Cu_2O可见光催化降解环境内分泌干扰物双酚E

Photocatalytic Degradation of Environmental Endocrine Disruptors BPE Using Cu_2O under Visible Light Irradiation

采用水解法制备Cu2O,以Cu2O为催化剂,对光催化降解水中环境内分泌干扰物双酚E(BPE)的性能和影响因素进行了研究。利用高效液相色谱法测定降解后水中BPE的含量,探讨了催化剂投加量、H2O2加入量、溶液的初始浓度及pH值对BPE降解效率的影响。在光照120 min、催化剂投加量为0.4 g/L、H2O2的投放浓度为7.5 mL/L,BPE初始浓度为10.0 mg/L、pH值=5.0的条件下降解效果达86.84%。

Cu2O was used as catalyst which was prepared by hydrolysis method. Properties and influencing factors of the photocatalytic degradation of environmental endocrine disruptors BPE were studied. The concentration of BPE in water was determined by high performance liquid phase chromatography（HPLC）. The influences of initial concentrations of BPE, H2O2 and Cu2O, initial pH value on photodegradation efficiency of BPE were discussed. After 120 minutes irradiation, the photodegradation efficiency of BPE reached 86.84 % under the conditions of Co （Cu2O）=0.4 g/L, C0（H2O2）= 7.5 mL/L, Co （BPE）=10.0 mg/L and pH=5.0. bisphenol-E（BPE）