Surface plasmon resonance enhanced photocatalytic activity of novel Au@CuAl2O4 fibers under visible light

Well-designed Au nanoparticles (Au NPs) deposited CuAl2O4 (Au@CuAl2O4) fibers were successfully fabricated using electrospinning and magnetron sputtering methods. XRD and XPS results indicate that crystalline Au and CuAl2O4 are formed in Au@CuAl2O4 fibers after calcination at 800 °C. Au NPs are tightly connected with CuAl2O4 fibers, and the deposition contents and the sizes of Au NPs could be easily regulated by adjusting the sputtering time. After depositing 1.46 wt