Department of Nano-Physics, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si, Gyeonggi-do 461-701, South Korea.
Department of Chemistry, Daejin University, Sundan-dong, Pocheon-si, Gyeonggi-do 487-711, South Korea.
J Colloid Interface Sci. 2017 Nov 1;505:437-444. doi: 10.1016/j.jcis.2017.06.041. Epub 2017 Jun 13.
Reverse-engineered Ag nanowire/ZnO nanobush hybrid structures have been synthesized for the first time by a combination of polyol method and low-temperature solution method. Through the elaborate control of Ag-to-ZnO weight ratio, vertically aligned ZnO nanobushes grew on the surface of well-faceted Ag nanowires. The Ag/ZnO hybrid nanostructures showed the crystal features of both Ag nanowires and wurtzite ZnO nanostructures. They exhibited strong UV absorption, whereas their photoluminescence spectra were much weaker than pure ZnO nanostructures due to the inhibited carrier recombination. The photocatalytic activity of Ag/ZnO hybrid nanostructures was greatly improved compared to pure ZnO nanostructures. Furthermore, they showed good cyclic performance and easy recovery from the test solution, demonstrating the possibility of their practical use.
首次通过多元醇法和低温溶液法的结合，合成了反向工程的 Ag 纳米线/ZnO 纳米丛混合结构。通过精心控制 Ag 与 ZnO 的重量比，垂直排列的 ZnO 纳米丛生长在具有多面 Ag 纳米线的表面上。Ag/ZnO 混合纳米结构表现出 Ag 纳米线和纤锌矿 ZnO 纳米结构的晶体特征。它们表现出很强的紫外吸收，而由于载流子复合受到抑制，其光致发光光谱比纯 ZnO 纳米结构弱得多。与纯 ZnO 纳米结构相比，Ag/ZnO 混合纳米结构的光催化活性大大提高。此外，它们表现出良好的循环性能和易于从测试溶液中回收，展示了它们实际应用的可能性。
