Effects of UV-Vis Irradiation on Vanadium Etioporphyrins Extracted from Crude Oil and the Role of Nanostructured Titania

<table>UV-Vis absorbance spectra as a function of irradiation time of the standard vanadium etioporphyrins solution in acetone. The insets show the bands observed at 530 nm and 569 nm with the background subtracted.</table>

International Journal of Photoenergy

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Figure 6

Figure 6: Effects of UV-Vis Irradiation on Vanadium Etioporphyrins Extracted from Crude Oil and the Role of Nanostructured Titania 