Jul 15, 2019 · X-ray diffraction (XRD, Rigaku) was used with Cu-Kα radiation (λ = 1.540 Å) at 60 kV and a tube current of 50 mA to determine the phases over the range of 10–50° at a scan rate of 3°/s.

May 1, 2020 · To achieve high separation performance, three partially NH 2 -, OH- and CH 3 OH- functionalized mixed-linker-ZIF-7 were successfully synthesized, and incorporated into polyether-block-amide (Pebax® 2533) polymer to form mixed-matrix membranes (MMMs).

Nov 1, 2021 · We investigated the use of microporous carbon nanospheres (CNs) as fillers to prepare mixed matrix membranes (MMMs) for permeable and selective CO 2 separation. CNs with a uniform size of 650 nm and unique amorphous structure were characterized by SEM and XRD. The N content of CNs with different carbonization temperatures was determined by XPS.

Jul 13, 2021 · The prepd. membranes were characterized by scanning electron microscope (SEM), Fourier-transform IR spectroscopy (FTIR), and X-ray diffraction (XRD) anal. CO2/N2 permeation tests were undertaken to investigate the solvent effect …

Pebax® Rnew® 30R51 (Pebax Rnew) is a type of bio-based polymer consisting of polyether segments and polyamide segments, wherein the polyamide segments are obtained from renewable sources. This...

The performance of CO2/CH4 separation of (Pebax) mixed matrix composite hollow fiber membranes, incorporated with ZeY and aminosilane-modified zeolite Y (Mo-ZeY), is investigated.

The XRD pattern of the pure Pebax1657 membrane showed that the original Pebax1657 was a semicrystalline polymer with three characteristic diffraction peaks at 12°, 21°, and 24°. ...

Pebax® Rnew® 30R51 (Pebax Rnew) is a type of bio-based polymer consisting of polyether segments and polyamide segments, wherein the polyamide segments are obtained from renewable sources. This study focuses on synthesizing and characterizing Pebax Rnew membranes for gas separation applications.

The crystalline phase of MAF-7 powders, pure membrane, and Pebax 1657/MAF-7 mixed matrix membranes were confirmed by X-ray diffraction (XRD, Ultima IV, Rigaku, Tokyo, Japan) with Cu-Kα (λ = 1.54 Å) radiation in the 2θ range between 5° and 45°.

May 29, 2014 · Zeolite 4A loaded Pebax-1657 mixed matrix membranes were synthesized. Performance of membranes was studied with pure CO 2, CH 4, O 2 and N 2 gases. Pebax/4A membranes showed better gas permeation properties to those of Pebax-1657. Increasing the zeolite loading enhanced the selectivity CO2 /CH 4, CO 2 /N 2 and O 2 /N 2.