2023年8月15日 · We synthesized several ion-exchange resins and found that the cross-linked cation-exchange resin, CR-3, showed excellent selectivity and adsorption capacity for LF from standard LF solutions as well as sweet whey and acidic whey samples.

2022年7月27日 · Scanning electron microscopy (SEM) images showed a relatively uniform resin particle distribution within the polymer matrix. The mean roughness of the cation exchange membrane (CEM) and anion exchange membrane (AEM) surfaces increased from 42.12 to 317.25 and 68.56 to 295.95 nm, respectively, when resin loading was increased from 1 …

2023年11月1日 · This study presented an innovative process combining ion exchange resin and selective electrodialysis for efficient separation and recovery of Y 3+ and hydrochloric acid from the single rare earth element precipitation (REOP) mother liquor. The resin process was systematically evaluated for its ability to reduce the membrane fouling of ...

2020年2月1日 · Using the SEM method, it has been found that with an increase in resin content from 45 to 70 wt%, fraction of the ion-exchanger on the surface of swollen membranes increases 1.8 times, and the distance between them is halved. At the cross-section of membranes, the growth of fraction of ion-exchange regions is 46%.

A primary amine-functionalized polymeric ion-exchange resin (Lewatit VP OC 1065, Lanxess) was evaluated for use in CO 2 capture applications. The polymeric resin was characterized by SEM, DRIFTS-IR, N 2 adsorption isotherms, and packed bed sorption measurements to determine some of the characteristic properties of the resin.

SEM, EDX, FT-IR, BET, XRD, and XPS analyses were used to characterize the SMA resin. Parameters such as Pb²⁺ concentration, pH, temperature, and time are optimized. The obtained results show t...

2020年10月3日 · In this work, ion-exchange resin beads were used as supports for magnetite (Fe 3 O 4) synthesis to produce heavy metal adsorbents which can be easily separated by magnetic field. The first step of the magnetite preparation was the replacement of hydrogen ions with Fe 2+ and Fe 3+ ions on the sulfonic acid groups of the resin.

2024年4月12日 · Spent ion exchange resin (SIER) is a novel construction aggregate under investigation. SIER contributes to enhancing the thermophysical properties of gypsum-based composites. Unfiring and firing stages of the composite materials were studied. Detailed analysis of the mineralogical composition and microstructure of SIER was conducted.

2021年6月30日 · Here, correlative light and electron microscopy (CLEM)-energy-dispersive X-ray spectroscopy and the NanoSuit method (CENM) was applied to perform a definitive identification of ion-exchange resins. CENM could detect sulfur in …

2023年2月8日 · Ion-exchange membranes (IEMs) are semipermeable membranes that have fixed charges in the membrane matrix and are used to transport certain dissolved ions while blocking other ions in a liquid [14].