来源：ACS PublicationsRare earth elements (REEs) are essential for contemporary technologies; however, their sustainable recovery from aqueous media remains challenging due to limited reserves and the environmental impacts associated with conventional extraction methods. This study presents the synthesis of magnetically retrievable core@shell nanocomposites (MRCSNs) as an efficient platform for REE adsorption from water. The MRCSNs consist of a magnetic zerovalent iron nanoparticle core, a silica shell scaffold, and surface-attached functional ligands, including 3-aminopropyltriethoxysilane (NH2)...
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2026
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来源：ACS PublicationsThe molten flux method was used to grow crystals belonging to two different classes of rare-earth hafnium molybdates, RE2Hf3(MoO4)9 and RE2Hf2(MoO4)7, whose luminescence and magnetic properties were investigated. The first structure type, RE2Hf3(MoO4)9, spans from La to Eu (except Pm) and crystallizes in the trigonal R-3c space group. In this structure, MoO4, REO9, and HfO6 are connected via their corners. The MoO4 units form open channels along the c-axis, which are occupied by columns of REO9 and HfO6 polyhedra. The second structure type, RE2Hf2(MoO4)7, includes RE = Sm, E...
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2026
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07
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来源：ACS PublicationsRecovering rare earth (RE) ions from mining wastewater offers several advantages, including reducing resource scarcity, minimizing environmental pollution, and lowering biological toxicity hazards. In this study, we synthesized a green adsorbent material, potato starch-derived β-cyclodextrin nanosponges (β-CD@PCPP NSs), via ionic cross-linking of β-cyclodextrin (β-CD), functionalized polyethylenimine (PEI), potato starch (PS), and chitosan (CS). The β-CD@PCPP NSs demonstrated favorable selectivity for cerium (Ce3+) and holmium (Ho3+), achieving maximum adsorption capacities ...
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2026
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07
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来源：ACS PublicationsAmbient electrochemical production of rare earth metals (REMs) in organic electrolytes has emerged as a promising alternative to conventional high-temperature and chemically intensive processes. Over the past two decades, a limited number of research groups have demonstrated the feasibility of REM electrodeposition under room temperature conditions. However, practical implementation remains limited by challenges in metal stability, selectivity, electrolyte performance, and scalability. This perspective critically assesses reported ambient REM electrochemical systems, includi...
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2026
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