Preparation of ZnO/CH Composite Photocatalyst and its Photocatalytic Degradation Performance for RhB
Photocatalytic degradation technology has the advantages of high degradation efficiency,good stability,and green environmental protection,and is currently the most promising method for treating dye wastewater.ZnO,as the most common photocatalyst,has good performance in photocatalytic degradation.This article uses co precipitation method and high-temperature calcination method to synthesize ZnO/CH composite materials with different composite ratios on the basis of nano ZnO,adding chitosan material as the substrate.Through characterization,it is found that their morphology has changed from the original multi spherical dispersion to a single sheet-like structure,avoiding particle aggregation and increasing their photocatalytic specific surface area,improving the photocatalytic reaction efficiency.ZnO/CH(2∶1)can achieve complete degradation in 60 minutes.
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