Photocatalytic performance of graphene/Ag/TiO₂ hybrid nanocomposites
(주)학지사
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- 2016.08.08
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서지정보
ㆍ발행기관 : 한국탄소학회
ㆍ수록지정보 : Carbon Letters / 16권 / 4호
ㆍ저자명 : Jong-Ho Lee, In-Ki Kim, Donghwan Cho, Jeong-Il Youn, Young-Jig Kim, Han-Jun Oh
목차
1. Introduction
2. Experimental
3. Results and Discussion
4. Conclusions
References
한국어 초록
To improve photocatalytic efficiency, graphene/Ag/TiO₂ nanotube catalyst was synthesized,
and its surface characteristics and photocatalytic activity investigated. For deposition of Ag
nanoparticles on the TiO₂ nanotubes, a polymer compound containing CH₃COOAg/poly(Llactide)
was utilized, and the silver particles were precipitated by reducing the silver ions
during the annealing process. Graphene deposition on the Ag/TiO₂ nanotubes was achieved
using an electrophoretic deposition process. Based on the dye degradation results, it was
determined that the photocatalytic efficiency was significantly affected by deposition of silver
particles and graphene on the TiO₂ catalyst. Highly efficient destruction of the dye was
obtained with the new graphene/Ag/TiO₂ nanotube photocatalyst. This may be attributed to
a synergistic effect of the graphene and Ag nanoparticles on the TiO₂ nanotubes.
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