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http://dx.doi.org/10.14481/jkges.2019.20.11.5

Removal of Reactive Orange 16 by the Ag/TiO2 Composite Produced from Micro-emulsion Method  

Lee, SiJin (Department of Environmental Energy Engineering, Kyonggi University)
Publication Information
Journal of the Korean GEO-environmental Society / v.20, no.11, 2019 , pp. 5-10 More about this Journal
Abstract
For the development of long-wavelength responding photocatalyst, Ag was applied to commercial $TiO_2$ to produce $Ag/TiO_2$ photocatalyst. Moreover, micro-emulsion method was used in order to increase the efficiency of the photocatalyst by enhancing the dispersion of Ag. Physical properties of the manufactured catalyst were analyzed by scanning electron microscopy (SEM), field emission transmission electron microscopy (FE-TEM) and diffuse reflectance spectroscopy (DRS). For the catalytic performance measurement, RO 16 (Reactive Orange 16) removal was performed with 25 ppm RO 16 under UV-A (365 nm) irradiation. In addition, ball milling and dip-coating method were used to synthesize the photocatalyst for the comparison of the outcomes of using different synthesis methods. In addition, catalytic performance was improved by varying the Ag content and surfactant content. The highest catalytic performance was shown at $Ag/TiO_2$ synthesized by micro-emulsion method with 2 wt% of Ag content, and 0.5 g of the surfactant.
Keywords
Micro-emulsion method; $Ag/TiO_2$; Photocatalyst; Reactive orange 16;
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