采用液相化学还原法,以壬基酚聚氧乙烯醚为修饰剂,水合肼为还原剂,在水及甲醇-水体系中,还原硫酸铜制备了纳米铜颗粒;利用TEM、XRD、FTIR研究了反应条件对纳米铜颗粒稳定性及粒径的影响.结果表明:在甲醇-水体系中,当壬基酚聚氧乙烯醚与硫酸铜数量(摩尔)比达到1:1时,能在纳米铜颗粒表面形成较紧密的吸附层,有助于提高纳米铜颗粒的稳定性,得到较小粒径(20 nm)的纳米颗粒.
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