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孔板水力空化器对水中大肠杆菌的去除效果

应用化工 2018年第5期47卷 920-923,927页

作者：时小芳朱孟府邓橙郝丽梅张锐赵斌马军刘红斌天津工业大学环境与化学工程学院天津300387 军事医学科学院卫生装备研究所天津300161

以多孔板为水力空化发生器,研究对水中大肠杆菌的去除效果。结果表明,水力空化的发生器结构和操作条件会对大肠杆菌的去除效果产生影响。采用交叉分布的孔板、增加孔数和减少孔径、增加入口压力及空化时间,可有效提高孔板反应器对大肠... 详细信息

以多孔板为水力空化发生器,研究对水中大肠杆菌的去除效果。结果表明,水力空化的发生器结构和操作条件会对大肠杆菌的去除效果产生影响。采用交叉分布的孔板、增加孔数和减少孔径、增加入口压力及空化时间,可有效提高孔板反应器对大肠杆菌的去除率;菌落初始浓度大于10~3CFU/m L时,增加初始浓度也可提高去除率。

关键词：水力空化微生物大肠杆菌水处理消毒

盐胁迫对离体百合不定芽诱导及生理活性的影响

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草原与草坪 2011年第3期31卷 40-44页

作者：刘卫卫王彬忠郝丽玫黄惠英甘肃农业大学生命科学技术学院甘肃兰州730070 甘肃农业大学农学院甘肃兰州730070

采用组织培养法研究了5种NaCl浓度0%,0.3%,0.5%,0.8%,1.2%对百合不定芽诱导、生长及丙二醛(MDA)、脯氨酸、蛋白质含量和过氧化物酶活性的影响。结果表明:百合对盐胁迫极为敏感,随NaCl浓度的增加,百合不定芽形成频率逐渐降低,不定芽及不... 详细信息

采用组织培养法研究了5种NaCl浓度0%,0.3%,0.5%,0.8%,1.2%对百合不定芽诱导、生长及丙二醛(MDA)、脯氨酸、蛋白质含量和过氧化物酶活性的影响。结果表明:百合对盐胁迫极为敏感,随NaCl浓度的增加,百合不定芽形成频率逐渐降低,不定芽及不定根生长缓慢,且在1.2%NaCl浓度下,无不定芽及根的形成。进一步的生理活性检测结果表明,百合不定芽的丙二醛、脯氨酸含量均随NaCl浓度的升高而增加,并在0.8%NaCl浓度下达到最高,分别为201.23μmol/g和225.7μg/g;蛋白质含量呈先降后增的趋势,在0.3%NaCl浓度下最低为0.96 mg/g;POD活性也随NaCl浓度的升高而增加,于0.8%浓度下达到最高,为181.60 U/(min.g)。综合盐胁迫对百合不定芽生长及生理活性的影响,0.8%NaCl浓度为百合外植体、不定芽忍耐盐胁迫的阈值。

关键词：百合盐胁迫不定芽生理活性

Growth,Cadmium and Zinc Accumulation of Ornamental Sunflower (Helianthus annuus L.) in Contaminated Soil with Different Amendments

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Pedosphere 2012年第5期22卷 631-639页

作者： hao Xiu-Zhen ZHOU Dong-mei li Dan-Dan JIANG Ping Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil ScienceChinese Academy of SciencesNanjing 210008(China)

Use of ornamental plants for phytoremediation of metal-contaminated soil is a new option. A pot experiment was carried out to assess the effect of application of amendments, i.e., swine manure, salicylic acid （SA） and potassium chloride （KC1）, on the growth, uptake and translocation of cadmium （Cd） and zinc （Zn） of ornamental sunflower （Helianthus annuus L.） grown on a contaminated soil. The three amendments increased sunflower height, flower diameter, and biomass. Manure significantly decreased Cd and Zn concentrations in sunflower, and thus decreased the bioaccumulation coefficient （BCF） of Cd and Zn. However, using of KC1 markedly increased Cd concentrations in sunflower and the BCF of Cd. Additionally, both swine manure and KC1 application increased Cd and Zn translocation from root to aboveground part. Swine manure and salicylic acid reduced the Cd/Zn ratios in flower of sunflower, while KC1 significantly increased the Cd/Zn ratios. Correlation analysis demonstrated that the Cd/Zn ratio in the root of sunflower was affected by K/Na ratio in root and soil available potassium （K） concentration. Ornamental sunflower could be grown as an alternative plant in the Cd- and Zn-contaminated soil with KC1 application to get the balance between environmental and economic interests.

关键词： Cd/Zn ratio fertilizer heavy metals manure remediation

A cellulose-based lithium-ion battery separator with regulated ionic transport and high thermal stability for extreme environments

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Nano Research 2025年第1期18卷 315-322页

作者： Kun-Peng Yang Song Xie Zi-Meng Han hao-Cheng liu Chong-Han Yin Wen-Bin Sun Zhang-Chi ling Huai-Bin Yang De-Han li Qing-Fang Guan Shu-Hong Yu Department of Chemistry New Cornerstone Science LaboratoryInstitute of Biomimetic Materials&ChemistryAnhui Engineering Laboratory of Biomimetic MaterialsDivision of Nanomaterials&ChemistryHefei National Research Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaHefei 230026China Institute of Innovative Materials Department of Materials Science and EngineeringDepartment of ChemistrySouthern University of Science and TechnologyShenzhen 518055China

Separators play a critical role in lithium-ion ***,the restrictions of thermal stability and inferior electrical performance in commercial polyolefin separators significantly limit their applications under harsh ***,we report a cellulose-assisted self-assembly strategy to construct a cellulose-based separator massively and *** an ultrahigh ionic conductivity in electrolytes of 3.7 mS·cm^(-1) and the ability to regulate ion transport,the obtained separator is a promising alternative for high-performance lithium-ion *** addition,integrated with high thermal stability,the cellulose-based separator endows batteries with high safety at high temperatures,greatly expanding the application scenarios of energy storage devices in extreme environments.

关键词： lithium-ion batteries bio-inspired materials battery separators cellulose nanofiber ultrahigh ionic conductivity high safety

MoS_(2)Lubricate‑Toughened MXene/ANF Composites for Multifunctional Electromagnetic Interference Shielding

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Nano-Micro Letters 2025年第2期17卷 358-371页

作者： Jiaen Wang Wei Ming Longfu Chen Tianliang Song Moxi Yele hao Zhang Long Yang Gegen Sarula Benliang liang Luting Yan Guangsheng Wang School of Physical Science and Engineering Beijing Jiaotong UniversityBeijing 100044People’s Republic of China Key Laboratory of Bio‑Inspired Smart Interfacial Science and Technology of Ministry of Education School of ChemistryBeihang UniversityBeijing 100191People’s Republic of China

The design and fabrication of high toughness electromagnetic interference(EMI)shielding composite films with diminished reflection are an imperative task to solve electromagnetic pollution *** MXene/ANF(aramid nanofibers)–MoS_(2)composite films with nacre-like layered structure here are fabricated after the introduction of MoS_(2)into binary MXene/ANF composite *** introduction of MoS_(2)fulfills an impressive“kill three birds with one stone”improvement effect:lubrication toughening mechanical performance,reduction in secondary reflection pollution of electromagnetic wave,and improvement in the performance of photothermal *** the introduction of MoS_(2)into binary MXene/ANF(mass ratio of 50:50),the strain to failure and tensile strength increase from 22.1±1.7%and 105.7±6.4 MPa and to 25.8±0.7%and 167.3±9.1 MPa,*** toughness elevates from 13.0±4.1 to 26.3±0.8 MJ m^(−3)(~102.3%)*** the reflection shielding effectiveness(SE_(R))of MXene/ANF(mass ratio of 50:50)decreases~10.8%.EMI shielding effectiveness(EMI SE)elevates to 41.0 dB(8.2–12.4 GHz);After the introduction of MoS_(2)into binary MXene/ANF(mass ratio of 60:40),the strain to failure increases from 18.3±1.9%to 28.1±0.7%(~53.5%),the SE_(R)decreases~22.2%,and the corresponding EMI SE is 43.9 *** MoS_(2)also leads to a more efficient photothermal conversion performance(~45 to~55℃).Additionally,MXene/ANF–MoS_(2)composite films exhibit excellent electric heating performance,quick temperature elevation(15 s),excellent cycle stability(2,2.5,and 3 V),and long-term stability(2520 s).Combining with excellent mechanical performance with high MXene content,electric heating performance,and photothermal conversion performance,EMI shielding ternary MXene/ANF–MoS_(2)composite films could be applied in many industrial *** work broadens how to achieve a balance between mechanical properties and versatility of composites in the case of high-function fillers.

关键词： MXene-MoS_(2) Lubrication toughening EMI shielding Photothermal conversion Electric heating performance

The influence of the stray-light component in determining coronal temperature structures

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Science China(Physics,Mechanics & Astronomy) 2009年第11期52卷 1728-1736页

作者： hao Juan ZHANG mei Key Laboratory of Solar Activity National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100012China

We use a few solar partial eclipse observations made by XRT/Hinode to estimate the influence of stray-light component in determining coronal temperature structures. Our analysis shows that the stray light will largely affect the estimation of coronal temperature and change the estimated temperature structure in one coronal hole region. The stray lights mildly influence the estimated temperatures in one quiet Sun region and do not change the estimated temperature structure. This implies that the influence of stray lights differs from one region to another, and definitely needs to be considered in some regions. Whereas a carefully estimated point-spread-function is needed to remove the stray light component, our study shows that by a simple approach such as subtracting the average intensity of distant (e.g. >1.4 solar radius) points from the data values, the influence of stray light can be largely removed, at least for the two regions we study here.

关键词： Sun: Corona Sun: X-rays

Gallic Acid/2-Hydroxypropyl-β-cyclodextrin Inclusion Complexes Electrospun Nanofibrous Webs:Fast Dissolution,Improved Aqueous Solubility and Antioxidant Property of Gallic Acid

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Chemical Research in Chinese Universities 2021年第3期37卷 450-455页

作者： SONG Yudong HUANG Hui HE Dayong YANG mei WANG hao ZHANG hao li Jiali li Yongxin WANG Ce College of Food Science and Engineering Jilin UniversityChangchun130025P.R.China Key Lab of Groundwater Resources and Environment of Ministry of Education College of New Energy and EnvironmentJilin UniversityChangchun130021P.R.China Alan G.MacDiarmid Institute College of ChemistryJilin UniversityChangchun130012P.R.China

Gallic acid(GA)is a kind of natural polyphenolic compound,but its low aqueous solubility restricts its application in the fields of food and *** can form inclusion complexes with guest molecules(e.g.,essential oils,food supplements)through cavities with special properties to improve aqueous solubility,thermal stability,and bioavailability of guest *** this research,gallic acid/2-hydroxypropyl-β-cyclodextrin inclusion complexes(GA/2-HP-β-CD/ICs)were formed in a highly concentrated solution of 2-HP-β-***-free and uniform nanofibrous webs(GA/2-HP-β-CD/IC-NWs)were produced successfully by electrospun GA/HP-β-CD/IC aqueous *** initial molar ratio(GA:2-HP-β-CD=1:1)of GA/2-HP-β-CD/IC in the solutions was largely maintained in GA/2-HP-β-CD/*** aqueous solubility of GA was enhanced and GA/2-HP-β-CD/IC-NW has displayed fast dissolution ***,in comparison with GA powder,GA/2-HP-β-CD/IC-NW demonstrated improved antioxidant *** results suggested that GA/2-HP-β-CD/IC-NW have broad application prospects as orally fast dissolution systems for food supplements.

关键词： Gallic acid 2-Hydroxypropyl-β-cyclodextrin Inclusion complex Electrospun Fast dissolution

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酸性氧化电位水杀菌效果评价

中国消毒学杂志 2012年第2期29卷 93-95,I0001,I0002页

作者：张学辉马军邓桦刘红斌王济虎郝丽梅张西正军事医学科学院卫生装备研究所天津300161 天津工业大学纺织学院

目的研究酸性氧化电位水的杀菌效果。方法采用悬液定量杀菌试验方法和激光共聚焦显微镜直接观察方法,对新生产的酸性氧化电位水杀菌效果进行了实验室观察。结果用新生产的酸性氧化电位水原液对清洁条件下悬液内枯草杆菌黑色变种芽孢作用... 详细信息

目的研究酸性氧化电位水的杀菌效果。方法采用悬液定量杀菌试验方法和激光共聚焦显微镜直接观察方法,对新生产的酸性氧化电位水杀菌效果进行了实验室观察。结果用新生产的酸性氧化电位水原液对清洁条件下悬液内枯草杆菌黑色变种芽孢作用15 min,杀灭率为100%;在有机干扰物存在的条件下作用60 min,平均杀灭率仅为99.65%。在清洁条件下,对悬液内金黄色葡萄球菌和大肠杆菌作用30 s,杀灭率均达到100%;在菌悬液内加入30 g/L小牛血清白蛋白作用12 min,平均杀灭率分别为95.06%和99.90%。采用激光聚焦显微镜观察的酸性氧化电位水杀菌效果与悬液定量法完全一致。结论酸性氧化电位水在清洁条件下具有良好的杀菌效果,其杀菌效果明显受有机物影响,激光聚焦显微镜观察结果与悬液定量法一致。

关键词：酸性氧化电位水有效氯杀菌效果激光聚焦显微镜

Construction of multifunctional lanthanum manganese mixed nanoparticles mediated by ionic liquids for selective aerobic oxidation of cyclohexane

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Rare Metals 2024年第5期43卷 2205-2221页

作者： hao li Rui-Rui Zhang Ke-Xin li Shuang Wei Yu-mei liu Rui-Xia liu Beijing Key Laboratory of Ionic liquids Clean Process CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Selective oxidation of alkanes to produce highvalue chemicals is an essential strategy and means to realize efficient utilization of *** this work,a strategy of lanthanum manganese mixed metal oxides(LMMO)regulated via a facile ionic liquid(IL)-assisted hydrothermal method was proposed to construct the multifunctional catalysts,which exhibited excellent catalytic performance in the selective aerobic oxidation of *** 8.9%cyclohexane conversion with 90%KA oi(cyclohexanol and cyclohexanone)selectivity was achieved over the optimal LMMO catalyst under mild *** effects of anion type,carbon chain length and concentration of ILs on the structure and properties of catalysts were investigated through various characterizations,indicating the structure-directing and template effect of ILs on the multifunctional *** formation of self-assembled spherical nanoparticles followed the"dissolution-nucleation-proliferation"mechanism with the introduction of 1-butyl-3-methylimidazolium hydrogen sulfate,ascribing the synergistic effect between the microenvironment of ILs and the hydrothermal ***,the high reactive oxygen concentration redox capacity,and suitable basic sites of LMMO catalysts mediated by ILs enhance the activation of C-H bonds and molecular oxygen,simultaneously influencing the adsorption and desorption of the substrate.A comprehensive understanding of the high KA oil selectivity and radical reaction mechanism was elucidated based on in situ diffuse reflectance infrared Fourier transform spectroscopy(DRIFTS)and radical trapping *** recycling and regeneration experiments further illuminated that the removal of adsorbed cyclohexanone acting on the LMMO catalyst was the key to achieve high KA oil selectivity.

关键词： Ionic liquids Nanoparticle Multifunctional catalyst Cyclohexane oxidation