SYNTHESIS AND CHARACTERIZATION OF Bi2WO6/ZnO MATERIALS FOR DEGRADATION OF LEVOFLOXACIN

Abstract

In recent years, the problem of water pollution containing antibiotics has become more and more serious at a global level. There are many methods used but photocatalysis is a new, effective method in organic matter treatment. ZnO photocatalyst materials are increasingly widely applied in the field of environmental treatment, but ZnO materials have the disadvantage that they only show photocatalytic activity under the influence of UV rays, so under the influence of the catalytic activity of sunlight will be limited. Therefore, we have modified Bi2WO6/ZnO materials and have successfully prepared them by hydrothermal method. The composites are characterized by modern analytical techniques such as XRD, EDX, FT-IR, SEM and UV-VIS. The results show that the mixing ratio of 20% Bi2WO6/ZnO achieves the best treatment efficiency of over 86% with optimal treatment conditions: pH=7 is the optimal pH of the material 20% Bi2WO6/ZnO, mass material 0,05 g, processing time for 150 minutes. Therefore, this material showed high potential to treatment antibiotic in water.