Organic free synthesis of flower-like hierarchical CuO microspheres by reflux condensation approach

被引：33

作者：

Mageshwari, K. ^{[1
]}

Sathyamoorthy, R. ^{[1
]}

机构：

[1] Kongunadu Arts & Sci Coll, PG & Res Dept Phys, Coimbatore 641029, Tamil Nadu, India

来源：

APPLIED NANOSCIENCE | 2013年 / 3卷 / 02期

关键词：

CuO; Nanostructures; Hierarchical assemblies; X-ray diffraction; Quantum confinement;

D O I：

10.1007/s13204-012-0116-6

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In the present work, CuO nanostructures with different morphologies were synthesized by a simple one-pot reflux condensation approach using different alkaline precursors. Structural analysis by X-ray diffraction and Fourier transform infrared spectroscopy revealed the formation of single phase CuO with a monoclinic crystal structure. Morphological analysis by scanning electron microscopy showed the formation of spindle-shaped and flower-like CuO architecture when NaOH and NH4OH were used as alkaline precursors, respectively. The flower-like CuO architecture is found to be made up of 2D nanosheets as building blocks, which were self-assembled to form spherical assemblies. Optical analysis by UV-VIS diffused reflectance spectroscopy showed blue-shift in the optical band gap due to quantum confinement effect. Photoluminescence spectra showed both UV and visible emission. The plausible growth mechanism for the formation of different CuO nanostructures was proposed.

引用

页码：161 / 166

页数：6

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