کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1461518 | 989620 | 2014 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis, structure and optical properties of x(CuO)/(1−x)Ni(OH)2 [x=0, 0.1 and 0.3] nanocomposites Synthesis, structure and optical properties of x(CuO)/(1−x)Ni(OH)2 [x=0, 0.1 and 0.3] nanocomposites](/preview/png/1461518.png)
The x(CuO)/(1−x)Ni(OH)2 [x=0, 0.1 and 0.3] nanocomposites were prepared by the hydrothermal method in the presence of the surfactant polyethylenglycol-10000 (PEG-10000). X-ray diffraction (XRD), infrared (IR) spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to characterize the as-prepared samples. The increase of the CuO content led to the increase of the crystallite size of both, the β-Ni(OH)2 and the CuO. The increase in the crystallite size greatly affects the band gap energy of the as-prepared nanocomposites. The band gap energies of the x(CuO)/(1−x)Ni(OH)2 nanocomposites were estimated by UV–vis spectroscopic method. UV–vis spectroscopic results showed an apparent decrease in the direct band gap energies. The x(CuO)/(1−x)Ni(OH)2 [x=0, 0.1 and 0.3] nanocomposites show low band gap energies compared to the Ni(OH)2 bulk materials. The enhanced optical properties lead to their possible use in photocatalytic and photovoltaic applications.
Journal: Ceramics International - Volume 40, Issue 6, July 2014, Pages 7823–7827