Fig. 3: Wavelength dependence of the observed photocatalytic activity.
From: Enhanced hybrid photocatalytic dry reforming using a phosphated Ni-CeO2 nanorod heterostructure

a, b Optical absorption spectra for the CeO2-CePO4 support and nickel-loaded samples with varying P:Ce ratio. c–f Wavelength-specific activities and catalyst temperatures of Ni-CeO2-CePO4 photocatalyst with a P:Ce ratio of 0.65, a reactor temperature of 350 °C.