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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

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 443-451 doi: 10.1007/s11708-020-0683-2

Abstract: This paper investigated the ability of five fluorinated surfactants: potassium perfluorobutane sulfonate

Keywords： methane hydrate     fluorinated surfactants     homogeneous promoter     foam elimination     stability    

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Controlling microbiological interfacial behaviors of hydrophobic organic compounds by surfactants in

ZHANG Dong,ZHU Lizhong

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 3,   Pages 305-315 doi: 10.1007/s11783-014-0647-z

Abstract: The participation of surfactants facilitates the mass transport of HOCs in both the physicochemical andThe effects and underlying mechanisms of surfactants on the physicochemical desorption of soil-sorbedIn summary, surfactants affect the microbiological interfacial behaviors of HOCs during three consecutiveAlthough surfactants cannot easily directly affect the intracellular enzymatic metabolism of HOCs dueto the steric hindrace, the presence of surfactants can indirectly enhanced the metabolism by increasing

Keywords： biodegradation     sorption     transmembrane transport     microbiological interfaces     surfactants    

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

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1527-6

Abstract:

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

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

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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

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 3,   Pages 378-385 doi: 10.1007/s11705-014-1441-y

Abstract: Two types of polymeric surfactants, PEG and PVP , were used for the preparation of magnetic ferritenanoparticles exhibited higher crystalinity and size evolution than MnFe O nanoparticles with use of the two surfactantsIt is proposed that this observation is due to fewer tendencies of surfactants on the surface of Fe O

Keywords： spinel type     polymeric surfactant     size evolution     mangnetic ferrite nanoparticle    

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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

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 4,   Pages 466-470 doi: 10.1007/s11783-007-0074-5

Abstract: 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

Keywords： spherical     distribution     groundwater     interest     Denitrification    

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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

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 1,   Pages 105-111 doi: 10.1007/s11783-014-0726-1

Abstract: little is known about the aggregation kinetics of MnO colloids and the effect of humic acid (HA) and surfactantsaggregation kinetics of MnO nanoparticles in NaNO and Ca(NO ) solutions in the presence of HA and surfactants

Keywords： humic acid     surfactant     aggregation kinetics     drinking water     manganese dioxide colloids    

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Development and application of surfactants in pulp andpaper making industry

Zhao Chuanshan,Tang Jiebin,Chen Kefu,Yu Dongmei,Wu Chaojun

Strategic Study of CAE 2009, Volume 11, Issue 4,   Pages 17-20

Abstract: style="text-align: justify;">According to the characteristics of pulp and paper making technics, the surfactantsThe effect and mechanism of the surfactants used at pulp and paper making technology were discussed.At last, the development of the surfactants in pulp and paper making industry was put forward.

Keywords： surfactants     pulp making     paper making     mechanism    

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First-Principles Study of Lithium and Sodium Atoms Intercalation in Fluorinated Graphite Article

Fengya Rao, Zhiqiang Wang, Bo Xu, Liquan Chen, Chuying Ouyang

Engineering 2015, Volume 1, Issue 2,   Pages 243-246 doi: 10.15302/J-ENG-2015039

Abstract:

The structure evolution of fluorinated graphite (CFx) upon the Li/Na intercalation

Keywords： first-principles     Li/Na rechargeable batteries     fluorinated graphite    

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Synthesis and

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

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 3,   Pages 363-368 doi: 10.1007/s11705-016-1595-x

Abstract: 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 .

Keywords： fluorinated pyrazole carboxamide     synthesis     nematocidal activity     structure and activity relationship    

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

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 11, doi: 10.1007/s11783-023-1740-y

Abstract:

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

Keywords： Fluorinated alcohol     Carbon nanotube     Molecular simulation     Fluorine modified    

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

Peipei Chen, Chaoqi Chen, Xiqing Li

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 2, doi: 10.1007/s11783-017-0986-7

Abstract: The influence of surfactants, a major group of constituents in soil solutions, was examined using anThe negligible impact of surfactants and the similarity between the transport of engineered and indigenous

Keywords： Indigenous plasmid     Transport     Porous media     Surfactants    

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

Amar D. Vibhandik, Kumudini V. Marathe

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 1,   Pages 79-86 doi: 10.1007/s11705-014-1407-0

Abstract: ions were removed from aqueous waste using micellar enhanced ultrafiltration (MEUF) with a mixture of surfactants

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

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The application of green surfactants in pesticide formulation

Gao Nan,Zhang Chunhua,Zhang Zongjian

Strategic Study of CAE 2009, Volume 11, Issue 4,   Pages 36-38

Abstract:

The application of green surfactants in pesticide processing was discussedFormulations, which utilize green surfactants such as AEO, AES, AOS and APG rather than traditional surfactantsComparing with traditional surfactants, the application of green surfactants in pesticide processing

Keywords： green surfactant     pesticide processing     environment protection    

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Development of surfactants in leather-making beamhouse and dyeing processes

Gong Ying,Chen Wuyong,Cheng Kang

Strategic Study of CAE 2009, Volume 11, Issue 4,   Pages 31-35

Abstract:

The functions of surfactants in leather-making beamhouse and dyeing processesThe necessity of studying the functions of surfactants in bating process in leather-making industry was

Keywords： surfactant     leather     beamhouse     dyeing     solvent medium    

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High Quality Development of Graphite Resource and Graphite Material Industry

Sun Chuanyao , Shen Shifu , Wang Wenli , Yuan Guohui , Huang Zhenghong , Zhang Yihe

Strategic Study of CAE 2022, Volume 24, Issue 3,   Pages 29-39 doi: 10.15302/J-SSCAE-2022.03.004

Abstract:

Natural graphite is a new-technology mineral resource led by new mineral preparation and application technologies and an important raw material that supports the development of China’s strategic emerging industries. This paper analyzes the demand for high-quality development of graphite resources and the graphite material industry, summarizes the development status, unveiled development potentials and major challenges, and puts forward goals for next stage development. Furthermore, this paper proposes the following measures: (1) establishing a technology innovation system that focuses on the deep processing of graphite; (2) optimizing the allocation of resources and boosting the development of green graphite plants and mines; (3) strengthening the capacities of platforms to consolidate the technological innovation foundation for industrial and supply chains; and (4) focusing on breakthroughs in the xclusive application of graphene’s uniqu physical properties and avoiding excessive marketing. Additionally, it is necessary to set up a sophisticate database that covers the entire industrial and supply chains of graphite, establish a long-term policy mechanism that supports the high-quality development of China’s graphite industry, accelerate resource integration to construct an international graphite valley, and improve innovation platforms to enhance talent trainning.

Keywords： graphite     graphite deep processing     graphite concentrate     graphene     fluorinated graphite    

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Title Author Date Type Operation

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

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

Journal Article

Controlling microbiological interfacial behaviors of hydrophobic organic compounds by surfactants in

ZHANG Dong,ZHU Lizhong

Journal Article

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

Journal Article

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

Journal Article

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

Journal Article

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

Journal Article

Development and application of surfactants in pulp andpaper making industry

Zhao Chuanshan,Tang Jiebin,Chen Kefu,Yu Dongmei,Wu Chaojun

Journal Article

First-Principles Study of Lithium and Sodium Atoms Intercalation in Fluorinated Graphite

Fengya Rao, Zhiqiang Wang, Bo Xu, Liquan Chen, Chuying Ouyang

Journal Article

Synthesis and

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

Journal Article

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

Journal Article

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

Peipei Chen, Chaoqi Chen, Xiqing Li

Journal Article

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

Amar D. Vibhandik, Kumudini V. Marathe

Journal Article

The application of green surfactants in pesticide formulation

Gao Nan,Zhang Chunhua,Zhang Zongjian

Journal Article

Development of surfactants in leather-making beamhouse and dyeing processes

Gong Ying,Chen Wuyong,Cheng Kang

Journal Article

High Quality Development of Graphite Resource and Graphite Material Industry

Sun Chuanyao , Shen Shifu , Wang Wenli , Yuan Guohui , Huang Zhenghong , Zhang Yihe

Journal Article