Vertically aligned CdTe nanotube arrays on indium tin oxide for visible-light-driven photoelectrocatalysis

Vertically aligned CdTe nanotube arrays with visible-light-driven photoelectrocatalytic (PEC) activity were achieved on ITO substrate. The high crystallinity, strong absorption of visible-light, and vertical arrays architecture were found to be beneficial for the photoelectrodegradation of Acid Blue 80. A detailed photocatalytic mechanism based on band alignment with the assistance of applied voltage was given.