四氧化三钴/膨润土活化过一硫酸盐降解盐酸洛美沙星

Degradation of lomefloxacin hydrochloride through the activated peroxymonosulfate by bentonite-supported Co_(3)O_(4)

本文以合成的四氧化三钴/膨润土(Co_(3)O_(4)/Bent)活化过一硫酸盐(PMS)降解盐酸洛美沙星(LOMH),探究了反应温度、LOMH质量浓度和腐殖酸质量浓度对LOMH降解的影响,并研究了该催化剂对不同质量浓度的盐酸四环素(TC-HCL)、左氧氟沙星(LVFX)、环丙沙星(CIP)的降解效果。实验结果表明,在反应温度为40℃、LOMH初始质量浓度为10 mg/L时,Co_(3)O_(4)/Bent降解LOMH的效果最佳,60 min时LOMH的降解率为97.6%;腐殖酸对LOMH的降解具有轻微的抑制作用;Co_(3)O_(4)/Bent催化活化PMS对TC-HCL、LVFX、CIP皆具有良好的降解效果。

In this experiment,bentonite-supported Co_(3)O_(4)(Co_(3)O_(4)/Bent)was prepared and used to activate the peroxymonosulfate(PMS)for degradation of lomefloxacin hydrochloride(LOMH).The effects of reaction temperature,LOMH concentration and humic acid concentration on the degradation of LOMH were investigated.In addition,the degradation effects of the catalyst on tetracycline hydrochloride(TC-HCL),levofloxacin(LVFX)and ciprofloxacin(CIP)at different concentrations were also studied.The experimental results showed that when the reaction temperature was 40 C and the concentration of LOMH was 10 mg/L,Co_(3)O_(4)/Bent showed the best degradation effect of LOMH,and the degradation ratio of LOMH at 60 min was 97.6%.Humic acid slightly inhibited the degradation of LOMH.Co_(3)O_(4)/Bent has a good degradation effect on TC-HCL,LVFX and CIP.