Fig. 4From: One Step In Situ Loading of CuS Nanoflowers on Anatase TiO2/Polyvinylidene Fluoride Fibers and Their Enhanced Photocatalytic and Self-Cleaning PerformanceHigh-resolution XPS spectra of a Ti 2p, b O 1s, c Cu 2p, and d S 2p in Cu 1 sampleBack to article page