中文摘要：

在水的答案的 CuH nanoparticles 的分解成功地为 Cu2O nanoparticles 的准备作为一个新奇方法被开发了。特别地，我们发现在水的答案的 CuH nanoparticles 的分解能被 Au 胶体催化，形成 Cu2O-Au nanocomposites。产生 Cu2O-Au nanocomposites 的作文和结构被诱导地联合的血浆详细描绘了原子排放光谱学，粉末 X 光检查衍射， N2 吸附解吸附作用等温线，红外线的光谱学， X 光检查光电子光谱学，扫描电子显微镜学和传播电子显微镜学。他们向各种各样的染料分子的 visible-light-driven photocatalytic 活动也被调查了。取决于 Au : Cu 比率， Cu2O-Au nanocomposites 展览包括由多晶的 Cu2O，非结晶的 Cu2O 和 Au 组成的美丽的象花的 nanostructure 的不同新奇 nanostructures 胶体。我们建议 H2 的快产生的水泡在催化分解反应的功课期间驱使同时形成的 Cu2O 形成非结晶的弄弯的薄陪衬并且当装配的一个模板弄弯非结晶的 Cu2O，多晶的 Cu2O 和 Au 胶体的薄陪衬进一致 nanostructures，可能也行动。有 Cu 的 Cu2O-Au nanocomposite : 40 的 Au 比率向甲基橘子和酸橘子展出显著化学吸着能力和 visible-light-driven photocatalytic 活动 7 并且是有希望的化学吸着光催化综合催化剂。金属氢化物的催化分解可能与新奇 nanostructures 和性质为另外的金属 / 金属氧化物 nanocomposites 的制造开创一条新途径。

英文摘要：

The decomposition of Cull nanoparticles in aqueous solution has been successfully developed as a novel method for the preparation of Cu2O nanoparticles. In particular, we found that the decomposition of Cull nanoparticles in aqueous solution could be catalyzed by Au colloids, forming CU2O-Au nanocomposites. The composition and structure of the resulting Cu2O-Au nanocomposites have been characterized in detail by inductively coupled plasma atomic emission spectroscopy, powder X-ray diffraction, N2 adsorption-desorption isotherms, infrared spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy and transmission electron microscopy. Their visible-light-driven photocatalytic activity toward various dye molecules has also been investigated. Depending on the Au：Cu ratio, Cu20-Au nanocomposites exhibit different novel nanostructures including a beautiful flower-like nanostructure that consists of polycrystalline Cu2O, amorphous Cu2O and Au colloids. We propose that the rapidly-generated bubbles of H2 during the course of the catalytic decomposition reaction drive the simultaneously-formed Cu2O to form amorphous curved thin foils and might also act as a template to assemble curved thin foils of amorphous Cu2O, polycrystalline Cu2O and Au colloids into uniform nanostructures. A Cu2O-Au nanocomposite with a Cu：Au ratio of 40 exhibits remarkable chemisorption capacity and visible-light-driven photocatalytic activity towards methyl orange and acid orange 7 and is a promising chemisorption-photocatalysis integrated catalyst. The catalytic decomposition of the metal hydride might open up a new approach for the fabrication of other metal/metal oxide nanocomposites with novel nanostructures and properties.