Microwave Synthesis and Photocatalytic Activity of CeVO4 Nanocrystalline

Cong Sen Wang; Xiao Dong Chen; Xue Hong Liao

doi:10.4028/www.scientific.net/AMR.1081.146

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1081Microwave Synthesis and Photocatalytic Activity of...

Microwave Synthesis and Photocatalytic Activity of CeVO₄Nanocrystalline

Abstract:

Cerium vanadate nanocrystalline was prepared by cerium nitrate, vanadium (V) oxide as raw materials and sodium dodecyl sulfate as surfactant under microwave irradiation. The sample was characterized by X-ray diffraction (XRD) and scanning electron micrograph (SEM). The XRD show that the as-prepared sample calcined at 773 K is tetragonal zircon, and the SEM graph show that the as-prepared CeVO₄ nanocrystalline is layer structure formated of small particles aggregation. We studied the photocatalytic activity of the as-prepared samples by using degradation of methyl orange in visible light. It shows that the photocatalytic activity of Cerium vanadate nanocrystalline was very well. The effects of different factors such as calcination temperature and the concentration of methyl orange on the characterization of CeVO₄ are discussed. It found that when the catalyst calcined at 873 K was 0.10 g, and 0.3 mL hydrogen peroxide joined as well as, pH was 2.0, the degradation ratio of CeVO₄ for methylene orange of 100 mL 20 mg/L reached 87% in 80 min.