Li3[AlP2O7F(OH)](H2O)0.5 and A[Al2(PO4)2F(H2O)](A = K, Rb): Counter Cation Templates Derived Three Polar Alkaline Metal Fluoroaluminophosphates DOI
Yucheng Hao, Changlin Chen, Cheng Hou

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(52), P. 24885 - 24895

Published: Dec. 17, 2024

Three novel alkali metal fluoroaluminophosphates, Li3[AlP2O7F(OH)](H2O)0.5 and A[Al2(PO4)2F(H2O)](A = K, Rb), were designed synthesized by using low-temperature flux methods. They crystallized in polar space groups P4 P212121, respectively. features a unique two-dimensional layered structure of fluoroaluminophosphate [AlP2O7F(OH)]3–n, composed alternately connected AlFO5 octahedra PO4 tetrahedra. In contrast, with counter cations from Li+ to K+/Rb+, two new crystals Rb) have been obtained. possess distinct three-dimensional anionic framework, [Al2(PO4)2F]−n, consisting corner-sharing AlO5 triangular bipyramids, octahedra, tetrahedra, revealing intersecting open tunnels along the [010], [001], [111] directions. Notably, both K[Al2(PO4)2F(H2O)] exhibit moderate second harmonic generation effects. Besides, porous material exhibited remarkable ionic exchange properties Cs+, implying its potential utility remediation radioactive waste offering promising solution for managing nuclear contaminants. This research reports on their syntheses, topological structures, elemental analysis, thermal stability, IR Raman spectroscopy, UV–Vis diffuse reflectance ion property, nonlinear optical characteristics.

Language: Английский

Strategies for Strontium Recovery/Elimination from Various Sources DOI Open Access
José Ignacio Robla, Lorena Alcaraz, Francisco José Alguacil

et al.

Processes, Journal Year: 2025, Volume and Issue: 13(3), P. 807 - 807

Published: March 10, 2025

Not having the same grade of popularity as other metals like rare earth elements, gold, copper, etc., strontium is a chemical element with wide uses in daily life, which why it appears EU 2023 list Critical Raw Materials. Among sources (with celestine serving raw material) used to recover element, recycling some Sr-bearing secondary wastes under consideration, and also worth mentioning interest removal from radioactive effluents. To reach these goals, several technological alternatives are being proposed, most widely adsorption or one its isotopes on solid materials. The present work reviews recent advances (for 2024) utilization diverse technologies, including leaching, adsorption, liquid–liquid extraction, recovery/elimination Sr(II) common 90Sr 85Sr radionuclides different liquid wastes. While membrane technologies useful for treating Sr-diluted solutions (in mg/L order), extraction more suitable treatment Sr-concentrated g/L order).

Language: Английский

Citations

1
Insights into the Structural Transformation of Amorphous ZrP, α-ZrP, and γ-ZrP: Sr2+ Sorption Behavior and Mechanism DOI
Xiaohan Wang, Yulai Zhang, Risto Koivula

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 28, 2025

This study investigates the synthesis and Sr2+ sorption properties of three different crystal types zirconium phosphate (ZrP)─amorphous ZrP (am-ZrP), α-ZrP, γ-ZrP─prepared via a one-pot reflux method. The materials were characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, thermogravimetry (TG), solid-state 31P magic angle spinning nuclear magnetic resonance (NMR) sodium hydroxide titration. Sorption experiments revealed that uptake all ZrPs increased with pH. isotherms evaluated across range concentrations, maximum capacities at pH 9 2.48 mmol g-1 for am-ZrP, 2.71 2.04 γ-ZrP. kinetics influence competing ions on also examined. Notably, demonstrated excellent reusability in sorption-desorption cycles. Finally, structural transformation mechanism elucidated through NMR, XPS, FTIR TEM analyses.

Language: Английский

Citations

0
Facile construction novel functionalized hyper-crosslinked porous crown-polymers for adsorbing iodine and strontium DOI

Xuanbo Liu,

Chunfeng Wang, Junan Zhang

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 133445 - 133445

Published: May 1, 2025

Language: Английский

Citations

0
Li3[AlP2O7F(OH)](H2O)0.5 and A[Al2(PO4)2F(H2O)](A = K, Rb): Counter Cation Templates Derived Three Polar Alkaline Metal Fluoroaluminophosphates DOI
Yucheng Hao, Changlin Chen, Cheng Hou

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(52), P. 24885 - 24895

Published: Dec. 17, 2024

Three novel alkali metal fluoroaluminophosphates, Li3[AlP2O7F(OH)](H2O)0.5 and A[Al2(PO4)2F(H2O)](A = K, Rb), were designed synthesized by using low-temperature flux methods. They crystallized in polar space groups P4 P212121, respectively. features a unique two-dimensional layered structure of fluoroaluminophosphate [AlP2O7F(OH)]3–n, composed alternately connected AlFO5 octahedra PO4 tetrahedra. In contrast, with counter cations from Li+ to K+/Rb+, two new crystals Rb) have been obtained. possess distinct three-dimensional anionic framework, [Al2(PO4)2F]−n, consisting corner-sharing AlO5 triangular bipyramids, octahedra, tetrahedra, revealing intersecting open tunnels along the [010], [001], [111] directions. Notably, both K[Al2(PO4)2F(H2O)] exhibit moderate second harmonic generation effects. Besides, porous material exhibited remarkable ionic exchange properties Cs+, implying its potential utility remediation radioactive waste offering promising solution for managing nuclear contaminants. This research reports on their syntheses, topological structures, elemental analysis, thermal stability, IR Raman spectroscopy, UV–Vis diffuse reflectance ion property, nonlinear optical characteristics.

Language: Английский

Citations

0