The synthesis and characterization of hematite nanotube arrays for use as photo catalysts are described in this paper. Novel morphologies, including multilayered and wave-like nanottbe arrays, were synthesized via electrochemical anodization of iron foils in electrolytic solutions containing ammonium fluoride, ethylene glycol, and water. The nanotube formation mechanism was investigated by tracking they current response data during anodization. The results indicate that there are four distinct stages associated with the evolution of the nanotube arrays: an ohmic response stage, an oxide film formation stage, a chemical dissolution/pitting stage, and a steady-state growth stage. Morphological, optical, and photoelectrochernical properties of the resulting materials were characterized using X-ray diffraction, scanning electron microscopy, UV vis diffuse reflectance spectroscopy, linear sweep voltammetry, electrochemical impedance Spectroscopy, and incident photon to current efficiency (IPCE). The IPCE for the wave-like nanotube arrays at 350 nm was similar to 3 times that for the single layer nanotube arrays and similar to 12 times that for the multilayer nanotube arrays. The IPCE also increased With the electrochemical surface area and played a key role with regard to the photocatalytic performance.