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Abstract Abstract: Membrane deionization, an alternative desalination process, has existed for over 15 years and attracted a lot of research interest since then. In this research, cation exchange membrane assembly and analysis were introduced, based on the crosslinking of sulfosuccinic acid and glutaric acid with polyvinyl alcohol. The PVA/SSA/GA composite had the highest water adsorption and charging efficiencies that could be used for CDI application, according to PVA/SSA/GA. The salt absorption capacity of 19. 06 mg/u00b7g u22121 with stable results was found to be promising, and it was promising.
Source link: https://doi.org/10.1515/gps-2022-0056
An industrial case study of cation and anion exchangers in a water treatment plant was conducted to determine the effectiveness of cation and anion exchangers, which culminated in groundbreaking experiments of pH, conductivity, free mineral acid, and several dissolved solids for a 700-gallons capacity. The operating time of the water treatment train was significantly increased by virtue of a proper capacity utilization of a secondary anion exchanger. In the paper, the poor capacity utilization of secondary anion resin as a result of early silica slippage is discussed.
Source link: https://doi.org/10.2478/v10026-012-0068-3
Background: Mixed-mode chromatography is gaining traction and robustness in downstream process purification by providing the selectivity and tenacity unmatched by conventional singlemode chromatographic techniques. Methods and Methods: We elucidate the separation principles of hydrophobic cation exchange mixed-mode chromatography and its difference from traditional high cation exchangers by using Nuvia cPrime as an example. We've developed a Nuvia cPrime-based polish purification step for the removal of a significant process contaminant that has an isoelectric point similar to that of the target monoclonal IgM molecule.
Source link: https://doi.org/10.2174/1389203718666171017130506
At pH 1. 8, the histone extracted from the nucleoprotein of calf thymus and chicken erythrocyte nuclei was more stable than that obtained at less than pH 1. 5. About 75% of the calf thymus histone was eluted in four peaks, one of which was shown to be identical with the lysine-rich component, while the other three fell with barium acetate containing barium acetate from barium IRC-50.
Source link: https://doi.org/10.1139/y59-092
Average degree substitution of CEF equals about 0. 19 to maintain the fiber morphology. The CEF demonstrated high adsorption for methylene blue, adsorbing 82% of equilibrium uptake within 5 min. In addition, CEFs filter material can be regenerated by a simple process. This report reveals that green natural fiber fibers are promising for the economical and effective purification of dye-containing wastewater.
Source link: https://doi.org/10.21203/rs.3.rs-190532/v1
U22121 and 0. 522 mmol g u22121, respectively, in the ranges 1. 817 and 0. 522 mmol g u20130. 201 mmol g u20130. 388 mmol g u22121 and u22121, respectively. Salt modification effects on bentonite's gas adsorption characteristics are discussed.
Source link: https://doi.org/10.1180/claymin.2017.052.1.04
[Cs+] of 1:100 (Cs+) and selective Cs+ distribution coefficients of 574 g. u22121 from solutions with molar ratios of 576 - 658 g'u22121 are Cs+ conversion coefficients of 574 u00b1 4 meq 100 gu22121 from solutions with molar ratios of 4600, 658 [Cs+] from solutions with molar ratios of 1100 a [Cs] [Cs+] The uptakes of Pb2+, Cd2+, and Cs+ were found to be 1. 78 u00b1 0. 06 mmol gu22121, respectively, in a batch sorption experiment at 20 b0C. Pb2+, Cd2+, and Cs+ removal were outlined by the pseudo-second-order rate model, which provided respective rate constants of 0. 10, 0. 027, and 1. 635 g, respectively, with corresponding correlation coefficients of 0. 997, 0. 996, and 0. 999. The metal ion sorption properties of the tobermorite-rich product contrasted favorably with those of other waste-derived tobermorites reported in the literature.
Source link: https://doi.org/10.3390/ceramics5030024
By conventional ion exchange reaction, rare-earth cation is integrated into the interlayer spaces between the silicate layers of synthetic fluorine mica, Na 0. 665 Mg 2. 68 O 10. 02 F 1. 98. The normalized absorption intensity gradually decreases as the calcination temperature rises, according to Nd L III -edge XANES spectra, suggesting that the bonding character of rare-earth cations and silicate lattices changes from ionic to covalent as the calcination temperature increases.
Source link: https://doi.org/10.1107/s0909049501000188
Here, we use high-resolution X-ray diffraction to show the effect of a cation exchange on the pore geometry of LTL-type zeolites. The nature of the exchanging cation has been shown to influence the free access diameter, mass, and water content of the 12-ring channel systems. As such, a cation exchange can be used to modify the molecular sieving and adsorption characteristics of LTL-type zeolites.
Source link: https://doi.org/10.3390/appliedchem2030011
The mixed cation colloidal Cs 1u2212X FA X PbI 3 perovskite quantum dots obtained by a cation exchange between CsPbI 3 and FAPbI 3 PQDs have been shown to have improved photovoltaic results, according to enhanced photovoltaic performance. For the first time, PQD weight ratio, PQD concentration, and host solvent polarity during the cation exchange is fully investigated. In addition, we custom fabricate a PQD solar cell unit with these obtained mixed cation Cs 0. 5 FA 0. 5 PQDs, which resulted in an increased power conversion rate of 14. 8 percent.
Source link: https://doi.org/10.1063/5.0100258
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