Preparation of Nanosize Iron Pyrite FeS2 and its Properties

Abstract:

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The nano-particle pyrite in nano-particle form was synthesized by the deposition hydrothermal reaction using FeCl3•6H2O, Na2S•9H2O and S as the starting materials. The property of particles was investigated by X-ray diffraction, transmission electron microscope, UV-Vis spectrophotometer. The results indicated that the pure iron pyrite could be achieved in the alkaline condition. Increasing the proportion of S avails to removing marcasite and ferric oxide . Wwhen the amount of FeCl3, Na2S and S is in the ratio of 1:3:1.5, the product is pure pyrite FeS2 powder with a polyhedron shape is obtained and the average particle size isof about 20~40nm, and this result can be easily repeated. Optical analysis indicates that the optic energy band gap is about 1.62 eV. Its open circuit voltage is 456mV, and the corresponding short circuit current is 19 μA.

Info:

Periodical:

Materials Science Forum (Volumes 610-613)

Main Theme:

Edited by:

Zhong Wei Gu, Yafang Han, Fu Sheng Pan, Xitao Wang, Duan Weng and Shaoxiong Zhou

Pages:

459-462

DOI:

10.4028/www.scientific.net/MSF.610-613.459

Citation:

J. Zou and J. C. Gao, "Preparation of Nanosize Iron Pyrite FeS2 and its Properties", Materials Science Forum, Vols. 610-613, pp. 459-462, 2009

Online since:

January 2009

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Price:

$35.00

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