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http://dx.doi.org/10.14478/ace.2020.1077

Direct Synthesis of Au/TiO2/graphene Composites and Their Application for Degradation of Various Organic Dyes  

Jeong, Gyoung Hwa (Department of Materials Science and Engineering, KAIST)
Kim, Sang-Wook (Department of Applied Chemistry and Biological Engineering, Ajou University)
Publication Information
Applied Chemistry for Engineering / v.31, no.6, 2020 , pp. 607-611 More about this Journal
Abstract
In this research, we synthesized Au/TiO2/graphene composites using ionic surfactants for the exfoliation of graphite layers, directly. In the graphene composite, TiO2 with thin nanosheet shapes was distributed on the graphene surface and Au nanoparticles with less than 10 nm sizes were evenly distributed on the surface of the TiO2 nanosheets. The Au/TiO2/graphene composite was then applied to the photodegradation of various dyes such as methylene blue, methylene orange and rhodamine 6G, and B. Among them, the methylene blue showed the most excellent photodegradation activity (91.6%) while the rhodamine B exhibited 31.0%.
Keywords
Graphite; Au/$TiO_2$/graphene; Organic dye; Photodegradation;
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