爆轰合成纳米超微金刚石的提纯方法研究

Purification of Ultrafine Diamonds Obtained From Detonation

用炸药爆轰的方法制备了纳米超微金刚石 ,分别用HCIO4、H2 SO4+K2 Cr2 O7以及H2 SO4+KMnO4等多种方法对纳米超微金刚石进行了提纯研究。用X射线衍射、差热和热失重对不同提纯方法得到的超微金刚石进行了分析。结果表明 ,H2 SO4+KMnO4提纯是一种高效、经济、安全、污染小、投资少的提纯新方法。

Ultrafine Diamonds (UFD) are produced under high pressure and high temperature generated by explosive detonation.UFD are purified by various means including HClO 4、H 2SO 4+K 2Cr 2O 7 and H 2SO 4+KMnO 4. XRD,TG and DTA are used to analyze UFD.The results show that,comparied with other methods,H 2SO 4+KMnO 4 is a more efficient,cheaper and safer purification method with less pollution and less investment.