掺杂TiO2时的阴离子SO4-,应该在清洗的时候尽量去除。如果留到煅烧阶段,300摄氏度是很难去除的。去除与否,可以通过拉曼光谱或红外光谱鉴定。 我在文中是这么写的:The samples after washing with distilled water were dried at room temperature and calcined at 573 K for 2 h to remove the organic matters. 。审稿人是这么问的:When suing NiSO4?7H2O and MnSO4?H2O as dopants, the so4 group will not be removed after annealing. What effects can the SO4 group has on the optical absorption and photocatalytic efficiency of related metal-doped KLaTi2O6 samples?我不知道该如何合适的回答,