来源：ACS PublicationsIn this study, ZIF-8/HKUST-1 and ZIF-67/HKUST-1 composite materials were fabricated via a stepwise solvent-assisted synthesis route. The materials were characterized by Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and N2 physisorption (BET). The La3+ adsorption performance was systematically evaluated through batch experiments under varying pH, contact time, initial concentration, and temperature. The experimental data were fitted to kinetic, isotherm, and thermodynamic models to elucidate the underlying adsorp...
Release time:
2026
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来源：ACS PublicationsBismuth-doped rare earth iron garnet (Bi:RIG) is a promising magneto-optical material for use in 1310 nm optical isolators. The top-seeded solution growth (TSSG) method has advantages for growing high-quality crystals. However, the Bi concentration in the bulk iron garnet crystal grown by this method is low, leading to a small specific Faraday rotation angle (θF). To increase θF in the Bi:RIG crystal in this paper, a large ion radius of Nd3+ would be introduced into the RIG garnet crystal to expand the unit cell and enhance the Bi3+ concentration. Thus, high-quality and heav...
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2026
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来源：ACS PublicationsEu2P2S6 exists in centrosymmetric (P21/c) and noncentrosymmetric (Pc) polymorphs whose [EuS8] and [P2S6] building blocks are virtually identical; the sole distinction is a symmetry breaking assembly governed by weak interactions. Quasi-harmonic free-energy calculations indicate the noncentrosymmetric phase is only ∼0.09 eV per cell above the centrosymmetric ground state, revealing marginal metastability, while first-principle atom response theory predicts a moderate second harmonic generation coefficient (deff ≈ 0.9 pm V–1). Strong 4f electron correlation induces pronounced ...
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2026
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来源：ACS PublicationsThe search for rare-earth triangular-lattice antiferromagnets continues to attract considerable attention owing to their potential for hosting exotic magnetic ground states. Here, we report the synthesis, crystal structure, and magnetic properties of the tellurate series, K3RETe2O9 (RE = Pr, Nd, and Gd–Yb), which crystallizes in a hexagonal (P63/mmc) structure. In the structure, the RE3+ ions form a large triangular lattice in the ab plane, with nearest-neighbor RE–RE distances ranging from 6.0429 to 5.9082 Å. Magnetization measurements reveal dominant antiferromagnetic...
Release time:
2026
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