微波水解法制备针形α-Fe2O3纳米粒子

为了研究微波在纳米晶粒形成中的作用，用ＦｅＣｌ３溶液在微波作用下水解，并在其中掺入ＮａＨ２ＰＯ４的方法，制备了针形的α－Ｆｅ２Ｏ３纳米粒子。结果，水解速度大大提高，并且，通过测试发现，水解液的酸度、各奄分浓度的配比及微波作用时间对晶粒的结构和形貌均有重要影响。本文对微波与Ｈ２ＰＯ４＾－在形成针形纳米晶粒中的作用机制也作了阐述。

Microwave-Hydrolysis Synthesis Spindle-Type Hematite Particles

To study the microwave effects to the formation of nanoparticles, the hydrolysis reaction of FeCl 3 with NaH 2PO 4 to get spindle-type colloidal hematite particles under microwave radiation was reported We found that the reaction velocity increased greatly, and the reaction conditions, for example, the acidity of the solution, concentration ratio of the components and the microwave radiation time had important effects on the nanoparticle formation and the morphology Here, the roles of microwave and H 2PO - 4 during the hydrolysis process were also discussed