| Autor: |
Dong, Shuhua, Xu, Kejing, Wei, Chuncheng, Liu, Juncheng |
| Předmět: |
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| Zdroj: |
Research on Chemical Intermediates; Mar2012, Vol. 38 Issue 3-5, p1055-1062, 8p, 1 Black and White Photograph, 1 Chart, 4 Graphs |
| Abstrakt: |
Nanoparticles, microsphere, hedgehog sphere-like and flower-like ZnO:Fe photocatalysts were prepared by the hydrothermal method. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and ultraviolet/visible absorption spectra (UV-Vis). The results show that the ZnO:Fe photocatalysts with different 3D morphologies are a hexagonal wurtzite structure with space group of p63 mc. The pH value of the precursor has a great influence on various morphologies of ZnO:Fe photocatalysts. The flower-like and hedgehog sphere-like ZnO:Fe photocatalysts exhibit the high solar photocatalytic behavior on methylene blue (MB). The ZnO:Fe order of photocatalytic activity is as follows: flower > hedgehog sphere > microsphere > nanoparticle. The flower-like ZnO:Fe is optimal, which exhibits the highest degradation rate of 98% for light time of 5 h. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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