 kg and from 15.6 to 84.3%,*** ratio of hydrogen production to reactor thermal power fell within the range of 0.0578–0.105.A sensitivity analysis was performed for uncertain input parameters,revealing significant correlations between the failure temperature of the cladding oxide layer,maximum melt flow rate,size of the particulate debris,and porosity of the debris with both hydrogen generation and the release of fission products.

关键词： Gen-III PWR Severe accident mitigation Wilks’formula Hydrogen Fission products Uncertainty and sensitivity analysis