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期刊论文 16

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2023 1

2022 2

2020 1

2018 2

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2015 2

2014 3

2009 3

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表面活性剂 3

农药加工 1

准备工序 1

制浆 1

提高石油采收率 1

机理 1

染色 1

氟化石墨 1

溶剂介质 1

环境保护 1

皮革 1

石墨;石墨深加工;石墨精矿;石墨烯;氟化石墨 1

碳封存 1

第一性原理 1

纳米粒子 1

绿色表面活性剂 1

造纸 1

锂/钠可充电电池 1

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Efficient promotion of methane hydrate formation and elimination of foam generation using fluorinatedsurfactants

Quan CAO, Dongyan XU, Huanfei XU, Shengjun LUO, Rongbo GUO

《能源前沿(英文)》 2020年 第14卷 第3期   页码 443-451 doi: 10.1007/s11708-020-0683-2

摘要: Methane hydrate preparation is an effective method to store and transport methane. In promoters to facilitate methane hydrate formation, homogeneous surfactant solutions, sodium dodecyl sulfate (SDS) in particular, are more favorable than heterogeneous particles, thanks to their faster reaction rate, more storage capacity, and higher stability. Foaming, however, could not be avoided during hydrate dissociation with the presence of SDS. This paper investigated the ability of five fluorinated surfactants: potassium perfluorobutane sulfonate (PBS), potassium perfluorohexyl sulfonate (PHS), potassium perfluorooctane sulfonate (POS), ammonium perfluorooctane sulfonate (AOS), and tetraethylammonium perfluorooctyl sulfonate (TOS) to promote methane hydrate formation. It was found that both PBS and PHS achieve a storage capacity of 150 ( , the volume of methane that can be stored by one volume of water) within 30 min, more than that of SDS. Cationic ions and the carbon chain length were then discussed on their effects during the formation. It was concluded that PBS, PHS, and POS produced no foam during hydrate dissociation, making them promising promoters in large-scale application.

关键词: methane hydrate     fluorinated surfactants     homogeneous promoter     foam elimination     stability    

Controlling microbiological interfacial behaviors of hydrophobic organic compounds by surfactants in

ZHANG Dong,ZHU Lizhong

《环境科学与工程前沿(英文)》 2014年 第8卷 第3期   页码 305-315 doi: 10.1007/s11783-014-0647-z

摘要: Bioremediation of hydrophobic organic compounds (HOCs) contaminated soils involves several physicochemical and microbiological interfacial processes among the soil-water-microorganism interfaces. The participation of surfactants facilitates the mass transport of HOCs in both the physicochemical and microbiological interfaces by reducing the interfacial tension. The effects and underlying mechanisms of surfactants on the physicochemical desorption of soil-sorbed HOCs have been widely studied. This paper reviewed the progress made in understanding the effects of surfactant on microbiological interfacial transport of HOCs and the underlying mechanisms, which is vital for a better understanding and control of the mass transfer of HOCs in the biodegradation process. In summary, surfactants affect the microbiological interfacial behaviors of HOCs during three consecutive processes: the soil solution-microorganism sorption, the transmembrane process, and the intracellular metabolism. Surfactant could promote cell sorption of HOCs depending on the compatibility of surfactant hydrophile hydrophilic balance (HLB) with cell surface properties; while the dose ratio between surfactant and biologic mass (membrane lipids) determined the transmembrane processes. Although surfactants cannot easily directly affect the intracellular enzymatic metabolism of HOCs due to the steric hindrace, the presence of surfactants can indirectly enhanced the metabolism by increasing the substrate concentrations.

关键词: biodegradation     sorption     transmembrane transport     microbiological interfaces     surfactants    

New insights into different surfactants’ impacts on sludge fermentation: Focusing on the particular metabolic

《环境科学与工程前沿(英文)》 2022年 第16卷 第8期 doi: 10.1007/s11783-022-1527-6

摘要:

• The promoting effects for VFA generation follow the order of APG>SDBS>HTAB.

关键词: Waste activated sludge (WAS)     Volatile fatty acids (VFA)     Surfactant types     Functional microorganisms     Metabolic activity upregulation    

Influences of spinel type and polymeric surfactants on the size evolution of colloidal magnetic nanocrystals

Tahereh R. BASTAMI,Mohammad H. ENTEZARI,Chiwai KWONG,Shizhang QIAO

《化学科学与工程前沿(英文)》 2014年 第8卷 第3期   页码 378-385 doi: 10.1007/s11705-014-1441-y

摘要: Two types of polymeric surfactants, PEG and PVP , were used for the preparation of magnetic ferrite MFe O (M= Mn, Fe) colloidal nanocrystals using a solvothermal reaction method. The effect of spinel type effect on the size evolution of various nanoparticles was investigated. It was found that Fe O nanoparticles exhibited higher crystalinity and size evolution than MnFe O nanoparticles with use of the two surfactants. It is proposed that this observation is due to fewer tendencies of surfactants on the surface of Fe O building blocks nanoparticles than MnFe O . Less amounts of surfactant or capping agent on the surface of nanoparticles lead to the higher crystalibity and larger size. It is also suggested that the type of spinel (normal or inverted spinel) plays a key role on the affinity of the polymeric surfactant on the surface of building blocks.

关键词: spinel type     polymeric surfactant     size evolution     mangnetic ferrite nanoparticle    

Synthesis of nanoiron by microemulsion with Span/Tween as mixed surfactants for reduction of nitrate

ZHANG Yunxia, LI Tielong, JIN Zhaohui, WANG Wei, WANG Shuaima

《环境科学与工程前沿(英文)》 2007年 第1卷 第4期   页码 466-470 doi: 10.1007/s11783-007-0074-5

摘要: Denitrification of nitrate in groundwater using iron nanoparticles has received increasing interest in recent years. In order to fabricate iron nanoparticles with homogeneously spherical shape and narrow size distribution, a simp

关键词: spherical     distribution     groundwater     interest     Denitrification    

Effects of humic acid and surfactants on the aggregation kinetics of manganese dioxide colloids

Xiaoliu HUANGFU,Yaan WANG,Yongze LIU,Xixin LU,Xiang ZHANG,Haijun CHENG,Jin JIANG,Jun MA

《环境科学与工程前沿(英文)》 2015年 第9卷 第1期   页码 105-111 doi: 10.1007/s11783-014-0726-1

摘要: The aggregation of common manganese dioxide (MnO ) colloids has great impact on their surface reactivity and therefore on their fates as well as associated natural and synthetic contaminants in engineered (e.g. water treatment) and natural aquatic environments. Nevertheless, little is known about the aggregation kinetics of MnO colloids and the effect of humic acid (HA) and surfactants on these. In this study, the early stage aggregation kinetics of MnO nanoparticles in NaNO and Ca(NO ) solutions in the presence of HA and surfactants (i.e., sodium dodecyl sulfate (SDS), and polyvinylpyrrolidone (PVP)) were modeled through time-resolved dynamic light scattering. In the presence of HA, MnO colloids were significantly stabilized with a critical coagulation concentration (CCC) of ~300 mmol·L NaNO and 4 mmol·L Ca(NO ) . Electrophoretic mobility (EPM) measurements confirmed that steric hindrance may be primarily responsible for increasing colloidal stability in the presence of HA. Moreover, the molecular and/or chemical properties of HA might impact its stabilizing efficiency. In the case of PVP, only a slight increase of aggregation kinetics was observed, due to steric reactions originating from adsorbed layers of PVP on the MnO surface. Consequently, higher CCC values were obtained in the presence of PVP. However, there was a negligible reduction in MnO colloidal stability in the presence of 20 mg·L SDS.

关键词: humic acid     surfactant     aggregation kinetics     drinking water     manganese dioxide colloids    

表面活性剂在造纸工业中的应用和研究进展

赵传山,唐杰斌,陈克复,于冬梅,吴朝军

《中国工程科学》 2009年 第11卷 第4期   页码 17-20

摘要:

根据制浆造纸各个工艺的特点,详细介绍了制浆造纸工艺中所用到的表面活性剂,深入探讨了表面活性剂在制浆造纸中的作用效果和作用机理,最后提出了制浆造纸用表面活性剂的发展趋势。

关键词: 表面活性剂     制浆     造纸     机理    

氟化石墨嵌锂和嵌钠行为的第一性原理研究 Article

饶凤雅,王志强,徐波,陈立泉,欧阳楚英

《工程(英文)》 2015年 第1卷 第2期   页码 243-246 doi: 10.15302/J-ENG-2015039

摘要:

通过第一性原理计算研究了嵌入锂/钠后氟化石墨结构的演化过程。计算考虑了单层氟化石墨上和体相氟化石墨中的锂/钠嵌入。与锂的嵌入相比,将钠嵌入氟化石墨 (CF) 正极中所表现的循环性能更好,这是因为锂–氟间相互作用和钠–氟间相互作用的强度和特点不同。锂和氟之间的相互作用与钠和氟之间的相互作用相比更强且更集中。这种锂–氟之间强烈的库仑吸引作用破坏了F—C,并将氟原子拔出,从而导致在锂嵌入过程中形成单层石墨烯。

关键词: 第一性原理     锂/钠可充电电池     氟化石墨    

Synthesis and

Wen Zhao, Jiahua Xing, Tianming Xu, Weili Peng, Xinghai Liu

《化学科学与工程前沿(英文)》 2017年 第11卷 第3期   页码 363-368 doi: 10.1007/s11705-016-1595-x

摘要: Pyrazole carboxamide derivatives represent an important class of fungicides in agrochemicals. To find more novel structural pyrazole carboxamides, a novel series of 3-(trifluoromethyl)-1 -pyrazole-4-carboxamide compounds were prepared from ethyl 4,4,4-trifluoroacetoacetate and triethyl orthoformate as starting materials. All the products were characterized by Fourier transform infrared spectroscopy, H nuclear magnetic resonance (NMR), C NMR, F NMR and mass spectrography. The bioassay results showed these fluorine-containing pyrazole carboxamides have a weak fungicidal activity but some of them exhibit a good nematocidal activity against .

关键词: fluorinated pyrazole carboxamide     synthesis     nematocidal activity     structure and activity relationship    

Enhanced separation of tetrafluoropropanol from water via carbon nanotubes membranes: insights from molecular dynamics simulations

《环境科学与工程前沿(英文)》 2023年 第17卷 第11期 doi: 10.1007/s11783-023-1740-y

摘要:

● MD simulations unveil the transport mechanism for TFP-water mixture through CNTs.

关键词: Fluorinated alcohol     Carbon nanotube     Molecular simulation     Fluorine modified    

Transport of antibiotic resistance plasmids in porous media and the influence of surfactants

Peipei Chen, Chaoqi Chen, Xiqing Li

《环境科学与工程前沿(英文)》 2018年 第12卷 第2期 doi: 10.1007/s11783-017-0986-7

摘要: Transport of engineered antibiotic resistance plasmids in porous media has been reported to potentially cause significant spreading of antibiotic resistance in the environment. In this work, transport of an indigenous resistance plasmid pK5 in porous media was investigated through packed column experiments. At identical ionic strengths in CaCl solutions, the breakthroughs of pK5 from soil columns were very close to those from quartz sand columns, indicating that transport of pK5 in quartz sand and soil was similar. A similarity in transport behavior was also found between pK5 and an engineered plasmid pBR322 that has approximately the same number of base pairs as pK5. The influence of surfactants, a major group of constituents in soil solutions, was examined using an engineered plasmid pcDNA3.1(+)/myc-His A. The impact of an anionic surfactant, sodium dodecyl sulfate (SDS), was negligible at concentrations up to 200 mg·L . Cetyltrimethyl ammonium bromide (CTAB), a cationic surfactant, was found to significantly enhance plasmid adsorption at high concentrations. However, at environmentally relevant concentrations (<1 mg·L ), the effect of this surfactant was also minimal. The negligible impact of surfactants and the similarity between the transport of engineered and indigenous plasmids indicate that under environmentally relevant conditions, indigenous plasmids in soil also have the potential to transport over long distances and lead to the spreading of antibiotic resistance.

关键词: Indigenous plasmid     Transport     Porous media     Surfactants    

Removal of Ni(II) ions from wastewater by micellar enhanced ultrafiltration using mixed surfactants

Amar D. Vibhandik, Kumudini V. Marathe

《化学科学与工程前沿(英文)》 2014年 第8卷 第1期   页码 79-86 doi: 10.1007/s11705-014-1407-0

摘要: Ni(II) ions were removed from aqueous waste using micellar enhanced ultrafiltration (MEUF) with a mixture of surfactants. The surfactant mixture was the nonionic surfactant Tween 80 (TW80) mixed with the anionic surfactant sodium dodecyl sulfate (SDS) in different molar ratios ranging from 0.1–1.5. The operational variables of the MEUF process such as pH, applied pressure, surfactant to metal ion ratio and nonionic to ionic surfactant molar ratio (α) were evaluated. Rejection of Ni and TW80 was 99% and 98% respectively whereas that for SDS was 65%. The flux and all resistances (fouling resistance, resistance due to concentration polarization) were measured and calculated for entire range of α respectively. A calculated flux was found to be declined with time, which was mainly attributed to concentration polarization rather than resistance from membrane fouling.

关键词: MEUF     Ni (II) ions     membrane resistance     concentration polarization     mixed surfactants    

绿色表面活性剂在农药加工中的应用

高楠,张春华,张宗俭

《中国工程科学》 2009年 第11卷 第4期   页码 36-38

摘要:

对绿色表面活性剂在农药加工中的应用进行了简要介绍,对应用脂肪醇聚氧乙烯醚(AEO)、脂肪醇聚氧乙烯醚硫酸盐(AES)、α-烯基磺酸盐(AOS)、烷基糖苷(APG)的农药制剂进行了开发,并与传统表面活性剂进行比较,提出此类表面活性剂在农药加工中的应用对于环境保护具有重要意义。

关键词: 绿色表面活性剂     农药加工     环境保护    

表面活性剂在制革准备和染色中的研究进展

龚英,陈武勇,成康

《中国工程科学》 2009年 第11卷 第4期   页码 31-35

摘要:

介绍了表面活性剂在制革准备工段和染色工序中的作用;论述了溶剂介质皮革染色技术的研究现状及其具有高染料竭用率等优势;应加强皮革软化工序中表面活性剂作用的进一步研究的必要性。

关键词: 表面活性剂     皮革     准备工序     染色     溶剂介质    

石墨资源及材料产业高质量发展战略研究

孙传尧 ,申士富 ,王文利 ,袁国辉 ,黄正宏 ,张以河

《中国工程科学》 2022年 第24卷 第3期   页码 29-39 doi: 10.15302/J-SSCAE-2022.03.004

摘要:

天然石墨是一种由新制备及应用技术引领发展的新技术矿产,是支撑我国战略性新兴产业发展的重要原材料。本文分析了石墨资源及材料产业高质量发展的需求,总结了我国石墨资源及材料产业的发展现状,分析了我国石墨产业高质量发展的潜力和面临的主要问题,提出了我国石墨资源及材料产业下一步发展的目标。在此基础上,本文提出了石墨资源及材料产业高质量发展的举措,包括以石墨精深加工为中心布局技术创新体系;优化资源配置,加快发展绿色石墨企业及绿色石墨矿山;加强平台能力建设,夯实产业链供应链技术创新基础;重点突破石墨烯独特物性的专属应用,避免过度宣传。研究建议,健全我国石墨全产业链及供应链数据库,建立长期支持我国石墨产业高质量发展的政策机制,加快资源整合及“国际石墨谷”建设,规划布局创新能力平台和加强人才培养。

关键词: 石墨;石墨深加工;石墨精矿;石墨烯;氟化石墨    

标题 作者 时间 类型 操作

Efficient promotion of methane hydrate formation and elimination of foam generation using fluorinatedsurfactants

Quan CAO, Dongyan XU, Huanfei XU, Shengjun LUO, Rongbo GUO

期刊论文

Controlling microbiological interfacial behaviors of hydrophobic organic compounds by surfactants in

ZHANG Dong,ZHU Lizhong

期刊论文

New insights into different surfactants’ impacts on sludge fermentation: Focusing on the particular metabolic

期刊论文

Influences of spinel type and polymeric surfactants on the size evolution of colloidal magnetic nanocrystals

Tahereh R. BASTAMI,Mohammad H. ENTEZARI,Chiwai KWONG,Shizhang QIAO

期刊论文

Synthesis of nanoiron by microemulsion with Span/Tween as mixed surfactants for reduction of nitrate

ZHANG Yunxia, LI Tielong, JIN Zhaohui, WANG Wei, WANG Shuaima

期刊论文

Effects of humic acid and surfactants on the aggregation kinetics of manganese dioxide colloids

Xiaoliu HUANGFU,Yaan WANG,Yongze LIU,Xixin LU,Xiang ZHANG,Haijun CHENG,Jin JIANG,Jun MA

期刊论文

表面活性剂在造纸工业中的应用和研究进展

赵传山,唐杰斌,陈克复,于冬梅,吴朝军

期刊论文

氟化石墨嵌锂和嵌钠行为的第一性原理研究

饶凤雅,王志强,徐波,陈立泉,欧阳楚英

期刊论文

Synthesis and

Wen Zhao, Jiahua Xing, Tianming Xu, Weili Peng, Xinghai Liu

期刊论文

Enhanced separation of tetrafluoropropanol from water via carbon nanotubes membranes: insights from molecular dynamics simulations

期刊论文

Transport of antibiotic resistance plasmids in porous media and the influence of surfactants

Peipei Chen, Chaoqi Chen, Xiqing Li

期刊论文

Removal of Ni(II) ions from wastewater by micellar enhanced ultrafiltration using mixed surfactants

Amar D. Vibhandik, Kumudini V. Marathe

期刊论文

绿色表面活性剂在农药加工中的应用

高楠,张春华,张宗俭

期刊论文

表面活性剂在制革准备和染色中的研究进展

龚英,陈武勇,成康

期刊论文

石墨资源及材料产业高质量发展战略研究

孙传尧 ,申士富 ,王文利 ,袁国辉 ,黄正宏 ,张以河

期刊论文