Photocatalytic degradation of MB by novel and environmental ZnO/Bi2WO6-CC hierarchical heterostructures

ZnO-CC and ZnO/Bi2WO6-CC with different Bi2WO6 loadings layered heterostructures photocatalysts were synthesized on flexible carbon clothes (CC) substrate by the thermal decomposition-hydrothermal method. By characterizing the degradation of methylene blue (MB) under ultraviolet light irradiation, Z3B-CC (3 wt% Bi2WO6) showed the best photocatalytic effect, and the photodegradation rate of MB was as high as 96.9% in about 100 min. This new ZnO/Bi2WO6-CC layered heterostructure exhibits prominent photocatalytic performance, which is mainly ascribed to the type II band structure formed by ZnO andBi(2)WO(6). The appropriate energy band position further facilities the effective transfer of carriers and realizes the photocatalytic process of the heterostructure. This study is prospective to provide new ideas for the synthesis of other high-efficiency heterostructure photocatalytic designs, and it also has reference value for the synthesis of flexible photo catalytic materials with excellent performance.

Automated summary

ZnO/Bi2WO6-CC layered heterostructures photocatalysts with different loadings of Bi2WO6 were synthesized on flexible carbon clothes substrate. The Z3B-CC (3 wt% Bi2WO6) showed the best photocatalytic effect, with a photodegradation rate of methylene blue as high as 96.9% in about 100 minutes. The type II band structure formed by ZnO and Bi2WO6 contributes to the excellent photocatalytic performance of this new layered heterostructure.