outstanding separation selectivity

outstanding separation selectivity

The selectivity of a polydimethylsiloxane-based triblock ...

Moreover, it exhibits outstanding separation performance for some challenging isomers of aromatic amines and showed distinct advantages over PDMS, and commercial HP-35 and PEG-20M columns. This work demonstrates the great potential of triblock copolymers as novel gas chromatographic stationary phases in the field of chromatographic analysis.

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[email protected] core-shell stationary phase: Preparation

2021-1-15  Mixed-mode stationary phases have been proved with the merits of remarkably high loading capacity, high separation efficiency and outstanding separation selectivity. Recently, although MOFs-based stationary phase materials have been reported with multiple retention mechanisms, MOFs-based mixed-mode stationary phase materials are rarely reported.

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CO2 -Philic Separation Membrane: Deep Eutectic Solvent ...

2019-12-6  By tuning the molar ratio of ChCl/EG and thickness of the membrane, the resultant membrane exhibits outstanding separation performance for CO2 with excellent selectivity over other light gases, good long-term durability, and thermal stability. This makes it a

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High proton selectivity membrane based on the keto

The keto-type COFs had been demonstrated the outstanding stability in the strong-acid solutions [, , ]. The high selectivity of TpTG Cl /CPAN was maintained after 10 cycles during DD process due to the keto-type construction. Thus, the artificial nanopore based on the cationic COF marked a major advance to compete with the traditional AEM and ...

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Membrane Separation in Organic Liquid: Technologies ...

2019-11-6  The membranes constructed with these novel materials show outstanding separation performance in regard to both high selectivity and solvent permeability, greatly pushing forward utilization of membrane technology in organic media.

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Carbon membranes for CO2 removal: Status and

2020-12-1  The outstanding separation performance coupled with excellent mechanical and chemical stabilities makes carbon membranes-based separation process as an energy-efficient and environmentally friendly technology for CO 2 removal. Download : Download high-res image (160KB) Download : Download full-size image

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Research on CO2-N2O separation using flexible metal ...

2020-11-15  N 2 O and CO 2 are two linear molecules, which have almost the same molecular size and similar physical properties (polarizability and quadrupole moment). Therefore, the separation of CO 2 and N 2 O is extremely challenging. Flexible metal organic frameworks exhibit a gate-opening phenomenon for one type of gas molecule, but not for another, thus enabling excellent selectivity for twin-like ...

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Engineering Leaf-Like UiO-66-SO3H Membranes for

2020-2-17  The outstanding cation separation performance validates the importance of introducing sulfonic acid groups in MOF-CPMs. Introduction Metal–organic frameworks (MOFs) are famous potential candidates in membrane-integrated separation processes due to their angstrom-sized pores [ 1 , 2 , 3 ].

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Separation of highly unsaturated fatty acid methyl esters ...

2016-6-17  The results showed that the mixture of 1-ethyl-3-methylimidazolium dicyanamide ([EMIm][N(CN) 2]) and N,N-dimethylformamide (DMF) demonstrated excellent separation selectivity, reaching up to an outstanding value of 11.7, when the

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Ultra-selective molecular-sieving gas separation

2021-10-22  An impressive O 2 /N 2 selectivity over 11 is achieved in this work, comparable with the most-selective membrane materials for O 2 /N 2 separation summarized by Robeson 32.

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Separation of highly unsaturated fatty acid methyl esters ...

2016-6-17  The results showed that the mixture of 1-ethyl-3-methylimidazolium dicyanamide ([EMIm][N(CN) 2]) and N,N-dimethylformamide (DMF) demonstrated excellent separation selectivity, reaching up to an outstanding value of 11.7, when the mole ratio of [EMIm][N(CN) 2] to DMF was 1 : 9, at least twice the value (5.6) using DMF as the extractant. In ...

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High-flux polyamide membrane with improved chlorine ...

Guanazole was firstly used as diamine monomer to fabricate novel TFC membrane by interfacial polymerization. • The membranes showed optimum separation selectivity for dye and NaCl with higher pure water flux (95.1 L m −2 h −1 bar −1).. The membranes maintained outstanding chlorine resistance after 120 h immerse in NaClO solution.

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Functionalizing graphene oxide framework membranes

2019-8-7  Hydrophilic pervaporation (PV) membranes with ultrahigh throughput and outstanding separation ability are highly beneficial for efficient separation of aqueous mixtures. However, it is still challenging to obtain high selectivity without compromising

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MIL-101(Cr) Microporous Nanocrystals Intercalating ...

The MIL-101(Cr)/GO membrane with optimal structures exhibited outstanding and stable mixed-gas separation performance with H 2 permeance of 67.5 GPU and H 2 /CO 2 selectivity of 30.3 during the 120-h continuous test, demonstrating its potential in H 2 purification application.

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CO2‐Philic Separation Membrane: Deep Eutectic Solvent ...

2019-10-23  By tuning the molar ratio of ChCl/EG and thickness of the membrane, the resultant membrane exhibits outstanding separation performance for CO 2 with excellent selectivity over other light gases, good long-term durability, and thermal stability. This makes it a promising membrane for selective CO 2 separation.

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High-efficiency CO2 separation using hybrid LDH-polymer ...

2021-5-24  The separation of CO 2 is a crucial process for the purification of natural gas/syngas, flue gas recycling from thermal cracking and greenhouse gas

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Tuning the sorption properties of amidoxime

2021-10-31  Selectivity coefficient, SC La/Dy, may reach up to 40–50. Speciation diagrams show that the preferential formation of Dy-EDTA complexes limits Dy(III) sorption while La(III) remains predominant and highly sorbed (reduced effect of Dy-competition). Optimum conditions for Ln(III) separation can be predicted by the calculation of speciation ...

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Precise Sub-Angstrom Ion Separation Using Conjugated ...

Polymer membranes typically possess a broad pore-size distribution that leads to much lower selectivity in ion separation when compared to membranes made of crystalline porous materials; however, they are highly desirable because of their easy processability and low cost. Herein, we demonstrate the fabrication of ion-sieving membranes based on a polycarbazole-type conjugated microporous ...

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Front. Chem. Sci. Eng.

Such a simplified polyelectrolyte deposition procedure results in membranes having outstanding separation performance with permeating flux of 14.2 ± 1.5 L∙m –2 ∙h –1 ∙bar –1 and Na 2 SO 4 rejection of 97.1% ± 0.8% under a low applied pressure of 1 bar.

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Superdex 200 Increase 10/300 GL,分子筛,凝胶过滤,预装柱

2021-11-23  Column Recommended sample volume Recommended operating flow Efficiency (N/m) Applications Superdex 200 Increase 3.2/300 4 to 50 µL 0.075 mL/min >48,000 High-resolution analysis and purification of small sample volumes, especially when sample amount is limited and low buffer consumption is important. Superdex 200 Increase 10/300 GL 25 to 500 ...

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Separation of highly unsaturated fatty acid methyl esters ...

2016-6-17  The results showed that the mixture of 1-ethyl-3-methylimidazolium dicyanamide ([EMIm][N(CN) 2]) and N,N-dimethylformamide (DMF) demonstrated excellent separation selectivity, reaching up to an outstanding value of 11.7, when the

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MIL-101(Cr) Microporous Nanocrystals Intercalating ...

The MIL-101(Cr)/GO membrane with optimal structures exhibited outstanding and stable mixed-gas separation performance with H 2 permeance of 67.5 GPU and H 2 /CO 2 selectivity of 30.3 during the 120-h continuous test, demonstrating its potential in H 2 purification application.

Read More
CO2‐Philic Separation Membrane: Deep Eutectic Solvent ...

2019-10-23  By tuning the molar ratio of ChCl/EG and thickness of the membrane, the resultant membrane exhibits outstanding separation performance for CO 2 with excellent selectivity over other light gases, good long-term durability, and thermal stability. This makes it a promising membrane for selective CO 2 separation.

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Robust Bimetallic Ultramicroporous Metal Organic

2020-1-14  selectivity and simulated breakthrough further showed that NKMOF-1-Ni had an outstanding separation performance of Xe/Kr, Xe/Ar, and Xe/N 2. This study provides important guidance for future research to synthesize ideal sorbents to separate noble gases. INTRODUCTION Noble gases, including helium (He), neon (Ne), argon (Ar),

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Nanofiltration membrane for bio‐separation: Process ...

2021-3-20  To achieve high color removal efficiency, Guo et al. systematically evaluated eleven ultrafiltration (UF) and NF membranes for molasses decolorization, and concluded that the hydrophilic and negatively charged polyamide (PA) NF membrane of 300–500 Da exhibited desirable separation selectivity of pigments/sucrose, outstanding permeate flux and ...

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High-efficiency CO2 separation using hybrid LDH-polymer ...

2021-5-24  The separation of CO 2 is a crucial process for the purification of natural gas/syngas, flue gas recycling from thermal cracking and greenhouse gas

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Precise Sub-Angstrom Ion Separation Using Conjugated ...

Polymer membranes typically possess a broad pore-size distribution that leads to much lower selectivity in ion separation when compared to membranes made of crystalline porous materials; however, they are highly desirable because of their easy processability and low cost. Herein, we demonstrate the fabrication of ion-sieving membranes based on a polycarbazole-type conjugated microporous ...

Read More
Front. Chem. Sci. Eng.

Such a simplified polyelectrolyte deposition procedure results in membranes having outstanding separation performance with permeating flux of 14.2 ± 1.5 L∙m –2 ∙h –1 ∙bar –1 and Na 2 SO 4 rejection of 97.1% ± 0.8% under a low applied pressure of 1 bar.

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Facile separation of enantiomers via covalent organic ...

2021-10-6  Covalent organic frameworks (COFs), a type of crystalline polymers, have attracted increasing interest because of their controllability of geometry and functionality. Featuring infinitely extended networks and tremendous interaction sites, COFs emerge as a potential platform for separation science. Here, a novel chiral COF (β-CD COFBPDA) constructed by the imine condensation of 4,4 ...

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Superdex 200 Increase 10/300 GL,分子筛,凝胶过滤,预装柱

2021-11-23  Column Recommended sample volume Recommended operating flow Efficiency (N/m) Applications Superdex 200 Increase 3.2/300 4 to 50 µL 0.075 mL/min >48,000 High-resolution analysis and purification of small sample volumes, especially

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