Enhanced photocatalytic activity of cobalt-doped CeO2 nanorods

被引:63
作者
Arul, N. Sabari [1 ]
Mangalaraj, D. [1 ]
Chen, Pao Chi [2 ]
Ponpandian, N. [1 ]
Meena, P. [3 ]
Masuda, Yoshitake [4 ]
机构
[1] Bharathiar Univ, Dept Nanosci & Technol, Coimbatore 641046, Tamil Nadu, India
[2] Lunghwa Univ Sci & Technol, Dept Chem & Mat Engn, Tao Yuan, Taiwan
[3] PSGR Krishnammal Coll Women, Dept Phys, Coimbatore 641004, Tamil Nadu, India
[4] Natl Inst Adv Ind Sci & Technol, Moriyama Ku, Nagoya, Aichi 4638560, Japan
关键词
Co-doped CeO2 nanorods; Chemical synthesis; Surface area; Photocatalytic properties; AZO dyes; CERIUM OXIDE NANOPARTICLES; ULTRAVIOLET-ABSORPTION; CONVERSION; NANOWIRES; NANOBELTS;
D O I
10.1007/s10971-012-2883-7
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
In this paper, CeO2 and cobalt-doped CeO2 nanorods synthesized by surfactant free co-precipitation method. The microstructures of the synthesized products were characterized by XRD, FESEM and TEM. The structural properties of the grown nanorods have been investigated using electron diffraction and X-ray diffraction. High resolution transmission electron microscopy studies show the polycrystalline nature of the Co-doped cerium oxide nanorods with a length of about 300 nm and a diameter of about 10 nm were produced. The X-ray Photoelectron spectrum confirms the presence of cobalt in cerium oxide nanorods. From BET, the specific surface area of the CeO2 (Co-doped) nanostructures (131 m(2) g(-1)) is found to be significantly higher than that of pure CeO2 (52 m(2) g(-1)). The Co-doped cerium nanorods exhibit an excellent photocatalytic performance in rapidly degrading azodyes acid orange 7 (AO7) in aqueous solution under UV illumination.
引用
收藏
页码:515 / 523
页数:9
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