Preparation of Nanosize Iron Pyrite FeS2 and Its Properties
The nano-particle pyrite 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. When the amount of FeCl3, Na2S and S is 1:3:1.5, the pure pyrite FeS2 powder with a polyhedron shape is obtained and the average particle size is about 20～40nm. 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.
Nano FeS2 Deposition Hydrothermal Method Pyrite
Jian ZOU Jiacheng GAO
College of Material science and Engineering, Chongqing University, Chongqing,400044,China School of College of Material science and Engineering, Chongqing University, Chongqing,400044,China
国际会议
重庆
英文
459-462
2008-06-09（万方平台首次上网日期，不代表论文的发表时间）