均匀纺锤形β-FeOOH超微粒的制备与表征

Preparation and investigation of homogeneous spindle-type β-FeOOH ultrafine particles

通过液相法利用三氯化铁和乙酰胺为原料,制备均匀纺锤形β-FeOOH超微粒子,考察了反应温度、反应物浓度、乙酰胺与Fe3+的摩尔比、搅拌速度、反应时间以及陈化时间对产物粒径的影响.采用透射电子显微镜(TEM)和X射线衍射(XRD)分析法对其进行了表征,结果表明β-FeOOH呈金黄色,粒径分布较均匀,外形呈纺锤形.

This paper studied the preparation and investigation of homogeneous spindle - type β - FeOOH particles. Spindle - typeβ - FeOOH was synthesized by using FeCl3 solution and acetamide solution. The particles＇ shapes and the phase composition were characterized by TEM and XRD, respectively. The effect factors on the ultmfine particles such as the reaction temperature, reactants＇ concentration, the mole ratio of [Fe^3＋] and acetamide, stirring speed, the time of reaction and the time of deposition were investigated.