Effect of Three Operating Variables on Degradation of Methylene Blue by ZnO Electrodeposited: Response Surface Methodology

摘要

There are several studies on the morphology of zinc oxide (ZnO) in the photocatalytic elimination oforganic pollutants, but few studies focus on the simultaneous effect of different operating parameters.Most studies have been carried out by unifactorial experiments, which is inefficient. For this reason, inthis study, ZnO thin films were prepared by electrodeposition and the response surface methodology(RSM) was applied to evaluate the effect of variables such as: concentration of methylene blue dye(MB), pH and air flow involved on the photocatalytic degradation of methylene blue. The resultsshowed that the RSM is a suitable technique to determine the operating conditions favorable for thedegradation of MB within a determined range of study.