响应面法优化Cu-BiVO_4可见光催化降解扑热息痛污染物工艺研究

Process optimization for visible light photocatalytic degradation of paracetamol using Cu-BiVO_4 by response surface methodology

Cu-BiVO4可见光催化方法是一种去除环境中扑热息痛污染物的有效绿色方法。采用研制出的Cu-BiVO4催化剂在可见光条件下降解扑热息痛,运用响应变量控制法,研究了催化剂负载量、催化剂投加量、初始溶液pH值等工艺条件对降解效果的影响。在可见光照射下5h降解扑热息痛的最佳工艺条件为:催化剂投加量为80mg、催化剂负载量为5%、溶液初始pH值为6,在此工艺条件下降解扑热息痛的效率为72.6%。

Visible light induced degradation of paracetamol（PCT）using Cu-BiVO4 as photocatalyst is an attractive and sustainable method.In this paper,to investigate the PCT photocatalytic degradation process,response surface methodology was adopted to analysis the operation parameters such as catalyst dosage,catalyst loading,and initial p H value.The optimum degrading conditions under visible light irradiation within 5 hours were as follows：catalyst dosage of 80 mg,5 ％ catalyst loading,initial pH value with 6,respectively.Additionaly,under this condition,the degrading efficiency of PCT was 72.6 ％.