Synthesis and characterization of copper vanadate nanostructures via electrochemistry assisted laser ablation in liquid and the optical multi-absorptions performance
Synthesis and characterization of copper vanadate nanostructures via electrochemistry assisted laser ablation in liquid and the optical multi-absorptions performance
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液体中电化学辅助激光烧蚀钒酸铜纳米结构的合成和表征以及光学多重吸收性能
DOI：
10.1039/c2ce06347f
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发表时间：
2012-01-01
期刊：
影响因子：
3.1
通讯作者：
Yang, G. W.
中科院分区：
文献类型：
--
作者：
Liang, Y.;Liu, P.;Yang, G. W.
过渡金属钒酸盐MxVyOn（M = Cu，Ag，Zn，Co，Mo）由于其独特的结构和电学、光学、磁学性质而受到广泛的研究。因此，近年来科学家们开发了许多方法来合成这些材料的纳米结构。然而，这些技术存在许多明显的缺陷，如高温或高压环境，各种模板或添加剂，需要复杂的合成过程，最终产物中的杂质等。电化学辅助液体激光烧蚀（ECLAL）。这是在周围环境下的绿色、简单且无催化剂的方法。利用ECLAL技术合成了不同物相的钒酸铜纳米结构，并通过扫描电子显微镜、透射电子显微镜、X射线衍射分析、傅里叶变换红外光谱和拉曼散射光谱对产物的形貌和结构进行了表征。此外，我们已经通过紫外-可见分光光度计测量了合成产物的光学多吸收特性，这归因于合成的纳米结构中的各种相的共存行为。在此基础上，探讨了钒酸铜纳米结构的物理化学合成机理。
Transition metal vanadates MxVyOn (M = Cu, Ag, Zn, Co, Mo) have been studied extensively due to their fascinating structures and electronic, optical, and magnetic properties. Scientists have thus developed many methods for the synthesis of the nanostructures of these materials in recent years. However, these techniques have many visible flaws, e.g. high temperature or high pressure environment, various templates or additives, demanding complicated synthetic procedures, impurities in final products, and so on. In this contribution, we develop a facile synthesis for fabricating transition metal vanadates nanostructures, i.e., the electrochemistry assisted laser ablation in liquid (ECLAL). This is a green, simple, and catalyst-free approach under an ambient environment. Using ECLAL, we have synthesized copper vanadate nanostructures with various phases, and characterized the morphology and structure of the as-synthesized products by scanning electron microscope, transmission electron microscope, X-ray diffraction analysis, Fourier transform infrared spectroscopy and Raman scattering spectroscopy. Additionally, we have measured the optical multi-absorption properties of the as-synthesized products by a UV-vis spectrophotometer, which was attributed to the co-existing behavior of various phases in the as-synthesized nanostructures. The physical and chemical mechanisms of the synthesis of the copper vanadate nanostructures were pursued upon ECLAL.