Uniform ZnSe hollow nanospheres with face-centered cubic structure were synthesized via a post-synthetic chemical transformation reaction from solid Cu_2−xSe nanocrystals, with the help of tributylphosphine at room temperature under an ambient atmosphere. The formation of ZnSe hollow structure was based on the synergetic effect of isotropic cation exchange from Cu_2−xSe to ZnSe and concurrent selective etching of Cu_2−xSe templates through anion extraction. The degree of hollowness could be adjusted by changing the feed molar ratio of Zn/Cu and reaction temperature which determined the extent of cation exchange. These ZnSe hollow nanospheres exhibited excellent catalytic activity and stability for the photodegradation of dyes.

中文翻译：

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具有高光催化活性的空心ZnSe纳米球的合成：阳离子交换和选择性Cu _{2− x} Se模板蚀刻的协同作用†

与面心立方结构的ZnSe均匀空心球，合成通过由固体铜一个合成后的化学转化反应_{2- X}硒纳米晶体，具有三丁基膦的帮助下在室温下，在环境气氛下。的ZnSe中空结构的形成是基于选自Cu各向同性阳离子交换的协同效应_{2- X}硒到ZnSe和并发选择性的Cu蚀刻_{2- X}通过阴离子提取Se模板。空心度可以通过改变Zn / Cu的进料摩尔比和反应温度来调节，该反应温度决定了阳离子交换的程度。这些ZnSe中空纳米球表现出优异的催化活性和对染料的光降解稳定性。