Facile Hydrothermal Synthesis of Plasmonic Photocatalyst Ag@Ag Cl and Degradative Photocatalysis under Visible Light Irradiation
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2015年第1期
论文作者：梁英华 LIN Shuanglong LIU Li HU Jinshan 崔文权
文章页码：84 - 91
摘 要：We put forward a new approach for the synthesis of Ag@Ag Cl plasmonic photocatalyst via a hydrothermal-deposition-photoreduction method. The cetylmethylammonium chloride（CTAC） was used alone as both a source of reactants and surfactant. The structure of the prepared photocatalyst was determined by XRD, SEM, EDX and UV-Vis spectroscoscopy. The photocatalytic properties were investigated by degradation of an organic pollutant, Rhodamine B, under visible light irradiation. The results reveal that the experimental conditions have a great effect on the morphology of Ag@Ag Cl crystals. Ag@Ag Cl crystal is cubic and the Ag@Ag Cl sample which is photoreduced for 40 min exhibits the highest photoactivity, and 80.6 % Rh B is degraded after irradiation for 2 hours using this catalyst. The high photocatalytic activity observed is attributed to the surface plasmon resonance effect of Ag nanoparticles.
梁英华，LIN Shuanglong，LIU Li，HU Jinshan，崔文权
Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Chemical Engineering, Hebei United University
摘 要：We put forward a new approach for the synthesis of Ag@Ag Cl plasmonic photocatalyst via a hydrothermal-deposition-photoreduction method. The cetylmethylammonium chloride（CTAC） was used alone as both a source of reactants and surfactant. The structure of the prepared photocatalyst was determined by XRD, SEM, EDX and UV-Vis spectroscoscopy. The photocatalytic properties were investigated by degradation of an organic pollutant, Rhodamine B, under visible light irradiation. The results reveal that the experimental conditions have a great effect on the morphology of Ag@Ag Cl crystals. Ag@Ag Cl crystal is cubic and the Ag@Ag Cl sample which is photoreduced for 40 min exhibits the highest photoactivity, and 80.6 % Rh B is degraded after irradiation for 2 hours using this catalyst. The high photocatalytic activity observed is attributed to the surface plasmon resonance effect of Ag nanoparticles.
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