Efficient iodine enrichment into a particular substance is of great importance from both stances of iodine recovery from dilute source and iodine removal from a radioactive source. Ball milling α-Bi₂O₃ was first proposed to generate abundant oxygen vacancy for enhancing the incorporation of iodide anion (I^-). A set of characterization techniques, such as X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and X-ray photo-electron spectroscopy (XPS) were performed to understand the mechanism of I^- incorporation into bismuth oxide. Gradual distortion of the crystalline structure of bismuth oxide was induced by mechanical activation to result in the occurrence of oxygen vacancy and amorphous state after prolonged milling operation. Formation of insoluble BiOI was obtained by simply agitating the activated bismuth oxide in an iodine-containing solution to achieve efficient iodine enrichment. This newly proposed strategy opens up a green technique with great potential for environmental remediation and iodine recovery when dealing with iodine sources.

从稀释源中回收碘和从放射源中去除碘这两种立场，使碘有效富集到特定物质中都非常重要。球磨α-Bi系₂ ö ₃首次提出，以产生充足的氧空位用于增强碘阴离子（I掺入^- ）。一组表征技术，如X-射线衍射（XRD），扫描电子显微镜（SEM）和X射线光电子光谱法进行（XPS）来了解I的机制^-掺入氧化铋中。机械活化会导致氧化铋晶体结构的逐渐变形，从而导致长时间研磨后出现氧空位和非晶态。通过简单地在含碘溶液中搅拌活化的氧化铋来获得不溶性BiOI，以实现有效的碘富集。这项新提出的策略开辟了一种绿色技术，在处理碘源时具有很大的环境修复和碘回收潜力。