【摘要】 通过水热法制备Co改性沸石催化剂（Co/沸石）,采用SEM、XRD、FTIR和BET等对制备的产品进行了表征,并利用其催化过硫酸氢钾（PMS）降解染料罗丹明6G。实验结果表明,Co/沸石可以高效催化PMS降解罗丹明6G。提高Co/沸石和PMS浓度,罗丹明6G降解效率增大;溶液初始pH在5～11范围内,均可获得较高的降解率;HCO₃ˉ对降解反应具有抑制作用;提高反应温度,有利于降解反应的进行。SO₄^·-和¹O₂是降解反应的主要活性氧物种。Co/沸石在重复利用3次后仍具有较好的催化性能。更多还原

【Abstract】 Cobalt modified zeolite（Co/zeolite）catalyst has been prepared by hydrothermal method,characterized by SEM,XRD,FTIR and BET,and used for catalyzing the degradation of rhodamine 6G by potassium peroxymonosulfate（PMS）.The experimental results show that Co/zeolite can efficiently catalyze the degradation of rhodamine 6G by PMS.With the increase of the concentrations of Co/zeolite and PMS,the rhodamine 6G degradation efficiency is increased.When the solution initial pH is in the range of 5-11,comparatively high degrading rates can all be obtained.HCO₃^-has inhibiting effect on degradation reaction.Increasing the reaction temperature is advantageous to the implementation of degradation reaction.SO₄^·-and¹O₂are the main active oxygen species of degradation reaction.The Co/zeolite still exhibits comparatively good catalyzing capability after being used 3 times repeatedly.更多还原