How toprepare PLZST precursor by coprecipitation has been discussed.Correspondingsoluble salts have been chosen as raw materials and ammonia as precipitator.

• 合适的工艺条件为：选择以各离子的可溶性盐为原料，以氨水为沉淀剂，通过共沉淀得到白色无定型前驱体，最佳的PH值范围为8。