纳米棒
材料科学
光致发光
光催化
猝灭(荧光)
微波食品加热
化学工程
纳米技术
光电子学
荧光
催化作用
光学
有机化学
化学
物理
工程类
量子力学
作者
Ma. de Lourdes Ruiz Peralta,Umapada Pal,R. Sánchez-Zeferino
摘要
ZnO nanorods decorated with gold nanoparticles of ~20 nm average size were fabricated by microwave-assisted chemical synthesis. For the surface-attached growth of metal nanoparticles, the ZnO nanostructures were first functionalized by sodium citrate and then the metal ions were reduced under microwave heating. While the incorporation of gold nanoparticles at the surface seen to quench both the band edge and visible emissions of the ZnO nanostructures, it enhances the degradation rate of Rhodamine 6G up to 3 folds under UV emission. The mechanisms of citrate functionalization, growth of Au nanoparticles on the surface of the oxide nanostructures, luminescence emission quenching, and enhanced photocatalytic activity of the composite nanostructures have been discussed.
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