使用化学共沉淀法制备了用于有效去除铯离子 (Cs + ) 的三方六氰基铁酸锌 (TZHF) 纳米颗粒吸附剂。六氰基铁酸锌 (ZHF) 的形貌通过傅里叶变换红外光谱 (FTIR)、X 射线衍射 (XRD)、透射电子显微镜 (TEM)、高分辨透射电子显微镜 (HR-TEM) 和能量色散X 射线光谱 (EDS)。这些分析证实了ZHF的三角结构和表面积为43.08 m 2 /g。铯+去除率取决于 pH 值，在接近中性的条件下吸附量最大，去除率随着 pH 值的增加而降低。Langmuir 模型被确定适用于描述ZHF对 Cs +的吸附过程。Cs +吸附的机制通过使用镓内标的全反射X射线荧光(TXRF)来检查。此外，提出并讨论了离子交换过程吸附Cs +的主要机理。
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Synthesis, characterization, and caesium adsorbent application of trigonal zinc hexacyanoferrate (II) nanoparticles
Trigonal zinc hexacyanoferrate (TZHF) nanoparticle adsorbents for effective caesium ion (Cs+) removal were prepared using the chemical coprecipitation method. The morphologies of zinc hexacyanoferrate (ZHF) were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HR-TEM), and energy-dispersive X-ray spectroscopy (EDS). These analyses confirmed that the trigonal structure of ZHF and surface area is 43.08 m2/g. Cs+ removal was dependent on pH, with the greatest adsorption occurring under near-neutral conditions, and the removal process decreased with increasing pH. The Langmuir model was determined to be suitable for describing the adsorption process of Cs+ by ZHF. The mechanism of Cs+ adsorption was examined by Total Reflection X-ray Fluorescence (TXRF) using the gallium internal standard. In addition, the main mechanism of Cs+ adsorption by the ion exchange process was proposed and discussed.