CuFe2O4活化过一硫酸盐降解四环素

采用水热合成法制备出了一种具有较高催化活性的催化剂CuFe2O4,并利用CuFe2O4活化过一硫酸盐(PMS)处理模拟抗生素废水盐酸四环素(TC),考察了操作条件初始pH、CuFe2O4投加量和PMS投加量对TC降解效果的影响。结果表明,初始pH在2~10的范围内,随初始pH的升高TC的降解率先稳定而后逐渐降低;TC的降解速率随着PMS投加量和CuFe2O4投加量的增加而逐渐增加。在CuFe2O4/PMS体系中存在活性物种·OH、SO4·-和1O2。在催化剂循环使用实验中,CuFe2O4展现出了较好的重复利用性能。在CuFe2O4/PMS体系中,TC降解出水对发光菌的抑制率先升高而后逐渐降低,也说明CuFe2O4/PMS体系对降解TC是一种有效的方法。

Catalytic degradation of tetracycline hydrochloride by peroxymonosulfate activated with CuFe2O4

A kind of catalyst CuFe2O4 with high catalytic activity was prepared in hydrothermal synthesis method,and it was applied to activate peroxymonosulfate(PMS)for the degradation of tetracycline hydrochloride(TC)in simulated antibiotic wastewater.The effects of operating conditions including initial pH,CuFe2O4 addition and PMS dosage on TC degradation were investigated.The results showed that TC degradation rate was first stable and then decreased with the increase of initial pH which was in the range of 2~10,and the TC degradation rate increased with the increasing PMS dosage and CuFe2O4 addition.There were active species(such as·OH,SO4·-and 1O2)in CuFe2O4/PMS system.CuFe2O4 exhibited good performance during the reusability of the catalyst.In CuFe2O4/PMS system,the inhibition rate of luminescent bacteria increased firstly and then decreased,which illustrated that the CuFe2O4/PMS system was an effective method for the TC degradation.