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Mechanism of ethanol/water reverse separation through a functional graphene membrane: a molecular simulation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 3,   Pages 347-357 doi: 10.1007/s11705-022-2246-z

Abstract: However, to date, the reverse-separation performance of ethanol/water is poor and the separation mechanismUsing molecular dynamics simulations, for the first time, we reveal two-way selectivity in ethanol/waterseparation through functional graphene membranes.Pristine graphene (PG) exhibits reverse-selective behavior with higher ethanol fluxes than water, resultingperformance, with an ethanol/water separation factor of 34 and a flux value of 69.3 kg∙m‒2

Keywords： reverse separation     graphene membrane     ethanol/water separation     molecular simulation    

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Effects of baffles on separation of aqueous ethanol solution with hollow fibers

Zhihong YANG, Guoliang ZHANG, Lan LIN, Danping REN, Qin MENG, Hongzi ZHANG

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1,   Pages 68-72 doi: 10.1007/s11705-009-0130-8

Abstract: fiber membranes, coated with a 7 μm polydimethyl-siloxane, were operated as structural packing in the separationof ethanol-water solutions.The parallel flow mode was chosen for separation due to the stronger driving force of the concentrationTwo baffles were installed on the shell side of the membrane contactors to enhance separation, which

Keywords： hollow fiber     membrane contactor     baffle     mass-transfer     ethanol-water    

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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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Investigation of bubble diameter and flow regime between water and dilute aqueous ethanol solutions in

Baharak SAJJADI, Mostafa Keshavarz MORAVEJI, Reza DAVARNEJAD

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 2,   Pages 194-202 doi: 10.1007/s11705-010-1019-2

Abstract: In this study, the effect of ethanol addition into pure water and its concentration on bubble diameterAir and water with ethanol (concentration ranging from 0%–1%, v/v) were as dispersed and continuous phasesFurthermore, the bubbles diameter in pure water was nearly 4 times higher than that of ethanol with concentrationThe transition flow regime occurred after this datum although in pure water, a homogenous flow regimeThe gas hold-up in dilute ethanol solutions were more than (around 2 times) that of pure water and increased

Keywords： airlift rector     bubble diameter     gas hold-up     flow regime     ethanol    

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Highly hydrophobic oil−water separation membrane: reutilization of waste reverse osmosis membrane

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1606-1615 doi: 10.1007/s11705-022-2200-0

Abstract: techniques were applied to characterize the obtained membranes, which were then used to separate the oil–watermodified membrane displayed good hydrophobicity with a contact angle of 135.2° ± 0.3°, and its oil–waterseparation performance was as high as 97.8%.After 20 recycle tests, the oil–water separation performance remained more than 96%, which was attributed

Keywords： oil–water separation     wasted reverse osmosis membrane     hydrophobic modification    

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Bioinspired and biomimetic membranes for water purification and chemical separation: A review

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1412-8

Abstract:

•The history of biological and artificial water channels is reviewed

Keywords： Aquaporins     Artificial water channels     Biomimetic membranes     Chemical separation and water purification    

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Biodegradable, superhydrophobic walnut wood membrane for the separation of oil/water mixtures

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 9,   Pages 1377-1386 doi: 10.1007/s11705-022-2157-z

Abstract: The preparation of environmentally friendly oil/water separation materials remains a great challenge.In this paper, a degradable fluorine-free superhydrophobic film (max. water contact angle of approximatelyIn addition, after cross-laminating the two samples, the films had the ability to separate oil and waterThe method has potential for the large-scale fabrication of degradable superhydrophobic filtration separation

Keywords： wood nanotechnology     superhydrophobic     biodegradable     surface modification     oil/water separation    

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Fabrication of a superhydrophilic/underwater superoleophobic stainless steel mesh for oil/water separation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 46-55 doi: 10.1007/s11705-022-2170-2

Abstract: wastewater produced each day, it is important to develop superhydrophilic/underwater superoleophobic oil/waterseparation membranes with ultrahigh flux and high separation efficiency.The obtained mesh was able to separate oil/water mixtures only by gravity.In addition, the mesh showed high-efficiency separation ability (99.2%) and ultrahigh flux (235239 L∙

Keywords： oil/water separation     N-isopropylacrylamide     stainless steel mesh     ultrahigh flux    

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Functional flax fiber with UV-induced switchable wettability for multipurpose oil-water separation

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1588-6

Abstract:

● A PAA-ZnO-HDTMS flax fiber with UV-induced switchable wettability was developed.

Keywords： Flax fiber     Switchable wettability     ZnO-HDTMS coating     Oil-water separation    

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Imprinted membranes for sustainable separation processes

Laura Donato, Enrico Drioli

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 775-792 doi: 10.1007/s11705-020-1991-0

Abstract: recycling raw materials increased the interest in the production of highly selective and efficient separationThis work discusses the concept and separation mechanisms of imprinted membranes.The recent advances in water treatment, such as pesticide removal and recovery of metal ions, are alsomembranes in hybrid processes are highlighted, and a look into the future of membrane separations for water

Keywords： sustainable processes     membrane separation     molecular recognition     imprinted membranes     water treatment    

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Easily-manufactured paper-based materials with high porosity for adsorption/separation applications in

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 830-839 doi: 10.1007/s11705-022-2267-7

Abstract: The separation efficiency of the emulsified oil was 99.3%, and the water flux was up to 2020 L·m

Keywords： adsorption     oil–water separation     underwater superoleophobicity     wastewater treatment    

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MILP synthesis of separation processes for waste oil-in-water emulsions treatment

Zorka N. Pintarič,Gorazd P. Škof,Zdravko Kravanja

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 1,   Pages 120-130 doi: 10.1007/s11705-016-1559-1

Abstract: This paper presents a novel synthesis method for designing integrated processes for oil-in-water (O/WGeneral superstructure involving alternative separation technologies is developed and modelled as a mixedSeparation processes in the superstructure are divided into three main sections of which the pretreatmentIntegrated processes composed of selected separation techniques for given ranges of input chemical oxygenindustrial case study for deriving optimal combinations of technologies for treating diverse oil-in-water

Keywords： oil-in-water emulsion     chemical oxygen demand     superstructure     process synthesis     MILP    

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Repeated batch fermentation with water recycling and cell separation for microbial lipid production

Yumei WANG, Wei LIU, Jie BAO

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 453-460 doi: 10.1007/s11705-012-1210-8

Abstract: Large waste water disposal was the major problem in microbial lipid fermentation because of low yieldIn this study, the repeated batch fermentation was investigated for reducing waste water generated inThe result showed that at least 70% of the waste water was reduced, while lipid production maintainedOur method provided a practical option for reducing the waste water generated from microbial lipid fermentation

Keywords： batch fermentation     microbial lipid     Trichosporon cutaneum CX1     flocculation     waste water    

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Functional magnetic nanoparticles for facile viable but nonculturable bacteria separation and purification

Chunming Wang, Huirong Lin, Chengsong Ye

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0874-6

Abstract: But Nonculturable (VBNC) Bacteria, which represent a unique population of microorganisms in drinking waterWe therefore introduce a novel method of VBNC cell separation and purification in this paper.

Keywords： Drinking water biosafety     VBNC     Nanoparticles     Magnetic separation and purification    

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properties of a silver particle-coated and 1-dodecanethiol-modified superhydrophobic melamine sponge for oil/waterseparation

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8,   Pages 1237-1246 doi: 10.1007/s11705-022-2140-8

Abstract: The water contact angle of Ag-DDT-MS reached 159.2°.

Keywords： melamine sponge     oil-absorbing material     hydrophobic     oil-water separation     oil absorption capacity    

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Title Author Date Type Operation

Mechanism of ethanol/water reverse separation through a functional graphene membrane: a molecular simulation

Journal Article

Effects of baffles on separation of aqueous ethanol solution with hollow fibers

Zhihong YANG, Guoliang ZHANG, Lan LIN, Danping REN, Qin MENG, Hongzi ZHANG

Journal Article

Theoretical study on Janus graphene oxide membrane for water transport

Quan Liu, Mingqiang Chen, Yangyang Mao, Gongping Liu

Journal Article

Investigation of bubble diameter and flow regime between water and dilute aqueous ethanol solutions in

Baharak SAJJADI, Mostafa Keshavarz MORAVEJI, Reza DAVARNEJAD

Journal Article

Highly hydrophobic oil−water separation membrane: reutilization of waste reverse osmosis membrane

Journal Article

Bioinspired and biomimetic membranes for water purification and chemical separation: A review

Journal Article

Biodegradable, superhydrophobic walnut wood membrane for the separation of oil/water mixtures

Journal Article

Fabrication of a superhydrophilic/underwater superoleophobic stainless steel mesh for oil/water separation

Journal Article

Functional flax fiber with UV-induced switchable wettability for multipurpose oil-water separation

Journal Article

Imprinted membranes for sustainable separation processes

Laura Donato, Enrico Drioli

Journal Article

Easily-manufactured paper-based materials with high porosity for adsorption/separation applications in

Journal Article

MILP synthesis of separation processes for waste oil-in-water emulsions treatment

Zorka N. Pintarič,Gorazd P. Škof,Zdravko Kravanja

Journal Article

Repeated batch fermentation with water recycling and cell separation for microbial lipid production

Yumei WANG, Wei LIU, Jie BAO

Journal Article

Functional magnetic nanoparticles for facile viable but nonculturable bacteria separation and purification

Chunming Wang, Huirong Lin, Chengsong Ye

Journal Article

properties of a silver particle-coated and 1-dodecanethiol-modified superhydrophobic melamine sponge for oil/waterseparation

Journal Article