Abstract The treatment of iodine wastes has been widely concerned. In this work, B2O3–Bi2O3 based material was used to immobilize the silver coated silica gel with different iodine loadings. Based on XRD results analyses, the sample with 90 mol% B2O3 was selected for iodine waste immobilization. XRD results represented that the sintering temperature of 500 °C was suitable to immobile iodine waste. The micro-structure of the sintered matrix mainly consists of the stretching vibration of [SiO4]. SEM-EDS results showed that the elements of Ag and I exist element aggregation in some regions, which indicates that part of AgI was immobilized in the glassy phase while the other was physically enclosed in the sintered matrix. This study provides certain valuable reference and experimental basis for the subsequent curing of iodine-containing silver coated silica gel with multicomponent glass.

中文翻译：

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B2O3-Bi2O3基材料对不同浓度碘的固定化银包硅胶

摘要 碘废物的处理受到广泛关注。在这项工作中，B2O3-Bi2O3 基材料用于固定具有不同碘负载的银包覆硅胶。根据 XRD 结果分析，选择含 90 mol% B2O3 的样品用于碘废物的固定。XRD结果表明500°C的烧结温度适合固定碘废物。烧结基体的微观结构主要由[SiO4]的伸缩振动组成。SEM-EDS结果表明Ag和I的元素在某些区域存在元素聚集，这表明部分AgI固定在玻璃相中，而另一部分物理封闭在烧结基体中。