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Preparation and characterization of novel carbon molecular sieve membrane/PSSF composite by pyrolysis

Ying Yan, Peng Huang, Huiping Zhang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4, Pages 772-783 doi: 10.1007/s11705-019-1827-y

Abstract: Carbon molecular sieve membrane (CMSM)/paper-like stainless steel fibers (PSSF) has been manufacturedBesides, the degree of graphitization in carbon matrix increased with rising pyrolysis temperature.adsorption experiments on different structured fixed bed that was padded by CMSM/PSSF and granular activated carbon

Keywords： carbon molecular sieve membrane stainless steel fibers pyrolysis structured fixed bed toluene

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Thermal decomposition of poly(ethylene terephthalate)/mesoporous molecular sieve composites

RUN Mingtao, ZHANG Dayu, WU Sizhu, WU Gang

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1, Pages 50-54 doi: 10.1007/s11705-007-0010-z

Abstract: The nonisothermal and isothermal degradation processes of poly (ethylene terephthalate)/mesoporous molecularsieve (PET/MMS) composites synthesized by in-situ polymerization were studied by using thermogravimetric

Keywords： polymerization isothermal degradation conversion nonisothermal degradation activation

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Catalytic oxidation of carbon monoxide, toluene, and ethyl acetate over the

Zhidan Fu, Lisha Liu, Yong Song, Qing Ye, Shuiyuan Cheng, Tianfang Kang, Hongxing Dai

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2, Pages 185-196 doi: 10.1007/s11705-017-1631-5

Abstract: The Pd catalyst supported on cryptomelane-type manganese oxide octahedral molecular sieve (OMS-2) wereThe effect of Pd loading on the catalytic oxidation of carbon monoxide, toluene, and ethyl acetate over

Keywords： cryptomelane-type manganese oxide octahedral molecular sieve oxygen mobility reducibility carbon monoxide

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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: membranes with tunable apertures and functional groups have shown substantial potential for use in molecularUsing molecular dynamics simulations, for the first time, we reveal two-way selectivity in ethanol/waterwater molecules are preferred for hydroxylated graphene membranes because of the synergistic effects of molecularA simulation of the operando condition shows that the PG membrane with an aperture size of 3.8 Å achieves

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

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Tetra-detector size exclusion chromatography characterization of molecular and solution properties ofsoluble microbial polysaccharides from an anaerobic membrane bioreactor

Qingbin Guo,Sheng Chang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 2, doi: 10.1007/s11783-017-0922-x

Abstract: Tetra-detector HPSEC was evaluated for the SMP characterization Molecular weight and intrinsic viscosityproperties of soluble microbial products (SMP) is critical for understanding the membrane filtrationand fouling mechanisms in anaerobic and aerobic membrane bioreactors (AnMBR & MBR).extrapolated how to analyze the resistance characteristics of the concentration polarization layers formed in membranefiltration based on the molecular properties determined by the tetra-detector HPSEC analysis.

Keywords： Soluble microbial product Extracellular polymeric substance Membrane bioreactor Membrane fouling Molecular

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Ti incorporation in MCM-41 mesoporous molecular sieves using hydrothermal synthesis

Shengping WANG, Changqing MA, Yun SHI, Xinbin MA

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 1, Pages 95-103 doi: 10.1007/s11705-014-1405-2

Abstract: Titanium-containing mesoporous materials (Ti-MCM-41) were obtained by hydrothermal synthesis. Such materials are active catalysts for the transesterification of dimethyl oxalate and phenol to produce diphenyl oxalate. To understand the role of the Ti in the catalytic process, Ti-MCM-41 samples with different Si/Ti ratios (from 5 to 100) were prepared and the samples were analyzed by Fourier transform infrared spectroscopy, UV-visible spectroscopy, and ammonia temperature programmed desorption. It was concluded that the Ti is incorporated into the framework of the MCM-41 and formed weak Lewis acid sites. In addition, the number of Ti(IV) sites increased as the amount of titanium increased. X-ray powder diffraction, N adsorption-desorption and transmission electron microscopy results showed that the Ti-MCM-41 samples have a hexagonal arrangement of mono-dimensional pores. A large number of Ti(IV) sites coupled with the mesoporous structure and large pore diameters are favorable for the transesterification catalytic properties of Ti-MCM-41.

Keywords： Ti-MCM-41 mesoporous molecular sieve acid sites transesterification hydrothermal synthesis

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

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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Integration of molecular dynamic simulation and free volume theory for modeling membrane VOC/gas separation

Bo Chen, Yan Dai, Xuehua Ruan, Yuan Xi, Gaohong He

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 2, Pages 296-305 doi: 10.1007/s11705-018-1701-3

Abstract: Gas membrane separation process is highly unpredictable due to interacting non-ideal factors, such asAlthough molecular dynamic (MD) simulation can mimic those complex effects, it cannot precisely predictThis work proposes a method for modeling a membrane separation process for volatile organic compoundsA lab-scale hollow fiber membrane module was prepared for the model validation and evaluation.The proposed method provides an efficient tool for process engineering to simulate the membrane recovery

Keywords： membrane vapor separation membrane process modeling process engineering free volume theory volatile organic

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The use of carbon nanomaterials in membrane distillation membranes: a review

Sebastian Leaper, Ahmed Abdel-Karim, Patricia Gorgojo

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4, Pages 755-774 doi: 10.1007/s11705-020-1993-y

Abstract: Membrane distillation (MD) is a thermal-based separation technique with the potential to treat a wideOf particular interest is the class of carbon-based nanomaterials which includes graphene and carbonTheir use in MD has resulted in improved membrane performance characteristics like increased permeabilityWe then give an account of the various uses of carbon nanomaterials for MD applications, focussing onpolymeric membrane systems.

Keywords： carbon nanomaterials graphene membrane distillation desalination carbon nanotubes

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Nonpolar cross-stacked super-aligned carbon nanotube membrane for efficient wastewater treatment

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 3, doi: 10.1007/s11783-023-1630-3

Abstract:

● A novel nonpolar super-aligned carbon nanotube (SACNT) membrane

Keywords： Membrane fouling Wastewater Membrane separation Antifouling Aligned carbon nanotube

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Uncovering the effect of poly(ethylene-co-vinyl alcohol) molecular weight and vinyl alcohol content onmorphology, antifouling, and permeation properties of polysulfone ultrafiltration membrane: thermodynamic

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

Abstract: and ultrasonic separation kinetic measurements were also carried out to develop an ultrafiltration membraneThe extracted membrane properties and filtration capabilities were systematically compared to the proposedresults, valuable insights into the selection of hydrophilic copolymers were provided to tailor the membrane

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

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Molecular level understanding of CO₂ capture in ionic liquid/polyimide composite membrane

Linlin You, Yandong Guo, Yanjing He, Feng Huo, Shaojuan Zeng, Chunshan Li, Xiangping Zhang, Xiaochun Zhang

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2, Pages 141-151 doi: 10.1007/s11705-020-2009-7

Abstract: 2,3,5,6-tetramethyl-1,4-phenylene-diamine, at different IL concentrations were investigated by all-atom molecularIL concentrations up to 35 wt-% due to the decrease of the fractional free volume of the composite membrane

Keywords： carbon dioxide ionic liquid 6FDA-TeMPD composite membrane molecular dynamics simulation

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Effects of a dynamic membrane formed with polyethylene glycol on the ultrafiltration of natural organic

Boksoon KWON, Noeon PARK, Jaeweon CHO,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 2, Pages 172-182 doi: 10.1007/s11783-010-0002-y

Abstract: The formation of a dynamic membrane (DM) was investigated using polyethylene glycol (PEG) (molecularon ultrafiltration, various transport experiments were conducted, and the analyses of the NOM in the membraneperformed using high performance size exclusion chromatography, and the pore size distribution ( PSD) and molecularcan be summarized as follows: (1) PEG interferes with NOM transmission through the ultrafiltration membranelow removal of NOM by the DM is affected by external factors, such as pressure increases during UF membrane

Keywords： dynamic membrane natural organic matters ultrafiltration membrane performance effective PSD effectivemolecular weight cutoff

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Preparation of adsorptive nanoporous membrane using powder activated carbon: Isotherm and thermodynamic

Majid Peyravi

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4, Pages 673-687 doi: 10.1007/s11705-019-1800-9

Abstract: Adsorptive polyethesulfone (PES) membranes were prepared by intercalation of powder activated carbonIntercalation of PAC within the PES scaffold changed the porosity and mean pore size of the aminated membraneA similar increment was obtained for the membrane flux, which was due to the synergistic effect of the

Keywords： amine functionality nanoporous membrane adsorption isotherm thermodynamic parameters landfill leachate

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Preparation of lithium ion-sieve and utilizing in recovery of lithium from seawater

Lu WANG, Changgong MENG, Wei MA

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1, Pages 65-67 doi: 10.1007/s11705-009-0105-9

Abstract: Among the adsorbents for lithium, the ion-sieve is a kind of special absorbent which has high selectivityIn this study, the SMO ion-sieve was prepared by a coprecipitation method.Recovery of Li from seawater were studied in batch experiments using prepared ion-sieve, and the effect

Keywords： lithium ion-sieve seawater spinel manganese oxide

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Title Author Date Type Operation

Preparation and characterization of novel carbon molecular sieve membrane/PSSF composite by pyrolysis

Ying Yan, Peng Huang, Huiping Zhang

Journal Article

Thermal decomposition of poly(ethylene terephthalate)/mesoporous molecular sieve composites

RUN Mingtao, ZHANG Dayu, WU Sizhu, WU Gang

Journal Article

Catalytic oxidation of carbon monoxide, toluene, and ethyl acetate over the

Zhidan Fu, Lisha Liu, Yong Song, Qing Ye, Shuiyuan Cheng, Tianfang Kang, Hongxing Dai

Journal Article

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

Journal Article

Tetra-detector size exclusion chromatography characterization of molecular and solution properties ofsoluble microbial polysaccharides from an anaerobic membrane bioreactor

Qingbin Guo,Sheng Chang

Journal Article

Ti incorporation in MCM-41 mesoporous molecular sieves using hydrothermal synthesis

Shengping WANG, Changqing MA, Yun SHI, Xinbin MA

Journal Article

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

Journal Article

Integration of molecular dynamic simulation and free volume theory for modeling membrane VOC/gas separation

Bo Chen, Yan Dai, Xuehua Ruan, Yuan Xi, Gaohong He

Journal Article

The use of carbon nanomaterials in membrane distillation membranes: a review

Sebastian Leaper, Ahmed Abdel-Karim, Patricia Gorgojo

Journal Article

Nonpolar cross-stacked super-aligned carbon nanotube membrane for efficient wastewater treatment

Journal Article

Molecular level understanding of CO₂ capture in ionic liquid/polyimide composite membrane

Linlin You, Yandong Guo, Yanjing He, Feng Huo, Shaojuan Zeng, Chunshan Li, Xiangping Zhang, Xiaochun Zhang

Journal Article

Effects of a dynamic membrane formed with polyethylene glycol on the ultrafiltration of natural organic

Boksoon KWON, Noeon PARK, Jaeweon CHO,

Journal Article

Preparation of adsorptive nanoporous membrane using powder activated carbon: Isotherm and thermodynamic

Majid Peyravi

Journal Article

Preparation of lithium ion-sieve and utilizing in recovery of lithium from seawater

Lu WANG, Changgong MENG, Wei MA

Journal Article

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