在高浓度砷溶液中采用电沉积法制备As-Sb合金,考察电解液中电流密度、Sb3+浓度、反应温度和盐酸浓度对电沉积过程中电解液成分、槽电压和电流效率的影响,并采用扫描电镜(SEM)、电感藕合等离子体质谱(ICP-MS)和X射线衍射(XRD)分别对沉积物的表面形貌、成分和结构进行分析.结果表明:在所研究的工艺条件下制备的As-Sb合金沉积层均为非晶结构.最优工艺如下:As3+浓度为10 g/L,Sb3+浓度为2g/L,盐酸浓度为4 mol/L,电流密度为4 mA/cm2,温度为20℃,在此条件下电流效率达到94.74％,沉积层含70.26％ As和29.74％Sb(质量分数),砷的去除效率较高.
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