Abstract
Novel Z-scheme WO3/g-C3N4 heterojunction was prepared by hydrothermal method combining ball milling. The degradation of Rhodamine B dye was used to evaluate the photocatalytic activity. The results showed that WO3/g-C3N4 composites synthesized by ball milling method exhibited the highest degradation efficiency of 95.5% than pure WO3 (7.4%), bulk g-C3N4 (45.6%) and other WO3/g-C3N4 composites (53.0%). The enhancement of the photocatalytic activity may be attributed to the higher specific surface area caused by ball milling and the formation of the Z-scheme heterojunction between g-C3N4 layers and WO3 nanosheets which could promote the separation and transfer of photogenerated electron-hole pairs.
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