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Theoretical study on Janus graphene oxide membrane for water transport

Quan Liu, Mingqiang Chen, Yangyang Mao, Gongping Liu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 913-921 doi: 10.1007/s11705-020-1954-5

Abstract: Graphene oxide (GO) membranes have received considerable attention owing to their outstanding water-permeationIn this study, we performed molecular simulations to explore the permeation of a water–ethanol mixtureConsequently, using the optimized Janus GO membrane, infinite water selectivity and outstanding waterThis study contributes to explaining the role of oxidized regions in water permeation via GO membranesand suggests that Janus GO membranes could be used as potential candidates for water–ethanol separation

Keywords： graphene oxide membrane     molecular dynamics simulation     water permeation     water-ethanol separation     oxidized    

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A Predictive Instrument for Sensitive and Expedited Measurement of Ultra-Barrier Permeation Article

Jianfeng Wanyan, Kun Cao, Zhiping Chen, Yun Li, Chenxi Liu, Runqing Wu, Xiao-Dong Zhang, Rong Chen

Engineering 2021, Volume 7, Issue 10,   Pages 1461-1470 doi: 10.1016/j.eng.2021.02.017

Abstract: devices poses a significant engineering challenge regarding the metrology of high barriers against waterTo detect trace amount of water vapor permeation through an ultra-barrier with extremely high sensitivityAfter calibration, the lower detection limit for water vapor permeation is in the range of 10-7<permeation rate can be forecasted from non-steady-state results, thus enabling effective measurementof ultra-barrier permeation within a significantly shorter test period.

Keywords： Water vapor permeation     Ultra-barrier     Predictive model     Quadrupole mass spectrometer    

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Porous ultrathin-shell microcapsules designed by microfluidics for selective permeation and stimuli-triggered

Frontiers of Chemical Science and Engineering   Pages 1643-1650 doi: 10.1007/s11705-022-2201-z

Abstract: Generally, microcapsules with solid shells lack selective permeation and only exhibit a simple releaseHere, we use ultrathin-shell water-in-oil-in-water double emulsions as templates and design porous ultrathin-shellmicrocapsules for selective permeation and multiple stimuli-triggered release.emulsions by microfluidic devices, negatively charged shellac nanoparticles dispersed in the inner waterporous ultrathin-shell microcapsules exhibit excellent properties, including tunable size, selective permeation

Keywords： microcapsule     emulsion     microfluidics     selective permeation     stimuli-triggered release    

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ethylene-co-vinyl alcohol) molecular weight and vinyl alcohol content on morphology, antifouling, and permeation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1484-1502 doi: 10.1007/s11705-023-2331-y

Abstract: Interestingly, the PSF/EVOH32 membranes showed high hydrophilicity and achieved a pure water permeability

Keywords： polysulfone     blend modification     ultrafiltration membrane     formation hydrodynamics     poly(ethylene-co-vinyl alcohol) copolymer    

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Effect of PEG additives on properties and morphologies of polyetherimide membranes prepared by phase inversion

Jian CHEN, Jiding LI, Xia ZHAN, Xiaolong HAN, Cuixian CHEN,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 3,   Pages 300-306 doi: 10.1007/s11705-009-0280-8

Abstract: (ethylene glycol) (PEG) additive as a pore-former on the structure formation of membranes and their permeationwere prepared by using polyetherimide/-methyl-2-pyrrolidone/PEG (PEI/NMP/PEG) casting solution and waterPEG to PEI, were characterized by scanning electron microscope (SEM) observations, measurements of waterFurthermore, the membranes were characterized for pure water flux and rejection of solute and by SEM

Keywords： permeation     ethylene     filtration     PEI/NMP/PEG     membrane    

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Preparation and permeability of ZSM-35 zeolite membranes on porous stainless steel tubes

ZHU Gang, WANG Jinqu, ZHANG Yan, LU Jinming, XIU Jinghai

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 3,   Pages 217-220 doi: 10.1007/s11705-007-0039-z

Abstract: ethylenediamine as the template, compared with those with 1-butylamine as the template, showed relatively higher permeation

Keywords： single-component permeability     diffusion     different     permeation     orientation    

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A CO and CO

Guoxing Chen, Marc Widenmeyer, Binjie Tang, Louise Kaeswurm, Ling Wang, Armin Feldhoff, Anke Weidenkaff

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 3,   Pages 405-414 doi: 10.1007/s11705-019-1886-0

Abstract: A constant oxygen permeation flux of about 0.63 mL·min ·cm at 1173 K through a 0.65 mm thick membrane

Keywords： K2NiF4 structure     oxygen permeation membrane     CO2 and CO resistances     CO    

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Novel methods by using non-vacuum insulated tubing to extend the lifetime of the tubing

Chenglong ZHOU,Guojin ZHU,Yongxiang XU,Jifei YU,Xiaoliang ZHANG,Hongzhi SHENG

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 142-147 doi: 10.1007/s11708-015-0357-7

Abstract: The analysis of the failure mechanics, namely hydrogen permeation of vacuum insulated tubing (VIT), indicated

Keywords： insulated tubing     cyclic steam stimulation     insulation material     thermal conductivity     foam-glass     hydrogen permeation    

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Water,Water resources and Saving water in Agriculture

Liu Gengling

Strategic Study of CAE 2000, Volume 2, Issue 7,   Pages 39-42

Abstract:

The Characteristics of water and the issue of water resources in China are mainly discussed in theThe viewpoint that the situation of water resources in China cann´t be judged simplily by the amountof average yearly precipitation, and the exploitation and utilization of water resources depend on theIn general the water resources in China is enough for using, its unbalnced distribution in space-timeLots of experiences about bringing water under control and using water were accumulated by the Chinese

Keywords： water     water resources     saving water in agriculture     decentralized storage of water    

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Managing water for life

Daniel P. LOUCKS, Haifeng JIA

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 255-264 doi: 10.1007/s11783-011-0359-6

Abstract: Water is essential for life.of the entire engineering infrastructure devoted to the treatment, regulation and beneficial uses of water, occasionally sufficient quantities and qualities of water become scarce.When this happens, just how do we decide how much less water to allocate to all of us and the activitiesThis question of deciding just how much water to allocate to each water user and for the maintenance

Keywords： water stress     aquatic ecosystems     sustainable water resource allocations     ecosystem water requirements    

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The effect of different agricultural management practices on irrigation efficiency, water use efficiencyand green and blue water footprint

La ZHUO, Arjen Y. HOEKSTRA

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 185-194 doi: 10.15302/J-FASE-2017149

Abstract: This paper explores the effect of varying agricultural management practices on different water efficiencyindicators: irrigation efficiency (IE), crop water use efficiency (WUE), and green and blue water footprintResults show that deficit irrigation most effectively improved blue water use, by increasing IE (by 5%Improvements in one water efficiency indicator may cause a decline in another.

Keywords： field management     irrigation efficiency     water footprint     water productivity     water use efficiency    

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Emergency drinking water treatment in source water pollution incident-technology and practice in China

Xiaojian ZHANG , Chao CHEN ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 364-368 doi: 10.1007/s11783-009-0027-2

Abstract: An investigation into emergency potable water treatment technologies was conducted to investigate China’s water pollution situation.This paper presents the three largest and most significant water pollution incidents in China to dateRiver in November 2005, the cadmium pollution incident in the Beijiang River in December 2005, and the watercrisis with odorous tap water in Wuxi City in May 2007.

Keywords： emergency drinking water treatment     water pollution     adsorption     oxidation     precipitation    

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Molecular analysis of bacterial community in the tap water with different water ages of a drinking water

Feng Wang, Weiying Li, Yue Li, Junpeng Zhang, Jiping Chen, Wei Zhang, Xuan Wu

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 3, doi: 10.1007/s11783-018-1020-4

Abstract: Bacterial community in the drinking water distribution system (DWDS) was regulated by multiple environmentalfactors, many of which varied as a function of water age.In this study, four water samples with different water ages, including finished water (FW, 0 d) and tapwater (TW) [TW1 (1 d), TW2(2 d) and TW3(3 d)], were collected along with the mains of a practical DWDSResults indicated that the residual chlorine declined with the increase of water age, accompanied by

Keywords： Bacterial community     Water age     High-throughput sequencing technique     Drinking water distribution system    

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Title Author Date Type Operation

Theoretical study on Janus graphene oxide membrane for water transport

Quan Liu, Mingqiang Chen, Yangyang Mao, Gongping Liu

Journal Article

A Predictive Instrument for Sensitive and Expedited Measurement of Ultra-Barrier Permeation

Jianfeng Wanyan, Kun Cao, Zhiping Chen, Yun Li, Chenxi Liu, Runqing Wu, Xiao-Dong Zhang, Rong Chen

Journal Article

Porous ultrathin-shell microcapsules designed by microfluidics for selective permeation and stimuli-triggered

Journal Article

ethylene-co-vinyl alcohol) molecular weight and vinyl alcohol content on morphology, antifouling, and permeation

Journal Article

Effect of PEG additives on properties and morphologies of polyetherimide membranes prepared by phase inversion

Jian CHEN, Jiding LI, Xia ZHAN, Xiaolong HAN, Cuixian CHEN,

Journal Article

Preparation and permeability of ZSM-35 zeolite membranes on porous stainless steel tubes

ZHU Gang, WANG Jinqu, ZHANG Yan, LU Jinming, XIU Jinghai

Journal Article

A CO and CO

Guoxing Chen, Marc Widenmeyer, Binjie Tang, Louise Kaeswurm, Ling Wang, Armin Feldhoff, Anke Weidenkaff

Journal Article

Novel methods by using non-vacuum insulated tubing to extend the lifetime of the tubing

Chenglong ZHOU,Guojin ZHU,Yongxiang XU,Jifei YU,Xiaoliang ZHANG,Hongzhi SHENG

Journal Article

Ju Xiaojie: New Functional Materials for Water Treatment and Water Detection (2022-4-16)

9 Jun 2022

Conference Videos

Water,Water resources and Saving water in Agriculture

Liu Gengling

Journal Article

Wang Guangqian: Global Water Cycle and Water Resource Utilization (2019-10-17)

王光谦(院士)

20 Jan 2021

Conference Videos

Managing water for life

Daniel P. LOUCKS, Haifeng JIA

Journal Article

The effect of different agricultural management practices on irrigation efficiency, water use efficiencyand green and blue water footprint

La ZHUO, Arjen Y. HOEKSTRA

Journal Article

Emergency drinking water treatment in source water pollution incident-technology and practice in China

Xiaojian ZHANG , Chao CHEN ,

Journal Article

Molecular analysis of bacterial community in the tap water with different water ages of a drinking water

Feng Wang, Weiying Li, Yue Li, Junpeng Zhang, Jiping Chen, Wei Zhang, Xuan Wu

Journal Article