The novel Al-MOF@PPy@Au nanocomposites were synthesized by an in-situ growth method. The prepared Al-MOF@PPy@Au nanocomposites were characterized by Transmission Electron Microscope (TEM), Fourier Transform Infrared Spectrometer (FTIR), X-ray powder diffraction (XRD), Inductively Coupled Plasma (ICP) and X-ray photoelectron spectroscopy (XPS). The catalytic properties of the prepared Al-MOF@PPy@Au nanocomposites with different content of Au were investigated. The results illustrated that the Al-MOF@PPy@Au(G) with 27.80 wt.% (w/w) Au obtained good catalytic performance. P-nitrophenol (4-NP), methyl orange (MO), methylene blue (MB) and rhodamine B (RhB) were used to test the catalytic degradation of Al-MOF@PPy@Au(G) nanocomposites. The degradation efficiency of the Al-MOF@PPy@Au(G) nanocomposites for 4-NP, MO, MB and RhB reached 92.12%, 93.84%, 93.19% and 92.44% within 25 min, 7 min, 16 min and 2 min, respectively. The Al-MOF@PPy@Au(G) nanocomposites still have good degradation efficiency and good stability for 4-NP within one month being in water. The Al-MOF@PPy@Au(G) nanocomposites can be applied to the real water solution without causing the change of the degradation efficiency.

中文翻译：

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负载 Al-MOF@PPy 的 Au NPs 作为去除水中有机污染物的优良催化剂

通过原位生长法合成了新型 Al-MOF@PPy@Au 纳米复合材料。所制备的Al-MOF@PPy@Au纳米复合材料通过透射电子显微镜（TEM）、傅里叶变换红外光谱仪（FTIR）、X射线粉末衍射（XRD）、电感耦合等离子体（ICP）和X射线光电子能谱进行表征（ XPS）。研究了制备的不同Au含量的Al-MOF@PPy@Au纳米复合材料的催化性能。结果表明，27.80 wt.% (w/w) Au的Al-MOF@PPy@Au(G)获得了良好的催化性能。对硝基苯酚 (4-NP)、甲基橙 (MO)、亚甲蓝 (MB) 和罗丹明 B (RhB) 用于测试 Al-MOF@PPy@Au(G) 纳米复合材料的催化降解。Al-MOF@PPy@Au(G)纳米复合材料对4-NP、MO、MB和RhB的降解效率分别达到92.12%、93.84%、93。在 25 分钟、7 分钟、16 分钟和 2 分钟内分别为 19% 和 92.44%。Al-MOF@PPy@Au(G)纳米复合材料在水中1个月内对4-NP仍具有良好的降解效率和良好的稳定性。Al-MOF@PPy@Au(G)纳米复合材料可以应用于真实的水溶液，而不会引起降解效率的变化。