摘 要：采用空气氧化法制备了纳米级氧化铁黄颗粒，并用 XRD、 TEM 对样品进行了表征。工艺过程分两步，第一步，晶种制备过程， 讨论了初始 Fe²⁺ 浓度、空气流量和通气时间对晶种形成的影响，最 佳工艺分别为 1 mol/L、2 L /min、2 h；第二步，铁黄制备过程，研究 了 pH 值、空气流量和通气时间对铁黄制备的影响，最佳工艺分别 为 2.5~3.5 之间、4 L /min、36 h。此法可制得黄色，梭形，长、径分别 约为 51 nm，9 nm 的纳米氧化铁黄粉末。 

关键词：空气氧化法；纳米粒子；氧化铁黄

Abstract: Nano-sized iron oxide yellow particles were prepared by air oxidation, and characterized by XRD and TEM. This process include two steps. First, the effects of Fe²⁺ initial concentration, air flow rate and bubbling time on the formation of crystal seed were discussed, the best qualifications were 1 mol/L，2 L /min，2 h; then, the effects of pH value, air flow rate and bubbling time on the preparation of iron oxide yellow particles were discussed，the best qualifications were 2.5~3.5，4 L/min，36 h. Nano-sized iron oxide particles of yellow，shuttle-shape, 51nm long and 9nm diameter can be got. 

Keywords: air oxidation；nano-sized particles；iron oxide yellow