3D rod-like copper oxide with nanowire hierarchical structure: Ultrasound assisted synthesis from Cu2(OH)3NO3 precursor, optical properties and formation mechanism
| Autor: | Jianfa Li, Jingfeng Sun, Lianjie Zhu, Ningning Ba, Guangzhi Zhang, Hongbin Li |
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| Rok vydání: | 2016 |
| Předmět: |
Copper oxide
Photoluminescence Materials science Absorption spectroscopy Nanowire Nanoparticle Nanotechnology 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Ultrasound assisted 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Chemical engineering chemistry General Materials Science Diffuse reflection 0210 nano-technology High-resolution transmission electron microscopy |
| Zdroj: | Solid State Sciences. 53:23-29 |
| ISSN: | 1293-2558 |
| DOI: | 10.1016/j.solidstatesciences.2016.01.004 |
| Popis: | 3-dimensional (3D) rod-like CuO with nanowire hierarchical structure has been synthesized successfully by a facile ultrasound assisted method combined with thermal conversion, using rouaite Cu2(OH)3NO3 as the precursor. The product was characterized by XRD, SEM, TEM, HRTEM and FT-IR spectrum. Its optical properties were studied by means of UV–Vis diffuse reflectance absorption spectroscopy and photoluminescence (PL) spectrum. Series of control experiments have been performed to explore influencing factors to the product morphologies and a possible formation mechanism has been proposed. The results show that each CuO rod assembled by tens of nanowires is 200–300 nm in diameter and about 1000 nm in length. Each nanowire contains many interconnected nanoparticles with sizes of about 15 nm. Particularly, ultrasound processing was found beneficial to the formation of the 3D rod-like CuO with nanowire hierarchical structure. |
| Databáze: | OpenAIRE |
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