Fig. 9From: One Step In Situ Loading of CuS Nanoflowers on Anatase TiO2/Polyvinylidene Fluoride Fibers and Their Enhanced Photocatalytic and Self-Cleaning PerformanceThe optical images of static contact angle for a–d TiO2/PVDF fibers, e–h Cu 0.1, and i–l Cu 1Back to article page