Au nanoparticle-decorated ultrathin CdS nanowires for high-efficiency photodegradation of organic dyes
作者： Xinyu Wang , Yulong Ying , Pan Hu , Jiahuan Lei , Xinsheng Peng
DOI: 10.1007/S00339-015-9382-Y
关键词: Chemical engineering 、 Nanowire 、 Absorption (electromagnetic radiation) 、 Photocatalysis 、 Materials science 、 Nanoparticle 、 Nanotechnology 、 Visible spectrum 、 Photodegradation
摘要: CdS nanowires (NWs) are obtained by the sulfurization of Cd(OH)2 at room temperature using H2S. The NWs with diameter 2–5 nm exhibit high photocatalytic performance due to ultrafine size. To further improve performance, Au nanoparticles (NPs) different sizes, i.e., 5, 20, 40 and 100 nm, that decorated synthesized through a simple self-assembly solid sulfuration process. NPs–CdS hybrids show higher efficiency than pure NWs. Furthermore, 20 an optimal loading 3.2 wt% highest efficiency. Both enhanced separation photoinduced hole–electron pairs absorption visible light incorporating NPs significantly performance.
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