Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8020785 | Materials Letters | 2014 | 4 Pages |
Abstract
SiC/SiO2 nanochains were prepared by a simple chemical vapor reaction method and characterized using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and UV-vis diffuse reflectance spectroscopy analyses. The visible-light photocatalytic activity of SiC/SiO2 nanochains was investigated by the photocatalytic decomposition of Rhodamine B in the aqueous solution. The results show that the SiC/SiO2 nanochain has equirotal beads of 650Â nm and a uniform string with a diameter of 240Â nm. The photo-response behavior of the SiC/SiO2 nanochain can be expanded to visible-light region with a high absorbance. The photocatalytic activity of SiC/SiO2 nanochains was found to be better compared to that of the SiO2-free SiC nanowires owing to the nanosized SiO2 coating that can form activated hydroxyl groups and effectively separate the photogenerated electrons and holes.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Li Cuiyan, Ouyang Haibo, Huang Jianfeng, Zeng Xierong, Cao Liyun, Fei Jie, Xiong Xinbo,