Preparation of the Coupled Photocatalyst Bi12TiO20/ZnO by Ball Milling and Its Activity Evaluation

doi:10.7517/j.issn.1674-0475.2010.03.202

Abstract

Abstract: The coupled photocatalyst Bi₁₂TiO₂₀/ZnO was prepared by ball milling of ZnO in H₂O solution doped with Bi₁₂TiO₂₀.The structural and optial properties of the coupled photocatalyst Bi₁₂TiO₂₀/ZnO were characterized by X-ray powder diffraction (XRD),scanning electron microscopy (SEM) and UV-Vis diffuse reflection spectrum (DRS).The photocatalytic activity of the photocatalyst was evaluated by degradation of methyl orange.The results showed that the photocatalytic activity of the coupled photocatalyst Bi₁₂TiO₂₀/ZnO was higher than that of ZnO on the photocatalytic degradation of methyl orange.The photocatalytic degradation ratio was up to about 95.2% in 20 min using Bi₁₂TiO₂₀ (0.5%)/ZnO which was milled for 12 h and calcined at 300℃.

Key words: zinc oxide, bismuth titanate, photocatalyst, ball milling

CLC Number:

WANG Yan-ling, WANG Jun-en, CAO Jing, LIN Hai-li. Preparation of the Coupled Photocatalyst Bi₁₂TiO₂₀/ZnO by Ball Milling and Its Activity Evaluation[J]. Imaging Science and Photochemistry, 2010, 28(3): 202-208.

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Preparation of the Coupled Photocatalyst Bi₁₂TiO₂₀/ZnO by Ball Milling and Its Activity Evaluation

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