摘要
Presently, the green synthesis method of W18O49 nanoparticles and W18O49/g-C3N4 utilizing Clitoria ternatea flower extract is presented. The hydrothermal procedure was applied in the synthesis, and prepared materials were examined as photocatalysts for tetracycline removal on a photocatalytic degradation and photocatalytic oxidation processes. Physicochemical characterization of the materials was conducted utilizing x-ray diffraction, scanning electron microscopy, transmission electron microscopy, x-ray photoelectron spectroscopy, and UV-Visible diffuse reflectance UV-Visible. Results showed that W18O49 nanoparticles were successfully produced with nanorods morphology and particles' size ranging at 2-35nm. The dispersion of W18O49 into g-C3N4 created a-Z scheme heterojunction as revealed by the band gap energy values and increased photocatalytic activity. Under photocatalytic oxidation system, the prepared W18O49 and W18O49/g-C3N4 exhibit excellent activities as the degradation efficiencies are 55.82% and 99.15%, respectively. Meanwhile, by under photocatalytic degradation system, the achieved efficiencies were 41.36% and 77.50%, respectively. Study on the effect of scavenger revealed that •OH radical plays the most important role in the mechanism.