Abstract—

Bismuth-containing composite materials are synthesized by the impregnation of matrices of thermally modified porous glass (PG) in 0.5 M aqueous solutions of bismuth nitrate followed by heat treatment. The optical density spectra of the obtained materials are studied depending on the heat treatment temperature (400–870°C). When the temperature of the heat treatment is increased, the distribution of bismuth in the samples becomes more homogeneous. The heat treatment in the range of 650 to 870°C leads to the degree of bismuth oxidation changing from Bi³⁺ to Bi²⁺ ions with the formation of dimers and clusters of bismuth.

中文翻译：

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热处理条件对高硅多孔玻璃基含铋复合材料光学性能的影响

摘要-

含铋的复合材料是通过将热改性多孔玻璃（PG）的基质浸渍在0.5 M的硝酸铋水溶液中，然后进行热处理来合成的。研究所得材料的光密度光谱，取决于热处理温度（400–870°C）。当热处理温度升高时，样品中铋的分布变得更均匀。在650至870°C的温度范围内进行热处理会导致铋的氧化程度从Bi ³⁺变为Bi ²⁺，形成铋的二聚物和簇。