碱性溶液中氧化镁水化合成氢氧化镁颗粒

Synthesis of Superfine Mg(OH)_2 Particles by Hydration of MgO in Alkali Solutions

研究了低温条件下氧化镁于碱性溶液中水化合成片状氢氧化镁,生成的氢氧化镁颗粒直径为100～200nm。利用XRD和SEM对合成的氢氧化镁晶体的特性、颗粒大小和形貌进行了表征,同时对碱性条件下氧化铁的水化机理进行了讨论。

Superfine Mg（OH）2 particles are synthesized by a hydrating method of MgO in alkali solutions at low temperatures. These Mg（OH）2 particles have platelet shape and their sizes range from 100 to 200nm. The crystal phase,particle size distribution and morphology of the crystal particle are characterized with X-ray diffraction （XRD） and scanning electron microscopy （SEM）. The hydration mechanism of MgO under alkali conditions is also discussed.