Synthesis and Characterization of Hollow Core-Shell ZrO2@void@BiVO4 Visible-Light Photocatalyst

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Monoclinic scheelite BiVO4 was synthesized from a mixture of aqueous Bi(NO3)3 and NH4VO3 solutions by hydrothermal method. Then using successive coating of BiVO4 with a carbon layer and a ZrO2 layer followed by heat treatment to remove the carbon layer prepared a core-shell(ZrO2@void@BiVO4) nanoparticles with a void layer between the BiVO4 core and the ZrO2 shell. TG-DTA and IR suggest that BiVO4 was coated with ZrO2. TEM shows that there was a void space between the BiVO4 core and the ZrO2 shell. The samples were characterized by XRD and the peaks of ZrO2@void@BiVO4 suits well with the pure phase monoclinic scheelite BiVO4. And its visble-light photocatalytic activity was evaluated by the photodegradation of methylene blue(MB). The results indicated that the photocatalytic activity of ZrO2@void@BiVO4 is similar to that of pure phase BiVO4, which makes it can be used for preparing liquid-gas phase boundary visble-light photocatalyst.

Info:

Periodical:

Advanced Materials Research (Volumes 148-149)

Edited by:

Xianghua Liu, Zhengyi Jiang and Jingtao Han

Pages:

1331-1338

DOI:

10.4028/www.scientific.net/AMR.148-149.1331

Citation:

B. H. Yao et al., "Synthesis and Characterization of Hollow Core-Shell ZrO2@void@BiVO4 Visible-Light Photocatalyst", Advanced Materials Research, Vols. 148-149, pp. 1331-1338, 2011

Online since:

October 2010

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Price:

$38.00

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