The disposal of used photovoltaic panels is increasing day by day around the world. Therefore, an efficient method for recycling disposed photovoltaic panel is required to decrease environmental pollution. This work is aimed at efficiently recovering pure silicon and other materials such as aluminium, silver, and lead from disposed solar cells using chemical treatments. Earlier, the pure silicon was recovered by treating the solar cells with hydrofluoric acid or mixture of hydrofluoric acid and other chemicals. The usage of hydrofluoric acid is eliminated in the present work as it is highly toxic and corrosive chemical. The pure silicon (99.9984%) has been recovered by sequentially treating with three different chemicals. Aluminium, silver, and lead are also recovered as aluminium hydroxide, silver chloride, and lead oxide, respectively.

中文翻译：

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从废弃的太阳能电池中回收纯硅和其他材料

在世界范围内，废旧光伏面板的处置量正在日益增加。因此，需要一种有效的方法来回收处理过的光伏板以减少环境污染。这项工作旨在通过化学处理从废弃的太阳能电池中有效地回收纯硅和其他材料，例如铝，银和铅。早先，通过用氢氟酸或氢氟酸与其他化学物质的混合物处理太阳能电池来回收纯硅。由于氢氟酸是剧毒和腐蚀性化学物质，因此在本工作中不再使用氢氟酸。通过依次用三种不同的化学药品处理，可以回收到纯硅（99.9984％）。铝，银和铅也分别以氢氧化铝，氯化银和氧化铅的形式回收。