Effect of N2/Ar plasma treatment on the visible light photocatalytic activity of CuO/TiO2

doi:10.1016/S1872-2067(14)60143-1

Abstract

Abstract:

The effect of N₂/Ar dielectric barrier discharge plasma on the photocatalytic activity of CuO/TiO₂ under visible light irradiation was studied. The photocatalysts were characterized by X-ray diffraction, ultraviolet-visible spectrophotometry, transmission electron microscopy, X-ray photoelectron spectroscopy, and electron paramagnetic resonance spectroscopy. The plasma parameters including gas composition, treatment time, and plasma power were investigated. The activities of the plasma-treated photocatalysts were evaluated by the photodegradation of methyl orange under visible light illumination. The optimal operation conditions were N₂:Ar = 8:2, treatment time of 20 min, and a discharge current of 1.0 A. Simulated mercury-containing wastewater was treated by the photocatalysts.

Key words: Titanium dioxide, Plasma, Modification, Nitrogen doping, Mercury

Zhengwei Luo, Hui Jiang, Longzhi Hu, Dan Li, Wenhua Geng, Ping Wei. Effect of N₂/Ar plasma treatment on the visible light photocatalytic activity of CuO/TiO₂[J]. Chinese Journal of Catalysis, 2014, 35(10): 1752-1760.

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Effect of N₂/Ar plasma treatment on the visible light photocatalytic activity of CuO/TiO₂

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