氧化物直接转化法制备汞的硫属化合物纳米材料

An Oxide Direct Conversion Route to Nanocrystalline Mercury Chalcogenides

以低毒性的 Hg O与 S,Se,Te单质为原料 ,乙二胺为溶剂 ,在室温下合成了汞的硫属化合物纳米材料 Hg S,Hg Se和 Hg Te,并通过 XRD,TEM和 XPS对产物进行了表征 .结果表明 ,所合成的产物为六方相α-Hg S和立方闪锌矿结构的 Hg Se和 Hg Te,且纯度高 ,粒度分布均匀 .

An oxide direct conversion route was reported to synthesize the nanocrystalline HgE (E=S,Se,Te) in ethylenediamine at room temperature. Mercury oxide was used as mercury source and sulfur, selenium, tellerium, respectively, as chalcogenide sources. XRD patterns show that the obtained samples are hexagonal(wurtzite structure) HgS, cubic (zinc blende structure) HgSe and HgTe. The influences of solvent and reaction temperature were investigated and it was found that the ethylenediamine plays a crucial role in the conversion process.