Effects of an electrospun Janus structure on enhanced UV resistance performance

added being proportional to the UV resistance. Additionally, the UV resistance of the nanofiber membranes did not decrease substantially after seven days of immersion in solutions at different pH values. Finally, this study analyzed the mechanism by which the Janus structure enhanced the UV resistance. The UV light was reflected, refracted, and absorbed many times on the crescent side with excellent UV-absorption performance, which greatly improved the UV resistance of the membrane.