Abstract
ZnO nanorod arrays (NAs) were prepared by a simple two-step process on the Ag rods. The X-ray diffraction and HRTEM characterizations indicated that ZnO nanorods were hexagonal wurtzite single crystalline structure. Photoelectrocatalytic performances of Ag rods with ZnO NAs (ZnO NAs/Ag rods) were studied systematically for the removal of rhodamine B (RhB). Under the optimal condition, the photoelectrocatalytic efficiency was nearly twice the photocatalytic efficiency, which can be attributed to the more efficient separation of photo-generated carriers. Our results show that ZnO NAs/Ag rods should be a promising photoelectrode for photoelectrocatalysis progress.
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