来源：ACS PublicationsSecuring a sustainable supply of rare earth elements (REEs) requires efficient separation and recovery from secondary streams. Zeolites are attractive, low-impact sorbents; however, the atomistic origins of REE selectivity under hydrated conditions remain insufficiently resolved. Here, we combine high-resolution synchrotron X-ray powder diffraction (XRPD) with density functional theory (DFT) to elucidate the exchange and recovery mechanisms of Ce3+, La3+, Eu3+, and Y3+ in ammonium-exchanged faujasite X (NH4–X). Monoelement solutions mimicking the concentrations of leachates ...
Release time:
2026
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09
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Detoxification of Ion-Adsorption Rare Earth Elements Low-Level Radioactive Residues via Mild Alkali–Carbonate: Uranium Extraction and Multi-Metal Recovery 来源：ACS PublicationsImpeded by the harsh high-temperature/pressure conditions and persistent uranium (U) radioactivity, industrial scalability of the stepwise alkaline disposal for ion-adsorption rare earth elements (REEs) low-level radioactive residues (IAREEs-LLRRs) faced challenges. This work presented a mild atmospheric-pressure process for deep U(VI) extraction. After initial Al(III) leaching from IAREEs-LLRRs with dilute NaOH at atmosph...
Release time:
2026
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09
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来源：ACS PublicationsRare earth hexaborides (REB6) have attracted considerable attention owing to their unique structure. However, the ultrarigid boron cage covalent network within this structure poses immense challenges to the controlled synthesis of their nanocrystals, severely hindering the exploration of their electronic properties and promising application directions. Here we successfully synthesize monodisperse LaB6 nanocrystals with tunable sizes down to sub-20 nm, during which the formation of reactive intermediates and a solution chemistry-like reaction pathway facilitate the formation ...
Release time:
2026
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09
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Dual Self-Trapped Exciton and Rare-Earth Emissions from Sb3+/Pr3+-Activated Metal Halide toward Plant Cultivation Lighting, Dynamic Multilevel Anti-Counterfeiting, and High-CRI WLEDs 来源：ACS PublicationsSolid-state lighting technologies for protected horticulture and data security demand luminescent materials whose emission characteristics can be precisely engineered. Here, a novel lead-free double perovskite Cs2NaLuCl6:Sb3+,Pr3+ was synthesized via a hydrothermal route to supply the blue and red photons essential for plant photosynthesis. Incorporating Sb3+ (ns2 configuration) into the host la...
Release time:
2026
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09
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