Membrane Papers

Highlights recently published papers on polymer, inorganic and mixed matrix membranes used in gas separation

[Journal of Membrane Science @J_Membrane_Sci]

1st Editor's Choice Article for the April issue from the group of Prof. Jianhua Yang at Dalian University.
Fabrication and characterization of polycrystalline MFI membranes on coarse macroporous supports for the separation of butane isomers

https://t.co/pfwoeA1FEl

Reproducible synthesis of polycrystalline zeolite membranes is both challenging and critical for their scale-up. In this work, the authors synthesized MFI zeolite membranes on low-cost, coarse macroporous Al₂O₃ supports using two different seeding strategies: nanosheet seeds alone, and a combination of nanosheet seeds and MFI crystals. The resulting membranes were systematically characterized and show good separation performance. This novel work may pave the way for zeolite membrane scaleup on low cost supports.

@TobiasWesselius
@Rong_SMTCLab
@jerrylinwoods

[Membrane Papers @MembranePapers]

Microporous polyimine membranes for efficient separation of liquid hydrocarbon mixtures | Science https://t.co/rxivzESQMf

[Membrane Papers @MembranePapers]

Tri-bore composite hollow fiber membranes consisting of nano CQDs and ... https://t.co/yPg9dUsDGk

[Nature Chemical Engineering @NatChemEng]

🚨A Research Highlight from Mo Qiao covers a @NatureWaterJnl Article on modified PIM-based membranes that enhance the selective sieving of Li+ over Mg2+ in electrodialysis processes. @QileiSong

Original paper (🔓): https://t.co/K0xnBZ3ErZ

Highlight ($): https://t.co/FZKr9mEXIY

[Dan Zhao @ZhaoGroupNUS]

#materials #MOFs #membranes Physical stability is as crucial as chemical stability in MOF membranes. See our recent findings on a new microscopic, vapor-flow-driven mechanical amorphization in MAF-5 membranes during pervaporation @pfizer @J_A_C_S https://t.co/SLsUwslAU1

[Journal of Membrane Science @J_Membrane_Sci]

1st Editor's Choice Article for the March issue from the group of Prof. Yang Lei at Lanzhou Jiaotong University.

Directional anchoring of cobalt metal sites in mixed matrix membranes via interfacial covalent grafting for synchronous separation of particulate matter and CO2

This paper presents the synthesis of cobalt-coordinated conjugated microporous polymers  within the active layers of solid-gas separation mixed matrix membranes for the simultaneous capture of particulate matter and CO₂. To address the common issue of phase incompatibility in mixed-matrix membrane, conjugated microporous polymers are grafted onto the surface of multi-walled carbon nanotubes, effectively reducing filler agglomeration and interfacial defects. The resulting membranes exhibit outstanding particulate capture efficiency and enhanced CO₂/N₂ selectivity, attributed to cobalt coordination and improved phase compatibility.

https://t.co/Z95YiREiSg

@TobiasWesselius

@Rong_SMTCLab
@jerrylinwoods

[Dan Zhao @ZhaoGroupNUS]

#ChemE #MOFs #sorption #separation We report the single-component adsorption and diffusion of CO₂, N₂, and H₂O in CALF-20, and those data have been applied to predict breakthrough results @ACSPublications https://t.co/xJVs5t1ykg

[COF_Papers @COF_papers]

High‐Efficiency Ion Transport in Ultrathin 3D Covalent Organic Framework Nanofluidics https://t.co/IVgZo0EesU

[Membrane Papers @MembranePapers]

Impact of Polymer Topology on Physical Aging of Thin Film Composite Membranes Based on PIM-1, cPIM-1, and Associated Blends | Macromolecules https://t.co/Q6aKnGd2b1

[Dan Zhao @ZhaoGroupNUS]

#COFs #membranes We demonstrate that a COF membrane with ~4.5 Å pores can achieve high C6 alkane isomer separation via OSRO, boosting RON of a 5-component C6 mixture from 67.7 to 92.8 through continuous filtration @J_A_C_S https://t.co/H26aKU3EUd

[SmithLabMIT @SmithLabMIT]

Check out our most recent publication in @J_Membrane_Sci in collaboration with @YanXiaLab: “Investigation of competitive sorption and plasticization of hyperaged CANAL ladder polymers for acid gas purification" https://t.co/szql8b0gKM

[Membrane Papers @MembranePapers]

Impact of Polymer Topology on Physical Aging of Thin Film Composite Membranes Based on PIM-1, cPIM-1, and Associated Blends | Macromolecules https://t.co/Q6aKnGd2b1

[Dan Zhao @ZhaoGroupNUS]

#MOFs #membranes #nanofiltration PCN-250 membranes obtained via secondary growth showed 97.2-99.2% OSN rejection, while tertiary growth ran 1600 h in PV with a separation factor of 591. Thickness matters! @pfizer @J_Membrane_Sci https://t.co/ZX4tNdkyHs

[Peter Budd @BuddProf]

How interfacial defects affect the performance of mixed matrix membranes @UoMChemEng @UoMChemistry in @J_Membrane_Sci https://t.co/G7aXDKcovn

[Peter Budd @BuddProf]

Review of thin film composite membranes based on PIM-1, in @J_Membrane_Sci https://t.co/DCfp4a5HAe

[Membrane Papers @MembranePapers]

Reaction Kinetic Modeling of the Synthesis of Polymers of Intrinsic Microporosity - Kandelhard - Advanced Functional Materials - Wiley Online Library https://t.co/q5dNpDWcNV

[Membrane Papers @MembranePapers]

Enhancing the CO2 Separation Performance of Mixed Matrix Membranes Based on Block Copolymer via Nonsolvent-Induced Microstructure Rearrangement | Industrial & Engineering Chemistry Research https://t.co/ukJ1mtijhx

[Journal of Membrane Science @J_Membrane_Sci]

2nd Editor's Choice Article for the December issue from the group of Prof. Gongping Liu at Nanjing Tech

Machine learning accelerates high throughput design and screening of MOF mixed-matrix membranes towards He separation

https://t.co/VisbmPhoIo

This study employs machine learning and high-throughput simulations to design and screen MOF MMMs for helium separation, offering data-driven insights for novel MMM development. The authors constructed a dataset of half a million MOF MMMs for He/CH4 separation and developed four ML models to predict He and He/CH4 permeance and separation factors.  This innovative strategy provides a theoretical foundation for sustainable helium separation membranes.

@LBandounas
@Rong_SMTCLab
@jerrylinwoods

[Membrane Papers @MembranePapers]

Atomically Fine-Tuning Organic–Inorganic Carbon Molecular Sieve Membranes for Hydrogen Production | ACS Nano https://t.co/7F12eRzNvq

[Journal of Membrane Science @J_Membrane_Sci]

3rd Editor's Choice Article for the November issue from the group of Prof. William (Bill) Koros at Georgia Tech.

Leveraging molecular scale free volume generation to improve performance of carbon molecular sieve membranes.

https://t.co/kK4bTWyPap

This paper reports on the fine-tuning of carbon molecular sieve (CMS) structures to enhance the performance of CMS membranes for a wide range of gas mixtures. The study demonstrates the targeted modification of a polyimide CMS precursor by substituting aliphatic methyl groups on the polymer backbone with free-volume-generating trifluoromethyl groups. This modification results in significant improvements in gas separation performance. The findings highlight the incorporation of free-volume-generating groups into polymeric precursors as a powerful strategy for developing advanced CMS membranes.

@LBandounas
@Rong_SMTCLab
@jerrylinwoods