Hierarchical plasmonic-metal/semiconductor micro/nanostructures: green synthesis and application in catalytic reduction of p-nitrophenol

Hierarchical plasmonic-metal/semiconductor micro/nanostructures: green synthesis and application in catalytic reduction of p-nitrophenol
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多级等离子体金属/半导体微纳米结构:绿色合成及其在对硝基苯酚催化还原中的应用

DOI:
10.1007/s11051-012-0748-1
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发表时间:
2012-02
影响因子:
2.5
通讯作者:
Chen, Yanli
Chen, Yanli
中科院分区:
材料科学4区
文献类型:
--
作者:
Gao, Shuyan;Jia, Xiaoxia;Li, Zhengdao;Chen, Yanli

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层次化微纳阵列具有纳米级结构单元和微或亚微米级有序阵列的双重优势,是一种潜在的功能材料,具有广泛的应用前景。在本研究中,通过环境友好的途径,在聚乙二醇的辅助下,合成了由金纳米粒子修饰的四维花状CuO微纳米结构。实验结果表明,以NaBH4为还原剂的产物对4-硝基苯酚的还原具有较高的催化性能,这可能与样品中丰富的Au/CuO界面有关。与纯贵金属催化剂相比,所得样品具有较好的经济性。在方法和成本效益方面,本研究提出了一种经济实用的绿色生产高效金属基催化剂的方法。这也是绿色化学与功能材料有机结合的一个很好的例子。
Hierarchical micro/nano arrays can offer both the advantages of nano-sized building blocks and micro- or submicrometer-sized ordered arrays, therefore representing one kind of potential functional materials and having received enormous attention for a wealth of applications. In this study, four-dimensionally flower-like CuO micro/nanostructures decorated by Au nanoparticles are synthesized via an environmentally friendly route assisted by polyethylene glycol. Experiments reveal that the product demonstrates high catalytic performance for the reduction of 4-nitrophenol using NaBH4 as the reducing agent, which could be attributed to the rich Au/CuO interfaces in the samples. Compared to the pure noble metal catalysts, the obtained sample is quite economic. In terms of methodology and cost-effectiveness, this study proposes an economically useful and green method to produce a highly efficient metal-based catalyst. It is also a good example for the organic combination of green chemistry and functional materials.
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