Preparation of g-C3 N4/CeO2/Ag Ternary Nano-Photocatalyst and Its Photocatalytic Performance
A series of g-C3N4/CeO2/Ag heterojunction photocatalysts were designed by combining two modification methods of coupling semiconductor and depositing precious metal particles through sim-ple hydrothermal synthesis and photo deposition.The target photocatalyst was characterized by XRD,TEM and UV-Vis DRS,etc.,and through the removal of organic pollutants(methylene orange as an exam-ple)under visible light to evaluate its photocatalytic activity.The statistical results show that the catalytic activity of g-C3N4/10.0％CeO2/2.0％Ag heterojunction photocatalyst coupled with 10.0％CeO2 and 2.0％Ag is 2.91 times and 2.18 times higher than that of pure g-C3N4 and CeO2,respectively.The im-provement of photocatalytic activity is mainly attributed to the formation of heterostructures between com-posite materials and the introduction of Ag nanoparticles.
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