铅锑复合渣于低温真空蒸发直接制备纳米Sb₂O₃

来源期刊：中南大学学报(自然科学版)2006年第5期

论文作者：张荣良 丘克强 胡汉祥 唐淑贞 佘媛媛

文章页码：948 - 953

关键词：铅锑复合渣;纳米Sb₂O₃;真空蒸发

Key words：complex slag containing Pb and Sb; nanometer antimony trioxide; vacuum evaporation

摘    要：以铅锑复合渣为原料,用低温真空蒸发法直接制备纳米Sb₂O₃。通过XRD、激光粒度仪、SEM和白度仪分别对Sb₂O3的结构、形貌、粒度和白度进行表征,探讨温度、残压、时间等对Sb的蒸发率以及Sb₂O₃的纯度、白度和粒度的影响。研究结果表明:在温度为893 K、残压为250 Pa和时间为2 h的条件下,纳米Sb₂O₃具有立方晶型,其平均颗粒粒度为72 nm,比表面积为15.5 m²/g,白度为90.0%,纯度为98.50%。

Abstract: Nanometer antimony trioxide from the complex slag containing Pb and Sb was prepared at low temperature by the vacuum evaporation method. The structure, morphology, particle size, distribution ranges of the particle size and whiteness of Sb₂O₃ were characterized by XRD,SEM, laser sizer and whiteness meter, respectively. The influence of temperature, pressure and time on the evaporation rate of Sb, the purity and whiteness and average particle size of Sb₂O₃ was investigated. The results show that Sb₂O₃ obtained at 893 K and 250 Pa for 2 h has an average particle size of 72 nm, specific surface area of 15.5 m²/g, whiteness of 90%, and Sb₂O₃ purity of 98.50% with cubic crystals.