Study on Preparation and Photocatalytic Activity of Ag-doped ZnO

Abstract

Abstract:

Objective: To explore the photocatalytic activity of Ag-doped zinc oxide. Methods: Ag doped ZnO（Ag-ZnO）with
different Ag molar content was prepared by direct precipitation method. XRD, XPS, TEM, UV- Vis DRS, and PL were used to
characterize the products. When Rhodamine B（RhB）was selected as the model contaminant, 1 000 W halogen lamp as light source,
the effects of different amount of Ag-doped on the photocatalytic activities of ZnO were explored. Results: Photocatalytic activity of
ZnO was enhanced when appropriate amount of Ag was doped into ZnO. The optimum amount of doped-Ag are x = 2% and x = 6%.
Ag-ZnO with the optimal Ag-doped amount showed the highest photocatalytic activity, and the active spectral range isλ < 400 nm.
Conclusion: Ag can improve the photocatalytic activity of ZnO, while cannot change the active spectral range of ZnO.

Key words: direct precipitation, silver, dope, zinc oxide, photocatalysis

CLC Number:

O611.3

Zhang Yanqing, Li Dandan, Yan Ya. Study on Preparation and Photocatalytic Activity of Ag-doped ZnO[J]. J4, 2016, 1(6): 38-42.

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