来源：ACS PublicationsWe present a detailed structural investigation of a series of seven new quaternary Li-containing selenosilicates, RE3LiSiSe7 (RE = La–Nd, Sm, Gd, and Tb), prepared using the boron chalcogen mixture (BCM) method in the presence of LiCl flux. Single crystals of high quality were grown, and single-crystal X-ray diffraction was utilized to determine their structures. The compounds RE3LiSiSe7 (RE = La–Nd, Sm, Gd, and Tb) crystallize in hexagonal P63 space group. In the structure, the three-dimensional framework is built from RESe8 bicapped trigonal prisms, SiSe4 tetrahedra, and L...
Release time:
2026
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来源：ACS PublicationsThe extraction of rare earth elements (REE) from complex mineral matrices typically relies on hydrometallurgical routes involving strong inorganic acids, which pose significant environmental and operational challenges, including silica gel formation. In this study, a sustainable leaching approach was developed for the recovery of Ce, La, and Nd from calcined bastnasite ore using a nonaqueous type IV deep eutectic solvents (DES) composed of ethylene glycol (EG) and iron(III) chloride (FeCl3). A systematic optimization was conducted using the Taguchi L32 orthogonal array desig...
Release time:
2026
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07
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来源：ACS PublicationsIn this work, the pyrene-based linker 1,3,6,8-tetrakis(p-benzoic acid)pyrene (H4TBAPy) is used for the synthesis of rare-earth (RE) metal–organic frameworks (MOFs) featuring chain-based secondary building units with Y(III) and the series of 15 lanthanoids, yielding two different MOFs. One named RE-CU-05 with Y(III) and Gd(III) to Lu(III) and the second named RE-CU-06 with La(III) to Eu(III). Synchrotron X-ray diffraction measurements were used to determine the local structure of the nine RE-CU-05 analogues through pair distribution function (PDF) analysis, while electron dif...
Release time:
2026
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来源：ACS PublicationsThe growing demand for rare-earth elements motivates sustainable alternatives to solvent extraction. Here, we report a new paradigm of coordination-active surfactants for lanthanide ion flotation, protein-ligand conjugates, that combine strong inner-sphere chelation with intrinsic protein foamability. Bovine serum albumin functionalized with diethylenetriamine-pentaacetate binds up to 25 equivalents of EuIII per protein and directly enriches lanthanides from aqueous solution by flotation. This platform achieves selective separation of EuIII from LaIII and maintains high capt...
Release time:
2026
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