LAUSR

Abstract Nano-TiO2 photocatalysts with different genders of Spilosoma niveus wing template microstructures were prepared using tetrabutyl titanate ethanol solution as the precursor by ultrasonic impregnation and calcination. The microstructure of the material was characterized by SEM, XRD, BET, FT-IR, etc. In addition, the performance of the photocatalyst was evaluated by the tauc curve and photocatalytic performance test. Additionally, 82% and 73% of RhB were degraded by male and female TiO2 photocatalyst with wing template microstructure within 10 min, which was superior to 59% of that of same-scale TiO2 nanofiber tube. The TiO2 photocatalyst prepared in this study perfectly replicated the 3D Spilosoma niveus wing structure, reduced the band gap width, and had a positive effect on photodegradation of organic pollutants.