Synthesis of ZnS hollow nanospheres with holes using different amine templates

• 来源期刊: 中国高等学校学术文摘·化学
• 关键词: zinc sulphide amine template synthesis hollow nanosphere
• 年，卷（期）: 2008,（1）
• 页码范围: 76-80
• 页数: 5页
• 语种: 英文
• DOI: 10.1007/s11458-008-0022-3

摘要

ZnS hollow nanospheres with holes were prepared by reacting ZnSO4 with H2S, the sulfide source formed in the reaction of CS2 with ethylenediamine, 1,3-propylenediamine, butylamine or 2-(2-aminoethylamino) ethanol, which also acted as a template agent, at 50℃ under agitation. The shape, particle size of about 100-850 nm and hole size of about 150-600 nm of ZnS hollow nanospheres with holes were shown by SEM and TEM images. These ZnS nanospheres with β cubic ZnS phase and composed of 2-5 nm nanocrystals were characterized by XRD and HRTEM. The blue shift of maximum absorption in UV-vis displayed the effect of quantum size. The two amino groups of amine templates reacted favorably with Zn2+ to form uniform and relatively smooth ZnS nanospheres with holes, while hydroxyethyl played a disadvantageous role. A reason-able mechanism of hole formation by H2S rushing out is suggested.